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Truth Table(1)
E H L L S X L H YA Hi- Z IA0 IA1 YB Hi- Z IB0 IB1 YC Hi- Z IC0 IC1 YD Hi- Z ID0 ID1 Function Disable S=0 S=1
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PI5L100
Wide Bandwidth Low Voltage LanSwitch Quad 2:1 Mux/Demux
Features
* Replaces mechanical relays * High-performance, low-cost solution for switching between different LAN signals * Ultra-low quiescent power (0.1 A typical) * Low crosstalk: -40 dB @ 30 Mbps * Low insertion loss or On-Resistance: 3ohms typical * Single extended supply operation up to 6.2V 5% * Off isolation: -30 dB @ 30 Mbps * Wide bandwidth data rates > 200 Mbps * Packages (Pb-free & Green available): - 16-pin 150-mil wide plastic SOIC (W) - 16-pin 150-mil wide plastic QSOP (Q) - 20-pin 173-mil wide plastic TSSOP (L)
Description
Pericom Semiconductor's PI5L100 is a Quad 2:1 multiplexer/ demultiplexer LanSwitch with three-state outputs. This device can be used for switching between various standards, such as 10 BaseT, 100 Base-T, 100VG-AnyLAN or Token Ring. Generally, this part can be used to replace mechanical relays in low voltage LAN applications that have phsical layer, unshielded twisted pair media (UTP) with either CAT 3 or CAT 5 grade cable. To reduce insertion loss, PI5L100 is powered by a 6.2V Zener voltage.
16-Pin Configuration
S IA0 IA1 YA IB0 IB1 YB GND
1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9
Block Diagram
IA0 IA1 IB0 IB1 IC0 IC1 ID0 ID1
16-Pin W,Q
VCC E ID0 ID1 YD IC0 IC1 YC
20-Pin Configuration
E
NC S IA0 1 2 3 20 19 18 NC VCC E ID0 ID1 YD IC0 IC1 YC NC
S
IA1 YA IB0 IB1 YB GND NC
YA
YB
YC
YD
4 20-Pin 17 5 L 16 15 6 14 7 13 8 12 9 11 10
Product Pin Description
Pin Name IAn- IDn S E YA- YD GND VCC
1
De s cription Data Inputs Select Inputs Enable Data Outputs Ground Power
PS7031F 09/17/04
Note: 1. H = High Voltage Level L = Low Voltage Level
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PI5L100 Wide-Bandwidth, Low-Voltage LanSwitch Quad 2:1 Mux/Demux
Maximum Ratings
(Above which useful life may be impaired. For user guidelines, not tested.) Storage Temperature ........................................................ -65C to +150C Ambient Temperature with Power Applied ............................ 0C to +70C Supply Voltage to Ground Potential ................................... -0.5V to +7.0V DC Input Voltage ................................................................ -0.5V to +7.0V DC Output Current ......................................................................... 120 mA Power Dissipation .............................................................................. 0.5W
Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
DC Electrical Characteristics (Over the Operating Range, TA = 0C to +70C, VCC = 6.2V, +5%, - 2%)
Parame te r VIH VIL IIH IIL IOZH VIK IOS VH VON RON
(6)
De s cription Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current High Impedance Output Current Clamp Diode Voltage Short Circuit Current(3) Input Hysteresis at Control Pins Switch On Voltage M1 Switch On Resistance M2 Switch On Resistance On Resistance Match
Te s t Conditions Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., VIN = VCC VCC = Max., VIN = GND 0 A, B VCC VCC = Min., IIN = -18mA A (B) = 0V, B (A) = VCC VIN = 4.5V, E = LOW, See Figure 10, RL = 100 Calculated from VON VIN = 4.5V, E = LOW, See Figure 10, RL = 100 VIN = 4.5V, E = LOW
M in. 2.0 -0.5 -- -- -- -- 100 -- 3.7(4) 19 2.0 --
Typ(2) -- -- -- -- -- -0.7 -- 150 4.06(5) 11.2 3.0 1. 0
M ax. -- 0.8 1 1 1 -1.2 -- -- -- -- -- --
Units V A V mA mV V
RON(7) RON
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 6.2V, TA = 25C ambient temperature. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. VON (min) value is at VCC = 6.1V, TA = 70C. 5. The expected AC VON value is about 125 mV higher than the DC VON value using the similar test circuit in Figure 10 with VIN swing from 0.0V to 4.5V at 10 MHz sine wave. 6. The value of RON of M1 is calculated with the equvalent mathematical formula of the test circuit in Figure 10.
