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cy22150 one-pll general-purpose flash-programmable and i 2 c programmable clock generator cypress semiconductor corporation ? 198 champion court ? san jose , ca 95134-1709 ? 408-943-2600 document #: 38-07104 rev. *k revised march 30, 2011 features integrated phase-locked loop (pll) commercial and industrial operation flash programmable field programmable two-wire i 2 c interface low skew, low jitter, high accuracy outputs 3.3 v operation with 2.5 v output option 16-pin tssop benefits internal pll to generate six outputs up to 200 mhz. able to generate custom frequencies from an external crystal or a driven source. performance guaranteed for applications that require an extended temperature range. nonvolatile reprogrammable technology allows easy custom- ization, quick turnaround on design changes and product performance enhancements, and better inventory control. parts can be reprogrammed up to 100 times, reducing inventory of custom parts and providing an easy method for upgrading existing designs. the cy22150 can be programmed at the package level. in-house programming of sample s and prototype quantities is available using the cy3672 development kit. production quantities are available through cypress?s value added distri- bution partners or by using third party programmers from bp microsystems?, hilo systems?, and others. the cy22150 provides an industry standard interface for volatile, system level customizat ion of unique frequencies and options. serial programming and reprogramming allows quick design changes and product enhancements, eliminates inventory of old design parts, and simplifies manufacturing. high performance suited for commercial, industrial, networking, telecom, and other general purpose applications. application compatibility in standard and low power systems. industry standard packaging saves on board space. part number outputs input frequency range output frequency range specifications cy22150kfzxc 6 8 mhz to 30 mhz (external crystal) 1 mhz to 133 mhz (driven clock) 80 khz to 200 mhz (3.3 v) 80 khz to 166.6 mhz (2.5 v) field programmable serially programmable commercial temperature cy22150kfzxi 6 8 mhz to 30 mhz (external crystal) 1 mhz to 133 mhz (driven clock) 80 khz to 166.6 mhz (3.3 v) 80 khz to 150 mhz (2.5 v) field programmable serially programmable industrial temperature logic block diagram i 2 c control vddl avdd vss avss sdat sclk vssl vdd xin xout lclk1 divider pll osc. lclk3 q p vco lclk2 lckl4 clk5 clk6 bank 1 divider bank 2 crosspoint switch i2c interface matrix [+] feedback
cy22150 document #: 38-07104 rev. *k page 2 of 18 contents pin configuration ............................................................. 3 frequency calculation and regi ster definitions ........... 4 default startup condition for the cy22150 .................... 5 frequency calculations and register definitions using the i2c inte rface ................ ........... ...... 5 reference frequency .................................................. 5 pll frequency, q counter [42h(6..0)] ....................... 6 pll frequency, p co unter [40h(1..0)], [41h(7..0)], [42h(7) ..................................................... 6 pll post divider options [0ch(7..0)], [47h(7..0)] ....... 7 charge pump settings [40h(2..0 )] .............................. 7 clock output settings: clksrc ? clock output crosspoint switch matrix [44h(7..0)], [45h(7..0)], [46h(7..6)] ............................. 8 test, reserved, and blank re gisters .......................... 8 i2c interface timing ......................................................... 9 data valid .................................................................... 9 data frame ................................................................. 9 acknowledge pulse ..................................................... 9 applications .................................................................... 11 controlling jitter ........................................................ 11 absolute maximum conditions ..................................... 12 recommended operating conditions .......................... 12 dc electrical characteristics ........................................ 12 ac electrical characteristics ........................................ 13 device characteristics ................................................... 13 ordering information ...................................................... 14 possible configurations ............................................. 14 ordering code definitions ..... .................................... 15 package diagram ............................................................ 15 acronyms ........................................................................ 16 document conventions ................................................. 16 units of measure ....................................................... 16 document history page ................................................. 17 sales, solutions, and legal information ...................... 18 worldwide sales and design s upport ......... .............. 18 products .................................................................... 18 psoc solutions ......................................................... 18 [+] feedback
