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ts5070 ts5071 programmable codec/filter combo 2 nd generation complete codec and filter system including : C transmit and receive pcm channel filters C m -law or a-law companding coder and decoder C receive power amplifier drives 300 w C 4.096 mhz serial pcm data (max) programmable functions : C transmit gain : 25.4 db range, 0.1 db steps C receive gain : 25.4 db range, 0.1 db steps C hybrid balance cancellation fil- ter C time-slot assignment: up to 64 slots/frame C 2 port assignment (ts5070) C 6 interface latches (ts5070) Ca or m -law C analog loopback C digital loopback direct interface to solid-state slics simplifies transformer slic, single winding secondary standard serial control interface 80 mw operating power (typ) 1.5mw standby power (typ) meets or exceeds all ccitt and lssgr specifications ttl and cmos compatible digital in- terfaces description the ts5070 series are the second generation com- bined pcm codec and filter devices optimized for digital switching applications on subscriber and trunk line cards. using advanced switched capacitor techniques the ts5070 and ts5071 combine transmit bandpass and receive lowpass channel filters with a com- panding pcm encoder and decoder. the devices are a-law and m -law selectable and employ a con- ventional serial pcm interface capable of being clocked up to 4.096 mhz. a number of programma- ble functions may be controlled via a serial control port. channel gains are programmable over a 25.4 db range in each direction, and a programmable filter is included to enable hybrid balancing to be ad- justed to suit a wide range of loop impedance con- ditions. both transformer and active slic interface circuits with real or complex termination impedances can be balanced by this filter, with cancellation in ex- cess of 30 db being readily achievable when meas- ured across the passband against standard test ter- mination networks. to enable combo iig to interface to the slic con- trol leads, a number of programmable latches are included ; each may be configured as either an in- put or an output. the ts5070 provides 6 latches and the ts5071 5 latches. december 1997 dip20 (plastic) ordering number: TS5071N plcc28 ordering numbers: ts5070fn ts5070fntr 1/32
ts5070 pin functionality (plcc28) no. name function 1 gnd ground input (+0v) 2vf r 0 analog output 3v ss supply input (-5v) 4 nc not connected 5 nc not connected 6 il3 digital input or output defined by ldr register content 7 il2 digital input or output defined by ldr register content 8fs r digital input 9d r 1 digital input sampled by bclk falling edge 10 d r 0 digital input sampled by bclk falling edge 11 co digital output (shifted out on cclk rising edge) 12 ci digital input (sampled on cclk falling edge) 13 cclk digital input (clock) 14 cs digital input (chip select for ci/co) 15 mr digital input 16 bclk digital input (clock) 17 mclk digital input 18 d x 0 digital output clocked by bclk rising edge 19 d x 1 digital output clocked by bclk rising edge 20 ts x 0 open drain output (pulled low by active dx0 time slot) 21 ts x 1 open drain output (pulled low by active dx1 time slot) 22 fs x digital input 23 il5 digital input or output defined by ldr register content 24 il4 digital input or output defined by ldr register content 25 il1 digital input or output defined by ldr register content 26 il0 digital input or output defined by ldr register content 27 v cc supply input (+5v) 28 vf x i analog input hybrid balance filter encoder tx gain tx register tx time slot vref hybal 1 hybal 2 hybal 3 time-slot assignment ctl reg. rx time slot rx register rx gain decoder az ts5070/71 interface latches latch dir latch cont. control interface dx0 dx1 tsx0 tsx1 fsx bclk fsr dr0 dr1 mclk mr cs cclk co ci vss=-5v vcc=+5v vfxi vfro gnd il5 il4 il3 il2 il1 il0 d94tl135 ts5070 functional diagram ts5070 - ts5071 2/32
block diagram absolute maximum ratings symbol parameter value unit v cc v cc to gnd 7 v v ss v ss to gnd C 7 v voltage at vfxi v cc + 0.5 to v ss C 0.5 v v in voltage at any digital input v cc + 0.5 to gnd C 0.5 v current at vfro 100 ma i o current at any digital output 50 ma t stg storage temperature range C 65, + 150 c t lead lead temperature range (soldering, 10 seconds) 300 c ts5070 - ts5071 3/32
pin connections power supply, clock name pin type ts5070 fn ts5071 n function description v cc v ss gnd s s s 27 3 1 19 3 1 positive power supply negative power supply ground + 5 v 5 % C 5 v 5 % all analog and digital signals are referenced to this pin. bclk i 16 12 bit clock bit clock input used to shift pcm data into and out of the d r and d x pins. bclk may vary from 64 khz to 4.096 mhz in 8 khz increments, and must be synchronous with mclk (ts5071 only). mclk i 17 12 master clock master clock input used by the switched capacitor filters and the encoder and decoder sequencing logic. must be 512 khz, 1. 536/1. 544 mhz, 2.048 mhz or 4.096 mhz and synchronous with bclk. bclk and mclk are wired together in the ts5071. plcc28 ts5070fn dip20 TS5071N ts5070 - ts5071 4/32
transmit section name pin type ts5070 fn ts5071 n function description fs x i 22 15 transmit frame sync. normally a pulse or squarewave waveform with an 8 khz repetition rate is applied to this input to define the start of the transmit time-slot assigned to this device (non-delayed data mode) or the start of the transmit frame (delayed data mode using the internal time-slot assignment counter). vf x i i 28 20 transmit analog this is a highCimpedance input. voice frequency signals present on this input are encoded as an aClaw or m Claw pcm bit stream and shifted out on the selected d x pin. d x 0 d x 1 0 0 18 19 13 C transmit data d x 1 is available on the ts5070 only, d x 0 is available on all devices. these transmit data triCstate a outputs remain in the high impedance state except during the assigned transmit timeCslot on the assigned port, during which the transmit pcm data byte is shifted out on the rising edges of bclk. ts x 0 ts x 1 0 0 20 21 14 C transmit timeCslot ts x 1 is available on the ts5070 only. ts x 0 is available on all devices. normally these opendrain outputs are floating in a high impedance state except when a timeCslot is active on one of the d x outputs, when the apppropriate ts x output pulls low to enable a backplane lineCdriver. should be strapped to ground (gnd) when not used. receive section name pin type ts5070 fn ts5071 n function description fs r i 8 6 receive frame sync. normally a pulse or squarewave waveform with an 8 khz repetition rate is applied to this input to define the start of the receive timeCslot assigned to this device (non-delayed frame mode) or the start of the receive frame (delayed frame mode using the internal time-slot assignment counter. vf r 0 0 2 2 receive analog the receive analog power amplifier output, capable of driving load impedances as low as 300 w (depending on the peak overload level required). pcm data received on the assigned d r pin is decoded and appears at this output as voice frequency signals. d r 0 d r 1 i i 10 9 7 C receive data d r 1 is available on the ts5070 only, d r 0 is available on all devices. these receive data input(s) are inactive except during the assigned receive timeCslot of the assigned port when the receive pcm data is shifted in on the falling edges of bclk. ts5070 - ts5071 5/32
