![](http://datasheet.mmic.net.cn/Pericom/PI2PCIE2212ZHEX_datasheet_99304/PI2PCIE2212ZHEX_3.png)
3
PS8971B
02/08/13
PI2PCIE2212
PCI Express 2.0, 1-Lane 2:1 Mux/DeMux Switch w/ Single Enable
Switching Characteristics (TA=-40to+85C,VDD=1.5Vto1.8V)
Paramenter
Description
Min.
Typ.(1)
Max.
Units
tPZH,tPZL LineEnableTime-SELtoAN,BN,CN
0.5
-
8.0
ns
tPHZ,tPLZ LineDisableTime-SELtoAN,BN,CN
0.5
-
8.0
tb-b
Bit-to-bitskewwithinthesamedifferentialpair
15
ps
tch-ch
Channel-to-channelskew
20
Note:
1. TypicalvaluesareatVDD=1.8V,TA =25°Cambientandmaximumloading.
Switch Positions
Test
Switch
tPLZ,tPZL
2xVDD
tPHZ,tPZH
GND
PropDelay
Open
Pulse
Generator
D.U.T
200-Ohm
4pF
CL
VDD
2 x VDD
RT
VIN
VOUT
Test Circuit for Electrical Characteristics(1-5)
Notes:
1. CL=Loadcapacitance:includesjigandprobecapacitance.
2. RT=Terminationresistance:shouldbeequaltoZOUTofthePulseGenerator
3. Output1isforanoutputwithinternalconditionssuchthattheoutputislowexceptwhendisabledbytheoutputcontrol.
output2isforanoutputwithinternalconditionssuchthattheoutputishighexceptwhendisabledbytheoutputcontrol.
4. Allinputimpulsesaresuppliedbygeneratorshavingthefollowingcharacteristics:PRR≤MHz,ZO=50,tR≤2.5ns,tF≤2.5ns.
5. Theoutputsaremeasuredoneatatimewithonetransitionpermeasurement.
Switching Waveforms
Voltage Waveforms Enable and Disable Times
tPLZ
VDD/2
VDD
VOH
0V
VOL
VDD/2
VOH –0.3V
VOL +0.3V
VDD/2
tPHZ
tPZL
tPZH
Output
VOL
VOH
SEL
13-0023