cy22150 document #: 38-07104 rev. *k page 3 of 18 pin configuration figure 1. 16-pin tssop 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 vss vssl sclk lclk1 xin xout vdd sdat avss lclk3 lclk2 clk6 clk5 avdd vddl lclk4 table 1. pin definitions name number description xin 1 reference input. driven by a crystal (8 mhz to 30 mhz) or external clock (1 mhz to 133 mhz). programmable input load capacitors allow for maximum flexibility in selecting a crystal, regardless of manufacturer, pr ocess, performance, or quality vdd 2 3.3 v voltage supply avdd 3 3.3 v analog voltage supply sdat 4 i 2 c serial data input avss 5 analog ground vssl 6 lclk ground lclk1 7 configurable clock output 1 at v ddl level (3.3 v or 2.5 v) lclk2 8 configurable clock output 2 at v ddl level (3.3 v or 2.5 v) lclk3 9 configurable clock output 3 at v ddl level (3.3 v or 2.5 v) sclk 10 i 2 c serial clock output vddl 11 lclk voltage supply (2.5 v or 3.3 v) lclk4 12 configurable clock output 4 at v ddl level (3.3 v or 2.5 v) vss 13 ground clk5 14 configurable clock output 5 (3.3 v) clk6 15 configurable clock output 6 (3.3 v) xout [1] 16 reference output note 1. float xout if xin is driven by an external clock source. [+] feedback
cy22150 document #: 38-07104 rev. *k page 4 of 18 frequency calculation a nd register definitions the cy22150 is an extremely flexible clock generator with four basic variables that are used to determine the final output frequency. they are the input reference frequency (ref), the internally calculated p and q dividers, and the post divider, which can be a fixed or calculated value. there are three formulas to determine the final output frequency of a cy22150 based design: clk = ((ref * p)/q)/post divider clk = ref/post divider clk = ref. the basic pll block diagram is shown in figure 2 . each of the six clock outputs on the cy22150 has a total of seven output options available to it. there are six post divider options available: /2 (two of these), /3, /4, /div1n and /div2n. div1n and div2n are independently calculated and are applied to individual output groups. the post divider options can be applied to the calculated vco frequency ((ref*p)/q) or to the ref directly. in addition to the six post divider output options, the seventh option bypasses the pll and pa sses the ref directly to the crosspoint switch matrix. figure 2. basic block diagram of cy22150 pll (q+2) vco (2(pb+4)+po) /2 /3 /2 lclk1 lclk2 lclk3 lclk4 clk5 clk6 clksrc crosspoint switch matrix [44h] [44h] [44h,45h] [45h] [45h,46h] div2clk ref pfd divider bank 1 [45h] div1src [och] /4 div2src [47h] divider bank 2 div1n [och] div2n [47h] div1clk /div1n 1 0 1 0 [42h] [40h], [41h], [42h] /div2n qtotal ptotal clkoe [09h] [+] feedback
cy22150 document #: 38-07104 rev. *k page 5 of 18 default startup condi tion for the cy22150 the default (programmed) condition of the device is generally set by the distributor who programs the device using a customer specific jedec file produced by cyclocksrt ? . parts shipped from the factory are blank and unprogrammed. in this condition, all bits are set to 0, all outputs are three-stated, and the crystal oscillator circuit is active. while you can develop your own subroutine to program any or all of the individual registers described in the following pages, it may be easier to use cyclocksrt to produce the required register setting file. the serial interface address of t he cy22150 is 69h. if there is a conflict with any other devices in your system, then this can also be changed using cyclocksrt. frequency calculations and register defini- tions using the i 2 c interface the cy22150 provides an industry standard serial interface for volatile, in-system programming of unique frequencies and options. serial programming and reprogramming allows for quick design changes and product enhancements, eliminates inventory of old design parts, and simplifies manufacturing. the i 2 c interface provides volatile programming. this means when the target system is powered down, the cy22150 reverts to its pre-i 2 c state, as defined above (programmed or unpro- grammed). when the system is powered back up again, the i 2 c registers must be reconfigured again. all programmable registers in the cy22150 are addressed with eight bits and contain eight bits of data. the cy22150 is a slave device with an address of 1101001 (69h). ta b l e 2 lists the i 2 c registers and their definitions. specific register definitions and their al lowable values are listed below. reference frequency the ref can be a crystal or a driven frequency. for crystals, the frequency range must be between 8 mhz and 30 mhz. for a driven frequency, the frequency range must be between 1 mhz and 133 mhz. using a crystal as the reference input the input crystal oscillator of the cy22150 is an important feature because of the flexibility it allows the user in selecting a crystal as a ref source. the input oscillator has programmable gain, allowing maximum compatibility with a reference crystal, regardless of manufacturer, proc