functional description power-on initialization when power is first applied, power-on reset cir- cuitry initializes combo iig and puts it into the power-down state. the gain control registers for the transmit and receive gain sections are pro- grammed for no output, the hybrid balance circuit is turned off, the power amp is disabled and the device is in the non-delayed timing mode. the latch direction register (ldr) is pre-set with all il pins programmed as inputs, placing the slic interface pins in a high impedance state. the ci/o pin is set as an input ready for the first con- trol byte of the initialization sequence. other initial states in the control register are indicated in ta- ble 2. a reset to these same initial conditions may also be forced by driving the mr pin momentarily high. this may be done either when powered-up or down. for normal operation this pin must be pulled low. if not used, mr should be hard-wired to ground. the desired modes for all programmable functions may be initialized via the control port prior to a power-up command. interface, control, reset name pin type ts5070 fn ts5071 n function description il5 il4 il3 il2 il1 il0 i/o i/o i/o i/o i/o i/o 23 24 6 7 25 26 C 16 4 5 17 18 interface latches il5 through il0 are available on the ts5070, il4 through il0 are available on the ts5071. each interface latch i/o pin may be individually programmed as an input or an output determined by the state of the corresponding bit in the latch direction register (ldr) . for pins configured as inputs, the logic state sensed on each input is latched into the interface latch register (ilr) whenever control data is written to combo iig, while cs is low, and the information is shifted out on the co (or ci/o) pin. when configured as outputs, control data written into the ilr appears at the corresponding il pins. cclk i 13 9 control clock this clock shifts serial control information into or out of ci or co (or ci/o) when the cs input is low depending on the current instruction. cclk may be asynchronous with the other system clocks. ci/o i/o C 8 control data input/output this is control data i/o pin wich is provided on the ts5071. serial control information is shifted into or out of combo iig on this pin when cs is low. the direction of the data is determined by the current instruction as defined in table 1. ci co i o 12 11 C C control data input control data output these are separate controls, availables only on the ts5070. they can be wired together if required. cs i 14 10 chip select when this pins is low, control information can be written to or read from the combo iig via the ci and co pins (or ci/o). mr i 15 11 master reset this logic input must be pulled low for normal operation of combo iig. when pulled momentarily high, all programmable registers in the device are reset to the states specified under "powerCon initialization". ts5070 - ts5071 6/32
power-down state following a period of activity in the powered-up state the power-down state may be re-entered by writing any of the control instructions into the serial control port with the "p" bit set to "1" it is recom- mended that the chip be powered down before writ- ing any additional instructions. in the power-down state, all non-essential circuitry is de-activated and the d x 0 and d x 1 outputs are in the high impedance tri-state condition. the coefficients stored in the hybrid balance circuit and the gain control registers, the data in the ldr and ilr, and all control bits remain unchanged in the power-down state unless changed by writing new data via the serial control port, which remains operational. the outputs of the interface latches also remain active, maintaining the ability to moni- tor and control a slic. transmit filter and encoder the transmit section input, vf x i, is a high imped- ance summing input which is used as the differenc- ing point for the internal hybrid balance cancellation signal. no external components are needed to set the gain. following this circuit is a programmable gain/attenuation amplifier which is controlled by the contents of the transmit gain register (see pro- grammable functions section). an active prefilter then precedes the 3rd order high-pass and 5th or- der low-pass switched capacitor filters. the a/d converter has a compressing characteristic accord- ing to the standard ccitt a or m 255 coding laws, which must be selected by a control instruction dur- ing initialization (see table 1 and 2). a precision on- chip voltage reference ensures accurate and highly stable transmission levels. any offset voltage aris- ing in the gain-set amplifier, the filters or the com- parator is cancelled by an internal auto-zero circuit. each encode cycle begins immediately following the assigned transmit time-slot. the total signal delay referenced to the start of the time-slot is ap- proximately 165 m s (due to the transmit filter) plus 125 m s (due to encoding delay), which totals 290 m s. data is shifted out on d x 0 or d x 1 during the selected time slot on eight rising edges of bclk. decoder and receive filter pcm data is shifted into the decoders receive pcm register via the d r 0 or d r 1 pin during the se- lected time-slot on the 8 falling edges of bclk. the decoder consists of an expanding dac with either a or m 255 law decoding characteristic, which is se- lected by the same control instruction used to select the encode law during initialization. following the decoder is a 5th order low-pass switched capacitor filter with integral sin x/x correction for the 8 khz sample and hold. a programmable gain amplifier, which must be set by writing to the receive gain register, is included, and finally a post-filter/power amplifier capable of driving a 300 w load to 3.5 v, a 600 w load to 3.8 v or 15 k w load to 4.0 v at peak overload. a decode cycle begins immediately after each re- ceive time-slot, and 10 m s later the decoder dac output is updated. the total signal delay is 10 m s plus 120 m s (filter delay) plus 62.5 m s (1/2 frame) which gives approximately 190 m s. pcm interface the fs x and fs r frame sync inputs determine the beginning of the 8-bit transmit and receive time- slots respectively. they may have any duration from a single cycle of bclk to one mclk period low. two different relationships may be estab- lished between the frame sync inputs and the actual time-slots on the pcm busses by setting bit 3 in the control register (see table 2). non delayed data mode is similar to long-frame timing on the etc5050/60 series of devices : time-slots being nominally coincident with the rising edge of the ap- propriate fs input. the alternative is to use de- layed data mode which is similar to short-frame sync timing, in which each fs input must be high at least a half-cycle of bclk earlier than the time- slot. the time-slot assignment circuit on the device can only be used with delayed data timing. when using time-slot assignment, the beginning of the first time-slot in a frame