RON (M1) = were VIN - VON ION
VON ION = R + R (M2) L ON
with RON (M2) = 3 ohms
7. This parameter is determined by device characterization but is not production tested.
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PI5L100 Wide-Bandwidth, Low-Voltage LanSwitch Quad 2:1 Mux/Demux
Capacitance (TA = 25C, f = 1 MHz)
Parame te rs (1) CIN C O FF CON De s cription Input Capacitance A/B Capacitance, Switch Off A/B Capacitance, Switch On Te s t Conditions VIN = 0V VIN = 0V VIN = 0V Typ. 6 6 8 pF Units
Note: 1. This parameter is determined by device characterization but is not production tested.
Power Supply Characteristics
Parame te rs (1) IC C IC C De s cription Quiescent Power Supply Current Supply Current per Input @ TTL High VC C = 5.5V VC C = 5.5V VC C = 5.5V Input Pins Open E = GND Control Input Toggling 50% Duty Cycle Te s t Conditions VIN = GND or VC C VIN
=
M in.
Typ. M ax. 0.1 3.0 2.5
Units A mA
3.4V(2)
IC C D
Supply Current per MHz(3)
0.25
A/MHz
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Per TTL driven input (VIN = 3.4V, control inputs only); A and B pins do not contribute to ICC. 3. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency. The A and B inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design.
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PI5L100 Wide-Bandwidth, Low-Voltage LanSwitch Quad 2:1 Mux/Demux
Switching Characteristics over Operating Range
PI5L100 Com. Parame te rs tIY tSY tPHZ, tPLZ tEY XTALK(Dif) XTALK OIRR BW tON tOFF De s cription Propagation Delay
(2,3)
Conditions (1) C L = 50pF RL = 500 ohms
M in. -- 0.5 0.5 0.5
Typ. --
M ax. 0.25 5.2 5.0 4.8
Units ns
, IN to Y
Bus Enable Time, S to Y Bus Disable Time, E to Y Bus Disable Time, E to Y Differential Crosstalk Crosstalk Off Isolation -3dB Bandwidth Turn On Time Turn Off Time
(2)
RL = 100 ohms, f = 10MHz, See Figure 11 RL = 100 ohms, f = 30MHz, See Figure 9 RL = 100 ohms, f = 30MHz, See Figure 6 RL = 100 ohms, See Figure 9 RL = 100 ohms, CL= 35pF, See Figure 8
-40 -- -- -- -- --
-60 -40 -30 216 11 11
-- -- -- -- -- --
Notes: 1. See test circuit and waveforms. 2. This parameter is guaranteed but not tested. 3. The bus switch contributes no propagational delay other than the RC delay of the On-Resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25ns for 50pF load. Since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side.
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PI5L100 Wide-Bandwidth, Low-Voltage LanSwitch Quad 2:1 Mux/Demux
VON 6.000
RON 20.00 E+00
VIN = 4.5000V, RON = 14.3E+00, VON = 3.9569V
2.000/Div. VON 75C
25C
0.6000/Div. 75C
25C
RON
0.000 0.000 VIN 0.6/Div.
0.000 6.000
Figure 3. RON vs Input Voltage over Temperature (RON at VCC = 6.1V @ 75C)
RON 20.00 E+00
VIN = 4.5000V, RON = 10.9E+00, VON = 4.0720V
VON 6.000
2.000/Div. VON
0.6000/Div.
RON
0.000 0.000 VIN 0.6/Div.