ess, performance, and quality. programmable crystal input oscillator gain settings the input crystal oscillator gain (xdrv) is controlled by two bits in register 12h and are set according to ta b l e 3 on page 6. the parameters controlling the gain are the crystal frequency, the internal crystal parasitic resistance (esr, available from the manufacturer), and the capload setting during crystal startup. bits 3 and 4 of register 12h control the input crystal oscillator gain setting. bit 4 is the msb of the se tting, and bit 3 is the lsb. the setting is programmed according to table 3 on page 6. all other bits in the register are reserved and should be programmed as shown in ta b l e 4 on page 6. using an external clock as the reference input the cy22150 also accepts an external clock as reference, with speeds up to 133 mhz. with an external clock, the xdrv (register 12h) bits must be set according to ta b l e 5 on page 6. table 2. summary table ? cy22150 programmable registers register description d7 d6 d5 d4 d3 d2 d1 d0 09h clkoe control 0 0 clk6 clk5 lclk4 lclk3 lclk2 lclk1 och div1src mux and div1n divider div1src div1n(6) div1n(5) div1n(4) d iv1n(3) div1n(2) div1n(1) div1n(0) 12h input crystal oscillator drive control 0 0 1 xdrv(1) xdrv(0) 0 0 0 13h input load capacitor control capload (7) capload (6) capload (5) capload (4) capload (3) capload (2) capload (1) capload (0) 40h charge pump and pb counter 1 1 0 pump(2) pump(1) pump(0) pb(9) pb(8) 41h pb(7) pb(6) pb(5) pb(4) pb(3) pb(2) pb(1) pb(0) 42h po counter, q counter po q(6) q(5) q(4) q(3) q(2) q(1) q(0) 44h crosspoint switch matrix control clksrc2 for lclk1 clksrc1 for lclk1 clksrc0 for lclk1 clksrc2 for lclk2 clksrc1 for lclk2 clksrc0 for lclk2 clksrc2 for lclk3 clksrc1 for lclk3 45h clksrc0 for lclk3 clksrc2 for lclk4 clksrc1 for lclk4 clksrc0 for lclk4 clksrc2 for clk5 clksrc1 for clk5 clksrc0 for clk5 clksrc2 for clk6 46h clksrc1 for clk6 clksrc0 for clk6 111111 47h div2src mux and div2n divider div2src div2n(6) div2n(5) div2n(4) d iv2n(3) div2n(2) div2n(1) div2n(0) [+] feedback
cy22150 document #: 38-07104 rev. *k page 6 of 18 input load capacitors input load capacitors allow the user to set the load capacitance of the cy22150 to match the input load capacitance from a crystal. the value of the input load capacitors is determined by 8 bits in a programmable register [13h]. total load capacitance is determined by the formula: capload = (c l ? c brd ? c chip )/0.09375 pf where: c l = specified load capaci tance of your crystal. c brd = the total board capacitance, due to external capacitors and board trace capacitance. in cyclocksrt, this value defaults to 2 pf. c chip = 6 pf. 0.09375 pf = the step resolution available due to the 8-bit register. in cyclocksrt, only the crystal capacitance (c l ) is specified. c chip is set to 6 pf and c brd defaults to 2 pf. if your board capacitance is higher or lower than 2 pf, the formula given earlier is used to calculate a new capload value and programmed into register 13h. in cyclocksrt, enter the crystal capacitance (c l ). the value of capload is determined automatically and programmed into the cy22150. through the sdat and sclk pins, the value can be adjusted up or down if your board capacitance is greater or less than 2 pf. for an external clock source, capload defaults to 0. see table 6 on page 7 for capload bit locations and values. the input load capacitors are placed on the cy22150 die to reduce external component cost. these capacitors are true parallel-plate capacitors, designed to reduce the frequency shift that occurs when nonlinear load capacitance is affected by load, bias, supply, and temperature changes. pll frequency, q counter [42h(6..0)] the first counter is known as the q counter. the q counter divides ref by its calculated value. q is a 7 bit divider with a maximum value of 127 and minimum value of 0. the primary value of q is determined by 7 bits in register 42h (6..0), but 2 is added to this register value to achieve the total q, or q total . q total is defined by the formula: q total = q + 2 the minimum value of q total is 2. the maximum value of q total is 129. register 42h is defined in the table. stable operation of the cy2 2150 cannot be guaranteed if ref/q total falls below 250 khz. q total bit locations and values are defined in table 7 on page 7. pll frequency, p counter [4 0h(1..0)], [41h(7..0)], [42h(7) the next counter definition is the p (product) counter. the p counter is multiplied with the (ref/q total ) value to achieve the vco frequency. the product counter, defined as p total , is made up of two internal variables, pb and po. the formula for calcu- lating p total is: p total = (2(pb + 4) + po) pb is a 10-bit variable, defined by registers 40h(1:0) and 41h(7:0). the 2 lsbs of regi ster 40h are the two msbs of variable pb. bits 4..2 of register 40h are used to determine the charge pump settings. the 3 msbs of register 40h are preset and reserved and cannot be changed. po is a single bit variable, defined in register 42h(7). this allows for odd numbers in p total . the remaining seven bits of 42h are used to define the q counter, as shown in table 7 . the minimum value of p total is 8. the maximum value of p total is 2055. to achieve the minimum value of p total , pb and po should both be programmed to 0. to achieve the maximum value of p total , pb should be programmed to 1023, and po should be programmed to 1. table 3. programmable crystal input oscillator gain settings cap register settings 00h ? 