is identified by the appropriate fs input. the actual transmit and receive time-slots are then determined by the internal time-slot as- signment counters. transmit and receive frames and time-slots may be skewed from each other by any number of bclk cycles. during each assigned transmit time-slot, the se- lected d x 0/1 output shifts data out from the pcm register on the rising edges of bclk. ts x 0 (or ts x 1 as appropriate) also pulls low for the first 7 1/2 bit times of the time-slot to control the tri- state enable of a backplane line driver. serial pcm data is shifted into the selected d r 0/1 input during each assigned receive time slot on the falling edges of bclk. d x 0 or d x 1 and d r 0 or d r 1 are selectable on the ts5070 only. serial control port control information and data are written into or readback from combo iig via the serial control port consisting of the control clock cclk ; the serial data input/output ci/o (or separate input ci, and output co on the ts5070 only) ; and the chip se- lect input cs. all control instructions require 2 bytes, as listed in table 1, with the exception of a sin- gle byte power-up/down command. the byte 1 bits are used as follows: bit 7 specifies power-up or power-down; bits 6, 5, 4 and 3 specify the register address; bit 2 specifies whether the instructions is read or write; bit 1 specifies a one or two byte in- ts5070 - ts5071 7/32
struction; and bit 0 is not used. to shift control data into combo iig, cclk must be pulsed high 8 times while cs is low. data on the ci or ci/o input is shifted into the serial input register on the falling edge of each cclk pulse. after all data is shifted in, the contents of the input shift register are de- coded, and may indicate that a 2nd byte of control data will follow. this second byte may either be de- fined by a second byte-wide cs pulse or may follow the first continuously, i.e. it is not mandatory for cs to return high in between the first and second con- trol bytes. on the falling edge of the 8 th cclk clock pulse in the 2nd control byte the data is loaded into the appropriate programmable register. cs may re- main low continuously when programming succes- sive registers, if desired. however cs should be set high when no data transfers are in progress. to readback interface latch data or status informa- tion from combo iig, the first byte of the appropri- ate instruction is strobed in during the first cs pulse, as defined in table 1. cs must then be taken low for a further 8 cclk cycles, during which the data is shifted onto the co or ci/o pin on the rising edges of cclk. when cs is high the co or ci/o pin is in the high-impedance tri-state, enabling the ci/o pins of many devices to be multiplexed together. thus, to summarize, 2-byte read and write in- structions may use either two 8-bit wide cs pulses or a single 16-bit wide cs pulse. function byte 1 byte 2 76543210 single byte powerCup/down p x x x x x 0 x none write control register readCback control register p p 0 0 0 0 0 0 0 0 0 1 1 1 x x see table 2 see table 2 write latch direction register (ldr) read latch direction register p p 0 0 0 0 1 1 0 0 0 1 1 1 x x see table 4 see table 4 write latch content register (ilr) read latch content register p p 0 0 0 0 0 0 1 1 0 1 1 1 x x see table 5 see table 5 write transmit timeCslot/port readCback transmit timeCslot/port p p 1 1 0 0 1 1 0 0 0 1 1 1 x x see table 6 see table 6 write receive timeCslot/port readCback receive timeCslot/port p p 1 1 0 0 0 0 1 1 0 1 1 1 x x see table 6 see table 6 write transmit gain register read transmit gain register p p 0 0 1 1 0 0 1 1 0 1 1 1 x x see table 7 see table 7 write receive gain register read receive gain register p p 0 0 1 1 0 0 0 0 0 1 1 1 x x see table 8 see table 8 write hybrid balance register 1 1 read hybrid balance register 1 1 p p 0 0 1 1 1 1 0 0 0 1 1 1 x x see table 9 see table 9 write hybrid balance register 1 2 read hybrid balance register 1 2 p p 0 0 1 1 1 1 1 1 0 1 1 1 x x see table 10 see table 10 write hybrid balance register 1 3 read hybrid balance register 1 3 p p 1 1 0 0 0 0 0 0 0 1 1 1 x x table 1: programmable register instructions programmable functions power-up/down control following power-on initialization, power-up and power-down control may be accomplished by writing any of the control instructions listed in ta- ble 1 into combo iig with the "p" bit set to "0" for power-up or "1" for power-down. normally it is recommended that all programmable functions be initially programmed while the device is powered down. power state control can then be included with the last programming instruction or the sepa- rate single-byte instruction. any of the program- mable registers may also be modified while the device is powered-up or down be setting the "p" bit as indicated. when the power up or down con- trol is entered as a single byte instruction, bit one (1) must be set to a 0. when a power-up command is given, all de-acti- vated circuits are activated, but the tri-state pcm output(s), d x 0 (and d x 1), will remain in the high impedance state until the second fs x pulse after power-up. notes: 1. bit 7 of bytes 1 and 2 is always the first bit clocked into or out of the ci, co or ci/co pin. 2. "p" is the power-up/down control bit, see "power-up" section ("0" = power up "1" = power down). ts5070 - ts5071 8/32
control register instruction the first byte of a read or write instruction to the control register is as shown in table 1. the second byte functions are detailed in table 2. master clock frequency selection a master clock must be provided to combo iig for operation of the filter and coding/decoding functions. the mclk frequency must be either 512 khz, 1.536 mhz, 1.544 mhz, 2.048 mhz, or 4.096 mhz and must be synchronous with bclk. bits f1 and f0 (see table 2) must be set during initialization to select the correct internal divider. coding law selection bits "ma" and "ia" in table 2 permit the selection of m 255 coding or a-law coding with or without even-bit inversion. analog loopback analog loopback mode is entered by setting the "al" and "dl" bits in the control register as shown in table 2. in the analog loopback mode, the trans- mit input vf x i is isolated from the input pin and in- ternally connected to the vf r o output, forming a loop from the receive pcm register back to the transmit pcm register. the vf r o pin remains ac- tive, and the programmed settings of the transmit and receive gains remain unchanged, thus care must be taken to ensure that overload levels are not exceeded anywhere in the loop. hybrid balancing must be disabled for meaning ful analog loopback function. digital loopback digital loopback mode is entered by setting the "dl" bit in the control register as shown in table 2. bit number function 76543210 f1 f0 ma ia dn dl al pp 0 0 1 1 0 1 0 1 mclk = 512 khz mclk = 1. 536 or 1. 544 mhz mclk = 2. 048 mhz * mclk = 4. 096 mhz 0 1 1 x 0 1 select m . 255 law * aClaw, including even bit inversion aClaw, no even bit inversion 0 1 delayed data timing nonCdelayed data timing * 0 1 0 0 x 1 normal operation * digital loopback analog loopback 0 1 power amp enabled in pdn power amp disabled in pdn * table 2: control register byte 2 functions table 3: coding law conventions. m255 law msb lsb true a-law with even bit inversion msb lsb a-law without even bit inversion msb lsb v in = +full scale100000001010101011111111 v in = 0v 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 v in = -full scale000000000010101001111111 note: the msb is always the first pcm bit shifted in or out of combo iig. (*) state at power-on initialization (bit 4 = 0) ts5070 - ts5071 9/32