0.000 6.000
Figure 4. RON vs Input Voltage (RON at VCC = 6.2V @ 25C)
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PI5L100 Wide-Bandwidth, Low-Voltage LanSwitch Quad 2:1 Mux/Demux
0dB -1dB -2dB -3db -4dB -5dB -6dB -7dB -8dB -9dB -10dB
NETWORK A: REF 5.500 [dB]
B: REF 180.0 [deg]
MKR 216 115 931.231 Hz T/R 519.486m dB -90.2501 deg
+180 +144
GAIN
+108 +72 +36
PHASE
0 -36 -72 -108 -144
2
4
6
8
1
2
4
6
8
1
2
-180
DIV 1.000
DIV 36.00
START STOP
1 000 000 . 000 Hz 300 000 000 . 000 Hz
RBW: 10 kHz ST: 1.41 sec RANGE: R = 0, T = 0dBm PI5L100 -3dB BANDWIDTH, PHASE
Figure 5. Gain/Phase vs Frequency
NETWORK A: REF 10.00 [dB]
+10dB 0dB -10dB -20db -30dB -40dB -50dB -60dB -70dB -80dB -90dB
B: REF 180.0 [deg]
MKR 100 063 436.436 Hz T/R 519.486m dB -90.2501 deg
+180 +144
PHASE
+108 +72 +36
GAIN
0 -36 -72 -108 -144
2
4
6
8
1
2
4
6
8
1
2
-180
DIV DIV 36.00 10.00 RBW: 10 kHz ST: 1.41 sec PI5L100 OFF ISOLATION
START STOP RANGE: R = 0, T = 0dBm
1 000 000 . 000 Hz 300 000 000 . 000 Hz
Figure 6. Off Isolation vs Frequency
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0dB -10dB PHASE -20dB -30db -40dB MAGNITUDE -50dB -60dB -70dB -80dB -90dB -100dB
2 4 6 8 1 2 4 6 8 1 2
PI5L100 Wide-Bandwidth, Low-Voltage LanSwitch Quad 2:1 Mux/Demux
NETWORK A: REF 0.000 [dB]
B: REF 180.0 [deg]
MKR 10 074 746.057 Hz T/R 519.486m dB -90.2501 deg
+180 +144 +108 +72 +36 0 -36 -72 -108 -144 -180
DIV 10.00
DIV 36.00
START STOP
1 000 000 . 000 Hz 300 000 000 . 000 Hz
RBW: 10 kHz ST: 4.05 sec RANGE: R = 0, T = 0dBm PI5L100 XTALK 10 MHz, RL = 50 Ohm
Figure 7. Crosstalk vs Frequency
Applications
LAN Switch Applications
The PI5L100 was designed to switch between various standards such as 10Base-T, 100Base-T, 100VG-AnyLAN, and Token Ring. Also general purpose applications such as loopback, line termination, and line clamps that might normally use mechanical relays are also ideal uses for this LAN Switch (see Figure 11 applications). Generally speaking, this LAN Switch can be used for data rates to 200 Mbps and data signal levels from 0V to 4.5V. LAN Standards 10Base-T 100Base-T 100VG-AnyLAN Data Rate per twisted pair (UTP) 10 Mbps 100 Mbps 25 Mbps 1 and 2 are single ended inputs to the differential inputs of the DUT. Trace 3 is the differential XTALK output which equates to 20LOG VOUT/VIN = 20LOG 30 mV/5V = -44dB. Since the edge rate is 2ns, the effective input frequency is equal to 0.3/tR which is ~150 MHz. So the approximate Differential Crosstalk at 150 MHz is -44dB. Because pins measured are not adjacent, the differential crosstalk is typically > 60 dB at 10 MHz. The load resistor (RL) used was 100 ( to match the UTP impedance). Increasing the data rate or RL will also increase differential crosstalk. VCC Bias Voltage vs RON To keep RON to a minimum, it is recommended that the VCC voltage be increased to a voltage between +6.0V and +6.5V (see Figure 13). The RON vs. VIN curve shows the effect of on-resistance and input voltage which is exponential. Ideally an input voltage between 0.2V and 3.6V will keep RON in the flat part of the curve (RON or flatness is ~2 ohms). Signal Distortion Distortion of the input signal is equated to 20LOG RON/ RL. So keeping RON flat as data signal level varies is critical to low distortion. Also, increasing the data rate increases harmonic distortion which also effects the signal amplitude. Evaluation Board Figure 14 shows the layout for an EV board that can be used for evaluation. This is a 2-layer board and is one-inch square.