80h 80h ? c0h c0h ? ffh effective load capacitance (capload) 6 pf to 12 pf 12 pf to 18 pf 18 pf to 30 pf crystal esr 30 60 30 60 30 60 crystal input frequency 8 to 15 mhz 000101100110 15 to 20 mhz 011001101010 20 to 25 mhz 011010101011 25 to 30 mhz 10 10 10 11 11 n/a table 4. crystal oscillator gain bit locations and values address d7 d6 d5 d4 d3 d2 d1 d0 12h001xdrv(1)xdrv(0)000 table 5. programmable external reference input oscillator drive settings reference frequency 1 to 25 mhz 25 to 50 mhz 50 to 90 mhz 90 to 133 mhz drive setting 00 01 10 11 [+] feedback
cy22150 document #: 38-07104 rev. *k page 7 of 18 stable operation of the cy22150 cannot be guaranteed if the value of (p total *(ref/q total )) is above 400 mhz or below 100 mhz. pll post divider options [0ch(7..0)], [47h(7..0)] the output of the vco is routed through two independent muxes, then to two divider banks to determine the final clock output frequency. the mux determines if the clock signal feeding into the divider banks is the calculated vco frequency or ref. there are two select muxes (div1src and div2src) and two divider banks (divider bank 1 and divider bank 2) used to determine this clock signal. the clock signal passing through div1src and div2src is referred to as div1clk and div2clk, respectively. the divider banks have four unique divider options available: /2, /3, /4, and /divxn. divxn is a variable that can be independently programmed (div1n and div2n) for each of the two divider banks. the minimum value of divxn is 4. the maximum value of divxn is 127. a value of di vxn below 4 is not guaranteed to work properly. div1src is a single bit variable, controlled by register 0ch. the remaining seven bits of register 0ch determine the value of post divider div1n. div2src is a single bit variable, controlled by register 47h. the remaining seven bits of register 47h determine the value of post divider div2n. register 0ch and 47h are defined in ta b l e 8 . charge pump settings [40h(2..0)] the correct pump setting is important for pll stability. charge pump settings are controlled by bi ts (4..2) of register 40h, and are dependent on internal variable pb (see ? pll frequency, p counter[40h(1..0)], [41h(7..0)], [42h(7)] ?). ta b l e 9 on page 7 summarizes the proper charge pump settings, based on ptotal. see table 10 on page 7 for register 40h bit locations and values. although using the above table guarantees stab ility, it is recommended to use the print preview func tion in cyclocksrt to deter mine the correct charge pump settings for optimal jitter performance. pll stability cannot be guaranteed for values below 16 and ab ove 1023. if values above 1023 are needed, use cyclocksrt to determine the best charge pump setting. table 6. input load capacitor register bit settings address d7 d6 d5 d4 d3 d2 d1 d0 13h capload(7) capload(6) capload(5) capload(4) capload(3) capload(2) capload(1) capload(0) table 7. p counter and q counter register definition address d7 d6 d5 d4 d3 d2 d1 d0 40h 1 1 0 pump(2) pump(1) pump(0) pb(9) pb(8) 41h pb(7) pb(6) pb(5) pb(4) pb(3) pb(2) pb(1) pb(0) 42h po q(6) q(5) q(4) q(3) q(2) q(1) q(0) table 8. pll post divider options address d7 d6 d5 d4 d3 d2 d1 d0 0ch div1src div1n(6) div1n(5) div1n(4) div1n(3) div1n(2) div1n(1) div1n(0) 47h div2src div2n(6) div2n(5) div2n(4) div2n(3) div2n(2) div2n(1) div2n(0) table 9. charge pump settings charge pump setti ng ? pump(2..0) calculated p total 000 16 ? 44 001 45 ? 479 010 480 ? 639 011 640 ? 799 100 800 ? 1023 101, 110, 111 do not use ? device will be unstable table 10. register 40h change pump bit settings address d7 d6 d5 d4 d3 d2 d1 d0 40h 1 1 0 pump(2) pump(1) pump(0) pb(9) pb(8) [+] feedback
cy22150 document #: 38-07104 rev. *k page 8 of 18 clock output settings: clksrc ? clock output crosspoint switch matrix [44h(7..0)], [45h(7..0)], [46h(7..6)] every clock output can be defined to come from one of seven unique frequency sources. the clksrc(2..0) crosspoint switch matrix defines which source is attached to each individual clock output. clksrc(2..0) is set in registers 44h, 45h, and 46h. the remainder of register 46h(5:0) must be written with the values stated in the register t able when writing register values 46h(7:6). when div1n is divisible by four, then clksrc(0,1,0) is guaranteed to be rising edge phase-aligned with clksrc(0,0,1). when div1n is six, then clksrc(0,1,1) is guaranteed to be rising edge phase-aligned with clksrc(0,0,1). when div2n is divisible by four, then clksrc(1,0,1) is guaranteed to be rising edge phase-aligned with clksrc(1,0,0). when div2n is divisible by eight, then clksrc(1,1,0) is guaranteed to be rising edge phase-aligned with clksrc(1,0,0). clkoe ? clock output enab le control [09h(5..0)] each clock output has its ow n output enable, controlled by register 09h(5..0). to enable an output, set the corresponding clkoe bit to 1. clko e settings are in table 13 on page 8. the output swing of lclk1 through lclk4 is set by v ddl . the output swing of clk5 and clk6 is set by v dd . test, reserved, and blank registers writing to any of the following regi sters causes the part to exhibit abnormal behavior, as follows. [00h to 08h] ? reserved [0ah to 0bh] ? reserved [0dh to 11h] ? reserved [14h to 3fh] ? reserved [43h] ? reserved [48h to ffh] ? reserved. table 11. clock output setting clksrc2 clksrc1 clksrc0 definition and notes 0 0 0 reference input. 