this mode provides another stage of path verifica- tion by enabling data written into the receive pcm register to be read back from that register in any transmit time-slot at d x 0 or d x 1. for analog loopback as well as for digital loop- back pcm decoding continues and analog output appears at vf r o. the output can be disabled by pro gramming "no output" in the receive gain register (see table 8). interface latch directions immediately following power-on, all interface latches assume they are inputs, and therefore all il pins are in a high impedance state. each il pin may be individually programmed as a logic input or output by writing the appropriate instruction to the ldr, see table 1 and 4. bits l 5 -l 0 must be set by writing the specific instruction to the ldr with the l bits in the second byte set as specified in table 4. unused interface latches should be programmed as outputs. for the ts5071, l5 should always be programmed as an output. (*) state at power-on initilization. note: l5 should be programmed as an output for the ts5071. interface latch states interface latches configured as outputs assume the state determined by the appropriate data bit in the 2-byte instruction written to the latch content register (ilr) as shown in tables 1 and 5. latches configured as inputs will sense the state applied by an external source, such as the off- hook detect output of a slic. all bits of the ilr, i.e. sensed inputs and the programmed state of outputs, can be read back in the 2nd byte of a read from the ilr. it is recommended that, dur- ing initialization, the state of il pins to be config- ured as outputs should first be programmed, fol- lowed immediately by the latch direction register. time-slot assignment combo iig can operate in either fixed time-slot or time-slot assignment mode for selecting the trans- mit and receive pcm time-slots. following power- on, the device is automatically in non-delayed tim- ing mode, in which the time-slot always begins with the leading (rising) edge of frame sync inputs fs x and fs r . time-slot assignment may only be used with delayed data timing : see figure 6. fs x and fs r may have any phase relationship with each other in bclk period increments. bit number 76543210 l0 l1 l2 l3 l4 l5 x x table 4: byte 2 function of latch direction register l n bit il direction 0 1 input * output bit number function 7 en 6 ps (note 1) 5 t5 (note 2) 4 t4 3 t3 2 t2 1 t1 0 t0 0x x xxxxx disable d x outputs (transmit instruction) * disable d r inputs (receive instruction) * 10 assign one binary coded time-slot from 0C63 assign one binary coded time-slot from 0C63 enable d x 0 output, disable d x 1 output (transmit instruction) enable d r 0 input, disable d r 1 input (receive instruction) 11 assign one binary coded time-slot from 0C63 assign one binary coded time-slot from 0C63 enable d x 1 output, disable d x 0 output (transmit instruction) enable d r 1 input, disable d r 0 input (receive instruction) table 6: byte 2 of time-slot and port assignment instructions bit number 76543210 d0 d1 d2 d3 d4 d5 x x table 5: interface latch data bit order notes: 1. the "ps" bit must always be set to 0 for the ts5071. 2. t5 is the msb of the time-slot assignment. (*) state at power-on initialization ts5070 - ts5071 10/32
alternatively, the internal time-slot assignment counters and comparators can be used to access any time-slot in a frame, using the frame sync inputs as marker pulses for the beginning of transmit and receive time-slot 0. in this mode, a frame may con- sist of up to 64 time-slots of 8 bits each. a time-slot is assigned by a 2-byte instruction as shown in table 1 and 6. the last 6 bits of the second byte indicate the selected time-slot from 0-63 using straight bi- nary notation. a new assignment becomes active on the second frame following the end of the chip select for the second control byte. the "en" bit al- lows the pcm inputs d r 0/1 or outputs d x 0/1 as ap- propriate, to be enabled or disabled. time-slot assignment mode requires that the fs x and fs r pulses must conform to the delayed timing format shown in figure 6. port selection on the ts5070 only, an additional capability is available : 2 transmit serial pcm ports, d x 0 and d x 1, and 2 receive serial pcm ports, d r 0 and d r 1, are provided to enable two-way space switching to be implemented. port selections for transmit and receive are made within the appropriate time-slot assignment instruction using the "ps" bit in the sec- ond byte. on the ts5071, only ports d x 0 and d r 0 are avail- able, therefore the "ps" bit must always be set to 0 for these devices. table 6 shows the format for the second byte of both transmit and receive time-slot and port assign- ment instructions. transmit gain instruction byte 2 the transmit gain can be programmed in 0.1 db steps by writing to the transmit gain register as defined in tables 1 and 7. this corresponds to a range of 0 dbm0 levels at vf x i between 1.619 vrms and 0.087 vrms (equivalent to + 6.4 dbm to C 19.0 dbm in 600 w ). to calculate the binary code for byte 2 of this in- struction for any desired input 0 dbm0 level in vrms, take the nearest integer to the decimal number given by : and convert to the binary equivalent. some exam- ples are given in table 7. bit number 0dbm0 test leve at vf x i 7 6 5 4 3 2 1 0 in dbm (into 600 w ) in vrms (approx.) 00000000 no output 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 C 19 C 18.9 0.087 0.088 10111111 0 0.775 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 +6.3 +6.4 1.60 1.62 table 7: byte 2 of transmit gain instructions. (*) state at power initialization receive gain instruction byte 2 the receive gain can be programmed in 0.1 db steps by writing to the receive gain register as de- fined in table 1 and 8. note the following restriction on output drive capability : a) 0 dbm0 levels 8.1dbm at vf r o may be driven into a load of 3 15 k w to gnd, b) 0 dbm0 levels 7.6dbm at vf r o may be driven into a load of 3 600 w to gnd, c) 0 dbm levels 6.9dbm at vf r o may be driven into a load of 3 300 w to gnd. to calculate the binary code for byte 2 of this in- struction for any desired output 0 dbm0 level in vrms, take the nearest integer to the decimal num- ber given by : a n d convert to the binary equivalent. some exam- ples are given in table 8. 200 x log 10 (v/ ? ` ` 6 ) + 191 200 x log 10 (v/ ? ` ` 6 ) + 174 ts5070 - ts5071 11/32