Differential Crosstalk . . . XTALK (DIF) Adjacent pins cause the most crosstalk because of the interlead package capacitance which is generally in the order of 0.5pF (pinto-pin). It can be seen in Figure 11 that this Evaluation (EV) Board schematic uses four pairs of switches. Pair 1B/2B are RX1 that connect to YA and YB. The second pair, 3B/4B, are TX1 and connect to YC and YB. Pairs 3 and 4 are grounded for this differential crosstalk test. The purpose of this EV board is to determine the amount of crosstalk between the transmit and receive pairs in a full duplex application. Figure 15 shows the scope waveforms. Traces
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PI5L100 Wide-Bandwidth, Low-Voltage LanSwitch Quad 2:1 Mux/Demux
Test Circuits
+5.0V
Vcc 3V IN PI5L100 GND EN S D
75 35 pF
DIGITAL INPUT
VOUT
50%
50%
ANALOG OUTPUT
tON
90%
90%
tOFF
Figure 8. Switching Time
HP4195A S1 R1 T1
HP11667A
PI5L100 100
Figure 9. Gain/Phase Crosstalk, Off Isolation
VON VIN = 4.5V E M1 RL 100 M2
Figure 10. Switch ON Voltage Test Circuit
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PI5L100 Wide-Bandwidth, Low-Voltage LanSwitch Quad 2:1 Mux/Demux
VCC = 6.2V
0.1 F S
DSO
IA0 IA1 YA
1 2 3 4 5 6 7 8
16 VCC 15 Z 14 ID0
Vo
100 100
IB0 IB1 YB GND
PI5L100
13 ID1 12 YD 11 IC0 10 IC1 9 YC
100 100
PULSE GENERATOR
Figure 11. Differential Crosstalk Measurement
TRANSMIT 2
TX1
PI5L100
RX1
RECEIVE 2
OFFSET ADJUST
Figure 12a. Full Duplex Transceiver
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JP1
+V
C2
JP5
6.2V ZENER VCC
R1
1 mA
R
PI5L100
VCC
PERICOM SEMI CROSSTALK EVAL PCB
Figure 13. VCC Bias Current
RP+ RP- Figure 14a. Crosstalk EV Board
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COPYRIGHT 1995
GND
JP3 U1 R3 R2
C1
VCC
JP4
PI5L100
JP2
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PI5L100 Wide-Bandwidth, Low-Voltage LanSwitch Quad 2:1 Mux/Demux
TX1
120
100
Figure 12c. Line Termination
RX1
Figure 12b. Loop Back
Figure 12d. Line Clamp
TP+
TP-
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(1) Differential Crosstalk
Data In +
Data In -
Figure 14b. Component Side
(3) Out +
(4) Out -
Figure 15. Crosstalk Waveform
11
Figure 14c. Solder Side
PI5L100 Wide-Bandwidth, Low-Voltage LanSwitch Quad 2:1 Mux/Demux
PS7031F
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PI5L100 Wide-Bandwidth, Low-Voltage LanSwitch Quad 2:1 Mux/Demux
Packaging Mechanical: 16-pin SOIC (W)
16
.149 .157
3.78 3.99 .0099 .0196 0.25 x 45 0.50
1 .386 .393 9.80 10.00 .0155 .0260 0.393 0.660 REF .053 .068 1.35 1.75 SEATING PLANE 0-8 0.41 1.27 .016 .050 .0075 .0098 0.19 0.25
.2284 .2440 5.80 6.20
.050 BSC 1.27
.013 .020 0.330 0.508
.0040 0.10 .0098 0.25
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
Packaging Mechanical: 16-pin QSOP (Q)
16
.008 0.20 MIN.
.008 .013 0.20 0.33 Guage Plane
.150 .157
3.81 3.99
.010 0.254
1
.189 .197 4.80 5.00 .008 0.203 REF .053 1.35 .069 1.75
Detail A
.016 .035 0.41 0.89
.041 1.04 REF
0-6
.015 x 45 0.38
Detail A
.007 .010
0.178 0.254
SEATING PLANE .004 0.101 .010 0.254
0.41 .016 1.27 .050 .228 .244 5.79 6.19
.025 BSC 0.635
.008 .012 0.203 0.305
X.XX DENOTES DIMENSIONS IN MILLIMETERS X.XX
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PI5L100 Wide-Bandwidth, Low-Voltage LanSwitch Quad 2:1 Mux/Demux
Packaging Mechanical: 20-pin TSSOP (L)
20
.169 .177
4.3 4.5
1 .252 .260 6.4 6.6 .004 0.09 .008 0.20 .047 1.20 Max 0.45 0.75 .018 .030
SEATING PLANE
.238 .269 6.1 6.7
.0256 BSC 0.65
.007 .012 0.19 0.30
.002 0.05 .006 0.15
X.XX X.XX
DENOTES CONTROLLING DIMENSIONS IN MILLIMETERS
Ordering Information
Ordering Code PI5L100W PI5L100WE PI5L100Q PI5L100QE PI5L100L PI5L100LE Package Code W W Q Q L L Package Type 16-pin 150-mil wide plastic SOIC Pb-free & Green, 16-pin 150-mil wide plastic SOIC 16-pin 150-mil wide plastic QSOP Pb-free & Green, 16-pin 150-mil wide plastic QSOP 20-pin 173-mil wide plastic TSSOP Pb-free & Green, 20-pin 173-mil wide plastic TSSOP
Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
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