0 0 1 div1clk/div1n. div1n is defined by regist er [och]. allowable values for div1n are 4 to 127. if divider bank 1 is not being used, set div1n to 8. 0 1 0 div1clk/2. fixed /2 divider option. if this option is used, div1n must be divisible by 4. 0 1 1 div1clk/3. fixed /3 divider option. if this option is used, set div1n to 6. 1 0 0 div2clk/div2n. div2n is defined by regist er [47h]. allowable values for div2n are 4 to 127. if divider bank 2 is not being used, set div2n to 8. 1 0 1 div2clk/2. fixed /2 divider option. if this option is used, div2n must be divisible by 4. 1 1 0 div2clk/4. fixed /4 divider option. if this option is used, div2n must be divisible by 8. 1 1 1 reserved ? do not use. table 12. clock output register setting address d7 d6 d5 d4 d3 d2 d1 d0 44h clksrc2 for lclk1 clksrc1 for lclk1 clksrc0 for lclk1 clksrc2 for lclk2 clksrc1 for lclk2 clksrc0 for lclk2 clksrc2 for lclk3 clksrc1 for lclk3 45h clksrc0 for lclk3 clksrc2 for lclk4 clksrc1 for lclk4 clksrc0 for lclk4 clksrc2 for clk5 clksrc1 for clk5 clksrc0 for clk5 clksrc2 for clk6 46h clksrc1 for clk6 clksrc0 for clk6 111111 table 13. clkoe bit setting address d7 d6 d5 d4 d3 d2 d1 d0 09h 0 0 clk6 clk5 lclk4 lclk3 lclk2 lclk1 [+] feedback
cy22150 document #: 38-07104 rev. *k page 9 of 18 i2c interface timing the cy22150 uses a two-wire i 2 c-interface that operates up to 400 kbits/second in read or write mode. the basic write serial format is as follows. start bit; seven-bit device address (da); r/w bit; slave clock acknowledge (ack); eight-bit memory address (ma); ack; eight-bit data; ack; eight-bit data in ma + 1 if desired; ack; eight-bit data in ma+2; ack; and so on until stop bit.the basic serial format is illustrated in figure 4 on page 9. data valid data is valid when the clock is high, and may only be transi- tioned when the clock is low, as illustrated in figure 3 . data frame every new data frame is indicated by a start and stop sequence, as illustrated in figure 5 on page 10. start sequence ? start frame is indicated by sdat going low when sclk is high. every time a start signal is given, the next eight-bit data must be the device address (seven bits) and a r/w bit, followed by register address (eight bits) and register data (eight bits). stop sequence ? stop frame is indicated by sdat going high when sclk is high. a stop frame frees the bus for writing to another part on the same bus or writing to another random register address. acknowledge pulse during write mode, the cy22150 responds with an ack pulse after every eight bits. this is accomplished by pulling the sdat line low during the n*9 th clock cycle, as illustrated in figure 6 on page 10. (n = the number of eight-bit segments transmitted.) during read mode, the ack pulse after the data packet is sent is generated by the master . figure 3. data valid and data transition periods sdat sclk data valid transition to next bit clk low clk high v ih v il t su t dh figure 4. data frame architecture sdat write start signal device address 7-bit r/w = 0 1-bit 8-bit register address slave 1-bit ack slave 1-bit ack 8-bit register data stop signal multiple contiguous registers slave 1-bit ack 8-bit register data (xxh) (xxh) (xxh+1) slave 1-bit ack 8-bit register data (xxh+2) slave 1-bit ack 8-bit register data (ffh) slave 1-bit ack 8-bit register data (00h) slave 1-bit ack slave 1-bit ack sdat read start signal device address 7-bit r/w = 0 1-bit 8-bit register address slave 1-bit ack slave 1-bit ack 7-bit device stop signal multiple contiguous registers 1-bit r/w = 1 8-bit register data (xxh) address (xxh) master 1-bit ack 8-bit register data (xxh+1) master 1-bit ack 8-bit register data (ffh) master 1-bit ack 8-bit register data (00h) master 1-bit ack master 1-bit ack [+] feedback
cy22150 document #: 38-07104 rev. *k page 10 of 18 figure 5. start and stop frame figure 6. frame format (device address, r/w , register address, register data sdat sclk start transition to next bit stop sdat sclk da6 da5da0 r/w ack ra7 ra6 ra1 ra0 ack stop start ack d7 d6 d1 d0 +++ + + + parameter description min max unit f sclk frequency of sclk ? 400 khz start mode time from sda low to scl low 0.6 ? s clk low sclk low period 1.3 ? s clk high sclk high period 0.6 ? s t su data transition to sclk high 100 ? ns t dh data hold (sclk low to data transition) 100 ? ns rise time of sclk and sdat ? 300 ns fall time of sclk and sdat ? 300 ns stop mode time from sclk high to sdat high 0.6 ? s stop mode to start mode 1.3 ? s [+] feedback