hybrid balance filter the hybrid balance filter on combo iig is a programmable filter consisting of a second-order bi-quad section, hybal1, followed by a first-order section, hybal2, and a programmable attenuator. either of the filter sections can be bypassed if only one is required to achieve good cancellation. a selectable 180 degree inverting stage is in- cluded to compensate for interface circuits which also invert the transmit input relative to the re- ceive output signal. the bi-quad is intended mainly to balance low frequency signals across a transformer slic, and the first order section to balance midrange to higher audio frequency sig- nals. the attenuator can be programmed to com- pensate for vf r o to vf x i echos in the range of -2.5 to C 8.5 db. as a bi-quad, hybal1 has a pair of low frequency zeroes and a pair of complex conjugate poles. when configuring the bi-quad, matching the phase of the hybrid at low to midband frequencies is most critical. once the echo path is correctly balanced in phase, the magnitude of the cancella- tion signal can be corrected by the programmable attenuator. the bi-quad mode of hybal1 is most suitable for balancing interfaces with transformers having high inductance of 1.5 henries or more. an alternative configuration for smaller transformers is available by converting hybal1 to a simple first-order section with a single real low frequency pole and 0 hz zero. in this mode, the pole/zero frequency may be pro- grammed. many line interfaces can be adequately balanced by use of the hybal1 section only, in which case the hybal2 filter should be de-selected to bypass it. hybal2, the higher frequency first-order section, is provided for balancing an electronic slic, and is also helpful with a transformer slic in providing additional phase correction for mid and high-band frequencies, typically 1 khz to 3.4 khz. such a correction is particularly useful if the test balance impedance includes a capacitor of 100 nf or less, such as the loaded and non-loaded loop test net- works in the united states. independent place- ment of the pole and zero location is provided. bit state function 7 0 disable hybrid balance circuit completely. no internal cancellation is provided. * 1 enable hybrid balance cancellation path 6 0 phase of the internal cancellation signal assumes inverted phase of the echo path from vf r o to vf x i. 1 phase of the internal cancellation signal assumes no phase inversion in the line interface. 5 0 bypass hybal 2 filter section 1 enable hybal 2 filter section g4Cg0 attenuation adjustment for the magnitude of the cancellation signal. range is C 2.5 db (00000) to C 8.5 db (11000) table 9: hybrid balance register 1 byte 2 instruction. notes: 1. maximum level into 300 w ; 2. maximum level into 600 w ; 3. r l 3 15k w (*) state at power on initialization (*) state at power on initialization setting = please refer to software ts5077 2 bit number 0dbm0 test leve at vf r 0 7 6 5 4 3 2 1 0 in dbm (into 600 w ) in vrms (approx.) 00000000 no output 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 C 17.3 C 17.2 0.106 0.107 10101110 0 0.775 1 1 1 1 0 0 1 1 + 6.9 (note 1) 1.71 1 1 1 1 1 0 1 0 + 7.6 (note 2) 1.86 1 1 1 1 1 1 1 1 + 8.1 (note 3) 1.07 table 8: byte 2 of receive gain instructions. ts5070 - ts5071 12/32
figure 1 shows a simplified diagram of the local echo path for a typical application with a trans- former interface. the magnitude and phase of the local echo signal, measured at vf x i, are a function of the termination impedance z t , the line trans- former and the impedance of the 2 w loop, z l . if the impedance reflected back into the transformer pri- mary is expressed as z l then the echo path trans- fer function from vf r o to vf x i is : h(w) = z l /(z t + z l ) (1) figure 1: simplified diagram of hybrid balance circuit programming the filter on initial power-up the hybrid balance filter is dis- abled. before the hybrid balance filter can be pro- grammed it is necessary to design the transformer and termination impedance in order to meet system 2 w input return loss specifications, which are nor- mally measured against a fixed test impedance (600 or 900 w in most countries). only then can the echo path be modeled and the hybrid balance filter programmed. hybrid balancing is also measured against a fixed test impedance, specified by each national telecom administration to provide ade- quate control of talker and listener echo over the majority of their network connections. this test im- pedance is z l in figure 1. the echo signal and the degree of transhybrid loss obtained by the pro- grammable filter must be measured from the pcm digital input d r 0, to the pcm digital output d x 0, either by digital test signal analysis or by conversion back to analog by a pcm codec/filter. three registers must be programmed in combo iig to fully configure the hybrid balance filter as follows : register 1: select/de-select hybrid balance filter; invert/non-invert cancellation signal; select/de-select hybal2 filter section; attenuator setting. register 2: select/de-select hybal1 filter; set hybal1 to bi-quad or 1st order; program pole and zero frequency. register 3 : program pole fr equency in hybal2 filter; program zero frequency in hybal2 filter; settings = please refer to software ts5077-2. standard filter design techniques may be used to model the echo path (see equation (1)) and design a matching hybrid balance filter configuration. alter- natively, the frequency response of the echo path can be measured and the hybrid balance filter pro- grammed to replicate it. an hybrid balance filter design guide and soft- ware optimization program are available under li- cense from sgs-thomson microelectronics (or- der ts5077-2). bit number function 76543210 0 0 0 0 0 0 0 0 by pass hybal 1 filter x x x x x x x x pole/zero setting table 10: hybrid balance register 2 byte 2 in- structions ts5070 - ts5071 13/32
application information figure 2 shows a typical application of the ts5070 together with a transformer slic. the design of the transformer is greatly simplified due to the on-chip hybrid balance cancellation filter. only one single secondary winding is required (see application note an.091 - designing a subscriber line card module using the ts5070/combo iig). figures 3 and 4 show an arrangement with sgs- thomson monolithic slics. power supplies while the pins of the ts5070 and ts5071/combo iig devices are well protected against electrical misuse, it is recommended that the standard cmos practice of applying gnd to the device be- fore any other connections are made should always be followed. in applications where the printed circuit card may be plugged into a hot socket with power and clocks already present, an extra long ground pin on the connector should be used and a schottky diode connected between v ss and gnd. to mini- mize noise sources all ground connections to each device should meet at a common point as close as possible to the gnd pin in order to prevent the in- teraction of ground return currents flowing through a common bus impedance. power supply decou- pling capacitors of 0.1 m f should be connected from this common device ground point to v cc and v ss as close to the device pins as possible. v cc and v ss should also be decoupled with low effective series resis-tance capacitors of at least 10 m f located near the card edge connector. ts5070 - ts5071 14/32
figure 2: transformer slic + combo iig. ts5070 - ts5071 15/32