cy22150 document #: 38-07104 rev. *k page 11 of 18 applications controlling jitter jitter is defined in many ways including: phase noise, long term jitter, cycle to cycle jitter, period jitter, absolute ji tter, and deter- ministic. these jitter terms are usually given in terms of rms, peak to peak, or in the case of phase noise dbc/hz with respect to the fundamental frequency. power supply noise and clock output loading are two major system sources of clock jitter. po wer supply noise is mitigated by proper power supply decoupling (0.1 f ceramic cap 0.25?) of the clock and ensuring a low impedance ground to the chip. reducing capacitive clock output loading to a minimum lowers current spikes on the clock edges and thus reduces jitter. reducing the total number of active outputs also reduce jitter in a linear fashion. however, it is better to use two outputs to drive two loads than one output to drive two loads. the rate and magnitude that the pll corrects the vco frequency is directly related to jitter perform ance. if the rate is too slow, then long term jitter and phase noise is poor. therefore, to improve long term jitter and phase noise, reducing q to a minimum is advisable. this technique increases the speed of the phase frequency detector which in turn drive the input voltage of the vco. in a similar manner increasing p till the vco is near its maximum rated speed also decreases long term jitter and phase noise. for example: input reference of 12 mhz; desired output frequency of 33.3 mhz. the following solution is possible: set q = 3, p = 25, post div = 3. howeve r, the best jitter results is q = 2, p = 50, post div = 9. for more information, contact your local cypress field applica- tions engineer. figure 8. duty cycle definition; dc = t2/t1 f igure 9. rise and fall time definitions figure 10. peak-to-peak jitter figure 7. test circuit 0.1 mf v dd 0.1 mf av dd clk out c load gnd outputs v ddl 0.1 f t3 clk 80% 20 % t4 t1 t2 clk 50% 50% t6 [+] feedback
cy22150 document #: 38-07104 rev. *k page 12 of 18 absolute maximum conditions parameter description min max unit v dd supply voltage ?0.5 7.0 v v ddl i/o supply voltage ?0.5 7.0 v t s storage temperature [2] ?65 125 c t j junction temperature ? 125 c package power dissipation ? commercial temp ? 450 mw package power dissipation ? industrial temp ? 380 mw digital inputs av ss ? 0.3 av dd + 0.3 v digital outputs referred to v dd v ss ? 0.3 v dd + 0.3 v digital outputs referred to v ddl v ss ? 0.3 v ddl +0.3 v esd static discharge voltage per mil-std-833, method 3015 ? 2000 v recommended oper ating conditions parameter description min typ. max unit v dd operating voltage 3.135 3.3 3.465 v vddl hi [3] operating voltage 3.135 3.3 3.465 v vddl lo [3] operating voltage 2.375 2.5 2.625 v t ac ambient commercial temp 0 ? 70 c t ai ambient industrial temp ?40 ? 85 c c load max. load capacitance, v dd /v ddl = 3.3 v ? ? 15 pf c load max. load capacitance, v ddl = 2.5 v ? ? 15 pf f refd driven ref 1 ? 133 mhz f refc crystal ref 8 ? 30 mhz t pu power up time for all vdds to reach minimum specified voltage (power ramps must be monotonic) 0.05 ? 500 ms dc electrical characteristics parameter [4] name description min typ. max unit i oh3.3 output high current v oh = v dd ? 0.5, v dd /v ddl = 3.3 v (sink) 12 24 ? ma i ol3.3 output low current v ol = 0.5, v dd /v ddl = 3.3 v (source) 12 24 ? ma i oh2.5 output high current v oh = v ddl ? 0.5, v ddl = 2.5 v (source) 8 16 ? ma i ol2.5 output low current v ol = 0.5, v ddl = 2.5 v (sink) 8 16 ? ma v ih input high voltage cmos levels, 70% of v dd 0.7 ? ? v dd v il input low voltage cmos levels, 30% of v dd ??0.3v dd c in input capacitance sclk and sdat pins ? ? 7 pf i iz input leakage current sclk and sdat pins ? 5 ? a v hys hysteresis of schmitt triggered inputs sclk and sdat pins 0.05 ? ? v dd i vdd [5,6] supply current av dd /v dd current ? 45 ? ma i vddl3.3 [5,6] supply current v ddl current (v ddl = 3.465 v) ? 25 ? ma i vddl2.5 [5,6] supply current v ddl current (v ddl = 2.625 v) ? 17 ? ma notes 2. rated for 10 years. 3. v ddl is only specified and characterized at 3.3 v 5% and 2.5 v 5%. v ddl may be powered at any value between 3.465 v and 2.375 v. 4. not 100% tested. 5. i vdd currents specified for two clk outputs running at 125 mhz, two lclk outputs running at 80 mhz, and two lclk outputs running at 66.6 mhz. 6. use cyclocksrt to calculate actual i vdd and i vddl for specific output frequency configurations. [+] feedback
cy22150 document #: 38-07104 rev. *k page 13 of 18 ac electrical characteristics parameter [7] name description min typ. max unit t1 output frequency, commercial temp clock output limit, 3.3 v 0.08 (80 khz) ? 200 mhz clock output limit, 2.5 v 0.08 (80 khz) ? 166.6 mhz output frequency, industrial temp clock output limit, 3.3 v 0.08 (80 khz) ? 166.6 mhz clock output limit, 2.5 v 0.08 (80 khz) ? 150 mhz t2 lo output duty cycle duty cycle is defined in figure 8 on page 11; t1/t2 fout < 166 mhz, 50% of v dd 45 50 55 % t2 hi output duty cycle duty cycle is defined in figure 8 ; t1/t2 fout > 166 mhz, 50% of v dd 40 50 60 % t3 lo rising edge slew rate (v ddl = 2.5 v) output clock rise time, 20% to 80% of v ddl . defined in figure 9 0.6 1.2 ? v/ns t4 lo falling edge slew rate (v ddl = 2.5 v) output dlock fall ti me, 80% to 20% of v ddl . defined in figure 9 0.6 1.2 ? v/ns t3 hi rising edge slew rate (v ddl = 3.3 v) output dlock rise time, 20% to 80% of v dd /v ddl . defined in figure 9 0.8 1.4 ? v/ns t4 hi falling edge slew rate (v ddl = 3.3 v) output dlock fall time, 80% to 20% of v dd /v ddl . defined in figure 9 0.8 1.4 ? v/ns t5 [8] skew output-output skew between related outputs ? ? 250 ps t6 [9] clock jitter peak-to-peak period jitter ? 250 ? ps t10 pll lock time ? 0.30 3 ms 7. not 100% tested, guaranteed by design. 8. skew value guaranteed when outputs are generated from the same divider bank. see logic block diagram on page 1 for more information. 9. jitter measurements vary. actual jitter is dependent on xin jitt er and edge rate, number of active outputs, output frequencie s, v ddl , (2.5 v or 3.3 v jitter). device characteristics parameter name value unit ja theta ja 115 c/w complexity transistor count 74,600 transistors [+] feedback
cy22150 document #: 38-07104 rev. *k page 14 of 18 some product offerings are factory programmed customer specific devices with customized part numbers. the possible configura- tions table shows the available device types, but not complete pa rt numbers. contact your local cypress fae or sales representa tive for more information. ordering information ordering code package type operating range operating voltage cy22150kfi 16-pin tssop industrial (?40 to 85c) 3.3 v pb-free CY22150FZXC [11] 16-pin tssop commercial (0 to 70c) 3.3 v CY22150FZXCt [11] 16-pin tssop - tape and reel commercial (0 to 70c) 3.3 v cy22150fzxi [11] 16-pin tssop industrial (?40 to 85c) 3.3 v cy22150fzxit [11] 16-pin tssop - tape and reel industrial (?40 to 85c) 3.3 v cy22150kfzxc 16-pin tssop commercial (0 to 70c) 3.3 v cy22150kfzxct 16-pin tssop - tape and reel commercial (0 to 70c) 3.3 v cy22150kfzxi 16-pin tssop industrial (?40 to 85c) 3.3 v cy22150kfzxit 16-pin tssop - tape and reel industrial (?40 to 85c) 3.3 v programmer cy3672-usb programmer with usb interface cy3695 cy22150 adapter socket for cy3672-usb possible configurations ordering code package type operating range operating voltage cy22150zxc-xxx [10, 11] 16-pin tssop commercial (0 to 70c) 3.3 v cy22150zxc-xxxt [10, 11] 16-pin tssop- tape and reel commercial (0 to 70c) 3.3 v cy22150zxi-xxx [10, 11] 16-pin tssop industrial (?40 to 85c) 3.3 v cy22150zxi-xxxt [10, 11] 16-pin tssop- tape and reel industrial (?40 to 85c) 3.3 v cy22150zi-xxxt [10, 11] 16-pin tssop- tape and reel industrial (?40 to 85c) 3.3 v cy22150kzi-xxx [10] 16-pin tssop industrial (?40 to 85c) 3.3 v cy22150kzi-xxxt [10] 16-pin tssop- tape and reel industrial (?40 to 85c) 3.3 v cy22150kzxi-xxxt [10] 16-pin tssop- tape and reel industrial (?40 to 85c) 3.3 v notes 10. the cy22150zc-xxx and cy22150zi-xxx are factory programmed config urations. factory programming is available for high volume design opportunities of 100 ku/year or more in production. for more details, contac t your local cypress fae or cypress sales representative. 11. not recommended for new designs. [+] feedback
cy22150 document #: 38-07104 rev. *k page 15 of 18 ordering code definitions package diagram figure 11. 16-pin tssop 4.40 mm body z16.173 cy 22150 k f - z x lead-free 16-pin tssop package field programmable device indicates foundry manufacturing base part number company code: cy = cypress c temperature range: c = commercial; i = industrial xxx t tape and reel dash code. for factory- programmed devices only 51-85091 *c [+] feedback
cy22150 document #: 38-07104 rev. *k page 16 of 18 acronyms document conventions units of measure table 14. acronyms used in this documnent acronym description acronym description ack acknowledge lsb least significant bit bsc basic spacing between centers ma memory address clkoe clock output enable msb most significant bit cmos complementary metal oxide semiconductor pfd phase frequency detector da device address pll phase locked loop esd electrostatic discharge sclk serial interface clock esr equivalent series resistan ce sdat serial interface data fae field applications engineer tssop thin shrunk small outline package i/o input / output usb universal serial bus i2c inter integrated circuit vco voltage-controlled oscillator jedec joint electron device engineering council table 15. units of measure symbol unit of measure symbol unit of measure c degrees celsius vrms microvolts root-mean-square db decibels w microwatts dbc/hz decibels relative to the carrier per hertz ma milliamperes fc femto coulomb mm millimeters ff femto farads ms milliseconds hz hertz mv millivolts kb 1024 bytes na nanoamperes kbit 1024 bits ns nanoseconds khz kilohertz nv nanovolts k kilohms ohms mhz megahertz pa picoamperes m megaohms pf pico farads a microamperes pp peak-to-peak f microfarads ppm parts per million h microhenrys ps picoseconds s microseconds sps samples per second v microvolts sigma: one standard deviation [+] feedback