figure 4: interface with l3092 + l3000 silicon slic. l3092 l3000 ts5070 - ts5071 16/32
electrical operating characteristics unless otherwise noted, limits in bold characters are guaranteed for v cc = + 5 v 5 % ; v ss = C 5 v 5 %. t a = -40 c to 85 c by correlation with 100% electrical testing at t a = 25 c. all other limits are assured by correlation with other production tests and/or product design and characterisation. all signals referenced to gnd. typicals specified at v cc = + 5 v, v ss = - 5 v, t a = 25 c. digital interface symbol parameter min. typ. max. unit v il input low voltage all digital inputs (dc measurement) 0.7 v v ih input high voltage all digital inputs (dc measurement) 2.0 v v ol output low voltage d x 0 and d x 1, ts x 0, ts x 1 and co, i l = 3.2ma all other digital outputs, i l = 1ma 0.4 v v oh output high voltage dx0 and dx1 and co, i l = -3.2ma all other digital outputs except ts x , i l = -1ma all digital outputs, i l = -100 m a 2.4 v cc -0.5 v v i il input low current all digital inputs (gnd < v in < v il ) -10 10 m a i ih input high current all digital inputs except mr (v ih < v in < v cc ) -10 10 m a i ih input high current on mr -10 100 m a i oz output current in high impedance state (tri-state) dx0 and dx1, co and ci/o (as an input) il5-il0 as inputs (gnd < v o < v cc ) -10 10 m a analog interface symbol parameter min. typ. max. unit i vfxi input current vf x i (-3.3v < vf x i < 3.3v) -10 10 m a r vfxi input resistance vf x i (-3.3v < vf x i < 3.3v) 390 620 k w vos x input offset voltage at vf x i 0dbm0 = -19dbm 0dbm0 = +6.4dbm 10 200 mv mv rl vfro load resistance at vf r o 0dbm0 = 8.1dbm 0dbm0 = 7.6dbm 0dbm0 = 6.9dbm 15 600 300 k w w w cl vfro load capacitance clvfro from vfro to gnd 200 pf ro vfro output resistance vfro (steady zero pcm code applied to dr0 or d r 1) 13 w v osr output offset voltage at vf r o (alternating zero pcm code applied to d r 0 or d r 1, 0dbm0 = 8.1dbm) - 200 200 mv ts5070 - ts5071 17/32
timing specifications unless otherwise noted, limits in bold characters are guaranteed for v cc = + 5 v 5 %; v ss = -5v 5 % . t a = -40 c to 85 c by correlation with 100 % elec- trical testing at t a = 25 c. all other limits are as- sured by correlation with other production tests and/or product design and characterization. all sig- nals referenced to gnd. typicals specified at v cc = + 5 v, v ss = -5 v, t a = 25 c. all timing pa- rameters are measured at v oh = 2.0 v and v ol = 0.7 v. see definitions and timing conventions section for test methods information. electrical operating characteristics (continued) power dissipation symbol parameter min. typ. max. unit icc0 power down current (cclk, ci/o, ci = 0.4v, cs = 2.4v) interface latches set as outputs with no load all over inputs active, power amp disabled 0.3 1.5 ma -iss0 power down current (as above) 0.1 0.3 ma icc1 power up current (cclk, ci/o, ci = 0.4v, cs = 2.4v) no load on power amp interface latches set as outputs with no load 7 11 ma -iss1 power up current (as above) 7 11 ma icc2 power down current with power amp enabled 2 4 ma -iss2 power down current with power amp enabled 2 4 ma master clock timing symbol parameter min. typ. max. unit f mclk frequency of mclk (selection of frequency is programmable, see table 2) 512 1.536 1.544 2.048 4.096 khz mhz mhz mhz mhz t wmh period of mclk high (measured from v ih to v ih , see note 1) 80 ns t wml period of mclk low (measured from v il to v il , see note 1 ) 80 ns t rm rise time of mclk (measured from v il or v ih )30ns t fm fall time of mclk (measured from v ih to v il )30 t hbm hold time, bclk low to mclk high (ts5070 only) 50 ns t wfl period of fs x or fs r low (measured from v il to v il ) 1 (*) (*) mclk period ts5070 - ts5071 18/32
timing specifications (continued) pcm interface timing symbol parameter min. typ. max. unit f bclk frequency of bclk (may vary from 64khz to 4.096mhz in 8khz increments, ts5070 only) 64 4096 khz t wbh period of bclk high (measured from v ih to v ih ) 80 ns t wbl period of bclk low (measured from v il to v il ) 80 ns t rb rise time of bclk (measured from v il to v ih )30ns t fb fall time of bclk (measured from v ih to v il )30ns t hbf hold time, bclk low to fs x/r high or low 30 ns t sfb setup time fs x/r high to bclk low 30 ns t dbd delay time, bclk high to data valid (load = 100pf plus 2 lsttl loads) 80 ns t dbz delay time from bclk8 low to dx disabled (if fsx already low); fsx low to dx disabled (if bclk8 low); bclk9 high to dx disabled (if fsx still high) 15 80 ns t dbt delay time from bclk and fsx both high to tsx low (load = 100pf plus 2 lsttl loads) 60 ns t zbt delay time from bclk8 low to tsx disabled (if fsx already low); fsx low to tsx disabled (if bclk8 low); bclk9 high to tsx disabled (if fsx still high); 15 60 ns t dfd delay time, fsx high to data valid (load = 100pf plus 2 lsttl loads, applies if fsx rises later than bclk rising edge in non- delayed data mode only) 80 ns t sdb setup time, d r 0/1 valid to bclk low 30 ns t hbd hold time, bclk low to dr0/1 invalid 20 ns figure 5: non delayed data timing (short frame mode) ts5070 - ts5071 19/32
figure 6: delayed data timing (short frame mode) serial control port timing symbol parameter min. typ. max. unit f cclk frequency of cclk 2.048 mhz t wch period of cclk high (measured from v ih to v ih ) 160 ns t wcl period of cclk low (measured from v il to v il ) 160 ns t rc rise time of cclk (measured from v il to v ih )50ns t fc fall time of cclk (measured from v ih to v il )50ns t hcs hold time, cclk low to cs low (cclk1) 10 ns t hsc hold time, cclk low to cs high (cclk8) 100 ns t ssc setup time, cs transition to cclk low 70 ns t ssco setup time, cs transition to cclk high (to insure co is not enabled for single byte) 50 ns t sdc setup time, ci (ci/o) data in to cclk low 50 ns t hcd hold time, cclk low to ci (ci/o) invalid 50 ns t dcd delay time, cclk high to co (ci/o) data out valid (load = 100 pf plus 2 lsttl loads) 80 ns t dsd delay time, cs low to co (ci/o) valid (applies only if separate cs used for byte 2) 80 ns t ddz delay time, cs or cclk9 high to co (ci/o) high impedance (applies to earlier of cs high or cclk9 high) 15 80 ns interface latch timing symbol parameter min. typ. max. unit t slc setup time, i l valid to cclk 8 of byte 1 low. i l as input 100 ns t hcl hold time, i l valid from cclk 8 of byte 1 low. i l as input 50 ns t dcl delay time, cclk 8 of byte 2 low to i l . c l = 50 pf. i l as output 200 ns master reset pin symbol parameter min. typ. max. unit t wmr duration of master reset high 1 m s ts5070 - ts5071 20/32
figure 7: control port timing ts5070 - ts5071 21/32