cy22150 document #: 38-07104 rev. *k page 17 of 18 document history page document title: cy22150 one-pll gene ral-purpose flash-programmable and i 2 c programmable clock generator document number: 38-07104 revision ecn submission date orig. of change description of change ** 107498 08/08/01 ckn new data sheet *a 110043 02/06/02 ckn preliminary to final *b 113514 05/01/02 ckn removed overline on figure 6 register address register data changed clk high unit from ns to s in parameter description table added (sink) to rows 1 and 4 and added (source) to rows 2 and 3 in the dc electrical characteristics table ( figure ) *c 121868 12/14/02 rbi power up requirements added to operating conditions information *d 125453 05/19/03 ckn changed 0 to 1 under 12h/d5 of table 2 and table 4 . reworded and reformatted programmab le crystal input oscillator gain settings text. *e 242808 see ecn rgl minor change: fixed the broken line in the block diagram *f 252352 see ecn rgl corrected table 2 specs. *g 296084 see ecn rgl added pb-free devices *h 2440846 see ecn aesa updated template. added note ?not recommended for new designs.? added part number cy22150kfc, cy22150kfct, cy22150kfi, cy22150kfzxc, cy22150kfzxct, cy22150kfzxi, cy22150kfzxit, cy22150kzxi-xxxt, and cy 22150kzi-xxxt in orderi ng information table. replaced lead free with pb-free. *i 2649578 01/29/09 kvm/pyrs removed reference to not e ?not recommended for new designs? for the following parts: cy22150kfc, cy22150kfct, cy22150kfi added cy22150kzi-xxx to the or dering information table removed cy22150zc-xxx, cy22150zc-xxxt and cy22 150zi-xxx from the ordering information table changed cy3672 to cy3672-usb, and moved to the bottom of the table *j 2900690 03/29/2010 kvm changed title from "one -pll general-purpose flash-programmable and 2-wire serially programmable clock generator" to "one-pll general-purpose flash-programmab le and i2c programmable clock generator" updated table on page 1. changed references to serial programmi ng interface (spi) to i2c interface in features and logic block diagram . removed inactive parts from ordering information . added possible configurations table for ?xxx? parts. *k 3210225 03/30/2011 cxq changed t dh min spec from 0 ns to 100 ns. updated package diagram. added ordering code defintions, acronyms and units of measure. [+] feedback
document #: 38-07104 rev. *k revised march 30, 2011 page 18 of 18 bp microsystems is a trademark of bp micro systems. hilo systems is a trademark of hi-lo systems, inc. cyclocks is a trademark o f cypress semiconductor. all product and company names mentioned in this document are the trademarks of their respective holders. cy22150 ? cypress semiconductor corporation, 2001-2011. the information contained herein is subject to change without notice. cypress s emiconductor corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a cypress product. nor does it convey or imply any license under patent or other rights. cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement wi th cypress. furthermore, cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. the inclusion of cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies cypress against all charges. any source code (software and/or firmware) is owned by cypress semiconductor corporation (cypress) and is protected by and subj ect to worldwide patent protection (united states and foreign), united states copyright laws and internatio nal treaty provisions. cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the cypress source code and derivative works for the sole purpose of creating custom software and or firmware in su pport of licensee product to be used only in conjunction with a cypress integrated circuit as specified in the applicable agreement. any reproduction, modification, translation, compilation, or repre sentation of this source code except as specified above is prohibited without the express written permission of cypress. disclaimer: cypress makes no warranty of any kind, express or implied, with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. cypress reserves the right to make changes without further notice to t he materials described herein. cypress does not assume any liability arising out of the application or use of any product or circuit described herein. cypress does not authori ze its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. the inclusion of cypress? prod uct in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies cypress against all charges. use may be limited by and subject to the applicable cypress software license agreement. sales, solutions, and legal information worldwide sales and design support cypress maintains a worldwide network of offices, solution center s, manufacturer?s representative s, and distributors. to find t he office closest to you, visit us at cypress locations . products automotive cypress.co m/go/automotive clocks & buffers cypress.com/go/clocks interface cypress. com/go/interface lighting & power control cypress.com/go/powerpsoc cypress.com/go/plc memory cypress.com/go/memory optical & image sensing cypress.com/go/image psoc cypress.com/go/psoc touch sensing cyp ress.com/go/touch usb controllers cypress.com/go/usb wireless/rf cypress.com/go/wireless psoc solutions psoc.cypress.com/solutions psoc 1 | psoc 3 | psoc 5 [+] feedback

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