transmission characteristics unless otherwise noted, limits printed in bold characters are guaranteed for v cc = + 5 v 5 % ; v ss = C 5 v 5 %, t a =-40 c to 85 c by correlation with 100 % electrical testing at t a = 25 c (-40 c to 85 c for ts5070-x and ts5071-x). f = 1031.25 hz, vf x i = 0 dbm0, d r 0 or d r 1 = 0 dbm0 pcm code, hybrid balance filter disabled. all other limits are assured by correlation with other production tests and/or product design and char- acterization. all signals referenced to gnd. dbm levels are into 600 ohms. typicals specified at v cc = + 5 v, v ss = -5 v, t a = 25 c. amplitude response symbol parameter min. typ. max. unit absolute levels the nominal 0 dbm 0 levels are : vf x i 0 db tx gain 25.4 db tx gain vf r o 0 db rx attenuation (rl 3 15 k w ) 0.5 db rx attenuation (rl 3 600 w ) 1.2 db rx attenuation (rl 3 300 w ) 25.4 db rx attenuation 1.618 86.9 1.968 1.858 1.714 105.7 vrms mvrms vrms vrms vrms mvrms maximum overload the nominal overload levels are : a-law vf x i 0 db tx gain 25.4 db tx gain vf r o 0 db rx attenuation (r l 3 15 k w ) 0.5 db rx attenuation (r l 3 300 w ) 1.2 db rx attenuation (r l 3 300 w ) 25.4 db rx attenuation m -law vf x i 0 db tx gain 25.4 db tx gain vf r o 0 db rx attenuation (r l 3 15 k w ) 0.5 db rx attenuation (r l 3 600 w ) 1.2 db rx attenuation (r l 3 300 w ) 25.4 db rx attenuation 2.323 124.8 2.825 2.667 2.461 151.7 2.332 125.2 2.836 2.677 2.470 152.3 vrms mvrms vrms vrms vrms mvrms vrms mvrms vrms vrms vrms mvrms gxa transmit gain absolute accurary transmit gain programmed for 0 dbm0 = 6.4 dbm, a-law measure deviation of digital code from ideal 0 dbm0 pcm code at d x 0/1, f = 1031.25 hz t a = 25 c, v cc = 5 v, v ss = C 5 v C 0.15 0.15 db gxag transmit gain variation with programmed gain programmed level from -12.6dbm 0dbm 6.4dbm programmed level from -19dbm 0dbm 12.7dbm note: 0.1db min/max is available as a selected part calculate the deviation from the programmed gain relative to gxa i.e., gxag = gactual C gprog C gxa t a = 25 c, v cc = 5 v, v ss = C 5 v C 0.1 C 0.3 0.1 0.3 db db ts5070 - ts5071 22/32
amplitude response (continued) symbol parameter min. typ. max. unit gxaf transmit gain variation with frequency relative to 1031.25 hz (note 2) -19 dbm < o dbm0 < 6.4 dbm d r 0 (or d r 1) = 0 dbm0 code f = 60hz f = 200 hz f = 300 hz to 3000 hz f = 3400 hz f = 4000 hz f > 4600 hz measure response at alias frequency from 0 khz to 4 khz 0 dbm0 = 6.4 dbm vfxi = -4 dbm0 (note2) f = 62.5 hz f = 203.125 hz f = 2093.750 hz f = 2984.375 hz f = 3296.875 hz f = 3406.250 hz f = 3984.375 hz f = 5250 hz, measure 2750 hz f = 11750hz, measure 3750 hz f = 49750 hz, measure 1750 hz -1.8 -0.15 -0.7 -1.7 -0.15 -0.15 -0.15 -0.74 -26 -0.1 0.15 0 -14 -32 db db db db db db db db db db db db db db db db gxat transmit gain variation with temperature measured relative to gxa, vcc = 5v, vss = -5v -19dbm < 0dbm < 6.4dbm -0.1 0.1 db gxav transmit gain variation with supply v cc = 5v 5%, v ss = -5v 5% measured relative to gxa t a = 25 c, o dbm0 = 6.4dbm -0.05 0.05 db gxal transmit gain variation with signal level sinusoidal test method, reference level = 0 dbm0 vf x i = -40 dbm0 to + 3 dbm0 vf x i = -50 dbm0 to -40 dbm0 vf x i = -55 dbm0 to -50 dbm0 -0.2 -0.4 -1.2 0.2 0.4 1.2 db db db gra receive gain absolute accuracy 0 dbm0 = 8.1 dbm, a-law apply 0 dbm0 pcm code to d r 0 or d r 1 measure vf r o, f =1015.625hz t a = 25 c, v cc = 5v, v ss = -5v -0.15 0.15 db grag receive gain variation with programmed gain programmed level from -10.9dbm 0dbm 8.1dbm programmed level from -17.3dbm 0dbm -11dbm note: 0.1db min/max is available as a selected part calculate the deviation from the programmed gain relative to gra i.e. grag = gactual - gprog - gra t a = 25 c, v cc = 5v, v ss = -5v -0.1 -0.3 0.1 0.3 db db -24.9 -0.1 0.15 0.15 0.15 0 -13.5 -32 -32 -32 ts5070 - ts5071 23/32
amplitude response (continued) symbol parameter min. typ. max. unit grat receive gain variation with temperature measure relative to gra v cc = 5v, v ss = -5v -17dbm < 0dbm0 < 8.1dbm - 0.1 0.1 db grav receive gain variation with supply measured relative to gra v cc = 5v 5%, v ss = -5v 5% t a = 25 c, 0dbm 0 = 8.1 dbm -0.05 0.05 db graf receive gain variation with frequency relative to 1015.625 hz, (note 2) d r 0 or d r 1 = 0 dbm0 code -17.3dbm < 0 dbm0 < 8.1dbm f = 200hz f = 300hz to 3000hz f = 3400hz f = 4000hz gr = 0dbm0 = 8.1dbm d r 0 = -4dbm0 relative to 1015.625 (note 2) f = 296.875 hz f = 1906.250hz f = 2812.500hz f = 2984.375hz f = 3406.250hz f = 3984.375hz -0.25 -0.15 -0.7 -0.15 -0.15 -0.15 -0.15 -0.74 0.15 0.15 0 -14 0.15 0.15 0.15 0.15 0 -13.5 db db db db db db db db db db gral receive gain variation with signal level sinusoidal test method reference level = 0dbm0 d r 0 = -40dbm0 to +3dbm0 d r 0 = -50dbm0 to -40dbm0 d r 0 = -55dbm0 to -50dbm0 dr0 = 3.1dbm0 r l = 600 w , 0dbm0 = 7.6dbm r l = 300 w , 0dbm0 = 6.9dbm -0.2 -0.4 -1.2 -0.2 -0.2 0.2 0.4 1.2 0.2 0.2 db db db db db ts5070 - ts5071 24/32
envelope delay distortion with frequency symbol parameter min. typ. max. unit dxa tx delay absolute f = 1600 hz 315 m s dxr tx delay, relative to dxa f = 500 C 600 hz f = 600 C 800 hz f = 800 C 1000 hz f = 1000 C 1600 hz f = 1600 C 2600 hz f = 2600 C 2800 hz f = 2800 C 3000 hz 220 145 75 40 75 105 155 m s m s m s m s m s m s m s dra rx delay, absolute f = 1600 hz 200 m s drr rx delay, relative to dra f = 500 C 1000 hz f = 1000 C 1600 hz f = 1600 C 2600 hz f = 2600 C 2800 hz f = 2800 C 3000 hz C 40 C 30 90 125 175 m s m s m s m s m s ts5070 - ts5071 25/32
noise symbol parameter min. typ. max. unit nxc transmit noise, c message weighted m -law selected (note 3) 0 dbm0 = 6.4dbm 12 15 dbrnc0 nxp transmit noise, psophometric weighted a-law selected (note 3) 0 dbm0 = 6.4dbm -74 -67 dbm0p nrc receive noise, c message weighted m -law selected pcm code is alternating positive and negative zero 8 11 dbrnc0 nrp receive noise, psophometric weighted a-law selected pcm code equals positive zero -82 -79 dbm0p nrs noise, single frequency f = 0hz to 100khz, loop around measurement vf x i = 0vrms -53 dbm0 ppsrx positive power supply rejection transmit v cc = 5v dc + 100mvrms f = 0hz to 4000hz (note 4) f = 4khz to 50khz 30 30 dbp dbp npsrx negative power supply rejection transmit v ss = -5v dc + 100mvrms f = 0hz to 4000hz (note 4) f = 4khz to 50khz 30 30 dbp dbp ppsrr positive power supply rejection receive pcm code equals positive zero v cc = 5v dc + 100mvrms measure vfr0 f = 0hz to 4000hz f = 4khz to 25khz f = 25khz to 50khz 30 40 36 dbp db db npsrr negative power supply rejection receive pcm code equals positive zero v ss = -5v dc + 100mvrms measure vfr0 f = 0hz to 4000hz f = 4khz to 25khz f = 25khz to 50khz 30 40 36 dbp db db sos spurious out-of band signals at the channel output 0dbm0 300hz to 3400hz input pcm code applied at d r 0 (d r 1) relative to f = 1062.5hz 4600hz to 7600hz 7600hz to 8400hz 8400hz to 50000hz -30 -40 -30 db db db ts5070 - ts5071 26/32
distortion symbol parameter min. typ. max. unit stdx signal to total distortion transmit sinusoidal test method half channel level = 3dbm0 level = -30dbm0 to 0dbm0 level = -40dbm0 level = -45dbm0 33 36 30 25 dbp dbp dbp dbp stdr signal to total distortion receive sinusoidal test method half channel level = 3dbm0 level = -30dbm0 to 0dbm0 level = -40dbm0 level = -45dbm0 33 36 30 25 dbp dbp dbp dbp sfdx single frequency distortion transmit -46 db sfdr single frequency distortion receive -46 db imd intermodulation distortion transmit or receive two frequencies in the range 300hz to 3400hz -41 db crosstalk symbol parameter min. typ. max. unit ctx-r transmit to receive crosstalk, 0dbm0 transmit level f = 300 to 3400hz dr = idle pcm code -90 -75 db ctr-x receive to transmit crosstalk, 0dbm0 receive level f = 300 to 3400hz (note 4) -90 -70 db notes: 1. applies only to mclk frequencies 3 1.536 mhz. at 512 khz a 50:50 2 % duty cycle must be used. 2. a multi-tone test technique is used (peak/rms 9.5 db). 3. measured by grounded input at vf x i. 4. ppsrx, npsrx and ctr-x are measured with a C 50 dbm0 activation signal applied to vf x i. a signal is valid if it is above v ih or below v il and invalid if it is between v il and v ih . for the purpose of the specification the following conditions apply : a) all input signals are defined as v il = 0.4 v, v ih = 2.7 v, t r < 10 ns, t f 10 ns b) t r is measured from v il to v ih , t f is measured from v ih to v il c) delay times are measured from the input signal valid to the clock input invalid d) setup times are measured from the data input valid to the clock input invalid e) hold times are measured from the clock signal valid to the data input invalid f) pulse widths are measured from v il to v il or from v ih to v ih ts5070 - ts5071 27/32
definitions and timing conventions definitions v ih vih is the d.c. input level above which an input level is guaranteed to appear as a logical one. this parameter is to be measured by performing a functional test at reduced clock speeds and nominal timing (i.e. not minimum setup and hold times or output strobes), with the high level of all driving signals set to v ih and maximum supply voltages applied to the device. v il vil is the d.c. input level below which an input level is guaranteed to appear as a logical zero the device. this parameter is measured in the same manner as v ih but with all driving signal low levels set to v il and minimum supply voltage applied to the device. v oh voh is the minimmum d.c. output level to which an output placed in a logical one state will converge when loaded at the maximum specified load current. v ol vol is the maximum d.c. output level to which an output placed in a logical zero state will converge when loaded at the maximum specified load current. threshold region valid signal the threshold region is the range of input voltages between v il and v ih . a signal is valid if it is in one of the valid logic states. (i.e. above v ih or below v il ). in timing specifications, a signal is deemed valid at the instant it enters a valid state. invalid signal a signal is invalid if it is not in a valid logic state, i.e., when it is in the threshold region between v il and v ih . in timing specifications, a signal is deemed invalid at the instant it enters the threshold region. timing conventions for the purpose of this timing specifications the following conventions apply : input signals all input signals may be characterized as : v l = 0.4 v, v h = 2.4 v, tr < 10 ns, tf < 10 ns. period the period of the clock signal is designated as tpxx where xx represents the mnemonic of the clock signal being specified. rise time rise times are designated as tryy, where yy represents a mnemonic of the signal whose rise time is being specified, tryy is measured from v il to v ih . fall time fall times are designated as tfyy, where yy represents a mnemonic of the signal whose fall time is being specified, tfyy is measured from v ih to v il . pulse width high the high pulse width is designated as twzzh, where zz represents the mnemonic of the input or output signal whose pulse width is being specified. high pulse width are measured from v ih to v ih . pulse width low the low pulse is designated as twzzl where zz represents the mnemonic of the input or output signal whose pulse width is being specified. low pulse width are measured from v il to v il . setup time setup times are designated as tswwxx where ww represents the mnemonic of the input signal whose setup time is being specified relative to a clock or strobe input represented by mnemonic xx. setup times are measured from the ww valid to xx invalid. hold time hold times are designated as thwwxx where ww represents the mnemonic of the input signal whose hold time is being specified relative to a clock or strobe input represented by the mnemonic xx. hold times are measured from xx valid to ww invalid delay time delay times are designated as tdxxyy [h/l], where xx represents the mnemonic of the input reference signal and yy represents the mnemonic of the output signal whose timing is being specified relative to xx. the mnemonic may optionally be terminated by an h or l to specify the high going or low going transition of the output signal. maximum delay times are measured from xx valid to yy valid. minimum delay times are measured from xx valid to yy invalid. this parameter is tested under the load conditions specified in the conditions column of the timing specifications section of this datasheet. ts5070 - ts5071 28/32
combo ii sales type list ordering number electrical description package marking p acking ts5070fn stdandard selection datasheet december 1997 plcc28 ts5070fn tubes ts5070fntr plcc28 ts 5070fn tape and reel TS5071N pdip20 TS5071N tubes tsw5070fn relaxed selection (gxa, gra, grag, gxag) plcc28 ts5070fn tubes param page conditions min max unit tsw5070fntr plcc28 ts 5070fn tape and reel gxa 22 -- -0.2 0.2 db tsw5071n pdip20 TS5071N tubes gxag 22 -6.3dbm<0dbm0<6.4dbm -0.1 0.1 db -12.7dbm<0dbm0<-6.4dbm -0.2 0.2 db -19dbm<0dbm0<-12.8dbm -0.5 0.5 db gra 23 -- -0.2 0.2 db grag 23 -4.6dbm<0dbm0<8.1dbm -0.1 0.1 db -11dbm<0dbm0<-4.7dbm -0.2 0.2 db -17.3dbm<0dbm0<-11.1dbm -0.5 0.5 db tsp5070fn special selection for grag/gxag plcc28 ts5070fn t ubes param page conditions min max unit tsp5070fntr plcc28 ts5070fn tape and reel gxag 22 all programmed gains -0.1 0.1 db tsp5071n pdip20 TS5071N tubes grag 23 all programmed gains -0.1 0.1 db ts5070 - ts5071 29/32
plcc28 package mechanical data dim. mm inch min. typ. max. min. typ. max. a 12.32 12.57 0.485 0.495 b 11.43 11.58 0.450 0.456 d 4.2 4.57 0.165 0.180 d1 2.29 3.04 0.090 0.120 d2 0.51 0.020 e 9.91 10.92 0.390 0.430 e 1.27 0.050 e3 7.62 0.300 f 0.46 0.018 f1 0.71 0.028 g 0.101 0.004 m 1.24 0.049 m1 1.143 0.045 ts5070 - ts5071 30/32
dip20 package mechanical data dim. mm inch min. typ. max. min. typ. max. a1 0.254 0.010 b 1.39 1.65 0.055 0.065 b 0.45 0.018 b1 0.25 0.010 d 25.4 1.000 e 8.5 0.335 e 2.54 0.100 e3 22.86 0.900 f 7.1 0.280 i 3.93 0.155 l 3.3 0.130 z 1.34 0.053 ts5070 - ts5071 31/32
information furnished is believed to be accurate and reliable. however, sgs-thomson microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result f rom its use. no license is granted by implication or otherwise under any patent or patent rights of sgs-thomson microelectronics. specification mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously s upplied. sgs- thomson microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of sgs-thomson microelectronics. ? 1997 sgs-thomson microelectronics C printed in italy C all rights reserved sgs-thomson microelectronics group of companies australia - brazil - canada - china - france - germany - italy - japan - korea - malaysia - malta - morocco - the netherlands - singapore - spain - sweden - switzerland - taiwan - thailand - united kingdom - u.s.a. ts5070 - ts5071 32/32

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