1PS8971B 02/08/13
Features
• 2DifferentialChannel,2:1Mux/DeMux
• PCIExpress®2.0performance,5.0Gbps
• Bi-directionaloperation
• LowBit-to-BitSkew,7ps
• LowCrosstalk:-38dB@2.5GHz
• LowOffIsolation:-25dB@2.5GHz
• VDDOperatingRange:1.5Vto1.8V±0.1V
• ESDTolerance:2kV
• Packaging:–28-contactTQFN(3.5×5.5mm)
Description
PericomSemiconductorsPI2PCIE2212isa4to2differential,
bi-directionalchannelmultiplexer/demultiplexerswitch.Dueto
itslowbit-to-bitskew,highchannel-to-channelnoiseisolation
andbandwidth,thisproductisidealforPCIExpress®2.0signal
switchingat5.0Gbps.
Application
SwitchaPCIExpress®laneoutputbetweentwoPCIExpresslane
inputs
Block Diagram Pin Description (Top-SideView)
PI2PCIE2212
A0+
A0-
A1+
A1-
B0+
B0-
B1+
B1-
C0+
C0-
C1+
C1-
SEL
Truth Table
Function SEL
AtoB L
AtoC H
GND
SEL
AO+
B0+
B0-
B1+
B1-
C1-
VDD
GND
C0+
C1+
GND
VDD
GND
VDD
VDD
GND
VDD
GND
1
2
3
4
5
6
7
8
9
10
24
23
22
21
20
19
18
17
16
15
28 27 26 25
11 12 13 14
GND
AO-
A1+
A1-
GND
VDD
C0-
VDD
VDD
PCI Express® 2.0, 1-Lane,
2:1 Mux/DeMux Switch w/ Single Enable
13-0023
2PS8971B 02/08/13
PI2PCIE2212
PCI Express® 2.0, 1-Lane 2:1 Mux/DeMux Switch w/ Single Enable
DC Electrical Characteristics (TA=–40°Cto+85°C,VDD=1.5Vto1.8V)
Parameter Description Test Conditions Min. Typ.(1) Max. Units
VIH InputHIGHVoltageControlInput,SEL GuaranteedHIGHlevel 0.65xVDD - -
VVIL InputLOWVoltageControlInput,SEL GuaranteedLOWlevel -0.5 - 0.35xVDD
VIK ClampDiodeVoltageControlInput,SEL VDD=Max.,IIN=–18mA - -0.7 -1.2
IIH InputHIGHCurrentControlInput,SEL VDD=Max.,VIN=VDD - - ±5 μA
IIL InputLOWCurrentControlInput,SEL VDD=Max.,VIN=GND - - ±5
VIDC DCSignalVoltageRange,ChannelI/O
(Ax,Bx,Cx)
VO/VI>95%,RL=10K -0.4 2.4
V
VO/VI>80%,RL=50-
ohms -0.3 2.0
Notes:
1. TypicalvaluesareatVDD=1.8V,TA =25°Cambientandmaximumloading.
StorageTemperature......................................... –65°Cto+150°C
SupplyVoltagetoGroundPotential.................... –0.5Vto+2.5V
DCInputVoltage................................................. –0.5Vto+VDD
DCOutputCurrent........................................................... 120mA
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specication
is not implied. Exposure to absolute maximum rating conditions for
extendedperiodsmayaffectreliability.
Maximum Ratings
(Abovewhichusefullifemaybeimpaired.Foruserguidelines,nottested.)
Power Supply Characteristics
Parameters Description Test Conditions Min. Typ.(1) Max. Units
ICC QuiescentPowerSupplyCurrent VDD=Max.,VIN=GNDorVDD 200 400 µA
Notes:
1. TypicalvaluesareatVDD=1.8V,TA =25°Cambientandmaximumloading.
Dynamic Electrical Characteristics(2) (TA=-40ºto+85ºC,VDD=1.5Vto1.8V)
Parameter Description Test Conditions Min. Typ.(1) Max. Units
XTALK Crosstalk f=2.5GHz -38
dB
OIRR OFFIsolation f=2.5GHz -25
ILOSS Differential
InsertionLoss f=2.5GHz -2.0
BW Bandwidth-3dB 3.8
GHz
VIf MaxSignalFre-
quencyRange
Insertionloss1.5dB,VIN=0.6Vpp,DC=0V 2.5
Insertionloss1.5dB,VIN=0.6Vpp,DC=0.9V 2.5
Insertionloss3.0dB,VIN=0.6Vpp,DC=0V 4.0
Insertionloss3.0dB,VIN=0.6Vpp,DC=0.9V 4.0
P-1dB 1dBCompression
InputSignal
RL=50,f=625MHz,Sinewave,DC=0V 1.2
VppRL=50,f=625MHz,Sinewave,DC=0.45V 2.0
RL=50,f=625MHz,Sinewave,DC=0.9V 2.4
Notes:
1. TypicalvaluesareatVDD=1.8V,TA =25°Cambientandmaximumloading.
2. Guaranteedbydesign.
13-0023
3PS8971B 02/08/13
PI2PCIE2212
PCI Express® 2.0, 1-Lane 2:1 Mux/DeMux Switch w/ Single Enable
Switching Characteristics (TA=-40ºto+85ºC,VDD=1.5Vto1.8V)
Paramenter Description Min. Typ.(1) Max. Units
tPZH,tPZL LineEnableTime-SELtoAN,BN,CN0.5 - 8.0 ns
tPHZ,tPLZ LineDisableTime-SELtoAN,BN,CN0.5 - 8.0
tb-b Bit-to-bitskewwithinthesamedifferentialpair 15 ps
tch-ch Channel-to-channelskew 20
Note:
1. TypicalvaluesareatVDD=1.8V,TA =25°Cambientandmaximumloading.
Switch Positions
Test Switch
tPLZ,tPZL 2xVDD
tPHZ,tPZH GND
PropDelay Open
Pulse
Generator D.U.T
200-Ohm
200-Ohm
4pF
CL
VDD
2 x V
DD
RT
VIN VOUT
Test Circuit for Electrical Characteristics(1-5)
Notes:
1. CL=Loadcapacitance:includesjigandprobecapacitance.
2. RT=Terminationresistance:shouldbeequaltoZOUTofthePulseGenerator
3. Output1isforanoutputwithinternalconditionssuchthattheoutputislowexceptwhendisabledbytheoutputcontrol.
output2isforanoutputwithinternalconditionssuchthattheoutputishighexceptwhendisabledbytheoutputcontrol.
4. Allinputimpulsesaresuppliedbygeneratorshavingthefollowingcharacteristics:PRR≤MHz,ZO=50Ω,tR≤2.5ns,tF≤2.5ns.
5. Theoutputsaremeasuredoneatatimewithonetransitionpermeasurement.
Switching Waveforms
Voltage Waveforms Enable and Disable Times
tPLZ
VDD/2 VDD/2
VDD
VOH
0V
VOL
VDD/2
VOH –0.3V
VOL +0.3V
VDD/2
tPHZ
tPZL
tPZH
Output
Output
VOL
VOH
SEL
13-0023
4PS8971B 02/08/13
PI2PCIE2212
PCI Express® 2.0, 1-Lane 2:1 Mux/DeMux Switch w/ Single Enable
Crosstalk
Off Isolation
13-0023
5PS8971B 02/08/13
PI2PCIE2212
PCI Express® 2.0, 1-Lane 2:1 Mux/DeMux Switch w/ Single Enable
Insertion Loss
+
+
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+
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+
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

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Diff. Near End Xtalk Test Circuit
+
+
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
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
+

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Diff. Off Isolation Test Circuit
+
+
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Diff. Insertion Loss and Return Test
Circuit
13-0023
6PS8971B 02/08/13
PI2PCIE2212
PCI Express® 2.0, 1-Lane 2:1 Mux/DeMux Switch w/ Single Enable
Packaging Mechanical: 28-Pin TQFN (ZH)
PericomSemiconductorCorporation•1-800-435-2336 • www.pericom.com
Ordering Information
Ordering Code Package Code Package Type
PI2PCIE2212ZHE ZH Pb-free&Green,28-ContactTQFN
Notes:
• Thermalcharacteristicscanbefoundonthecompanywebsiteatwww.pericom.com/packaging/
• E=Pb-freeandGreen
• AddinganXsufx=Tape/Reel
DESCRIPTION: 28-Contact, Very Thin Quad Flat No-Lead, TQFN
PACKAGE CODE: ZH28
DOCUMENT CONTROL #: PD-2034 REVISION: C
DATE: 07/11/12
12-0419
All trademarks are property of their respective owners.
Note:
• Forlatestpackageinfo,pleasecheck:http://www.pericom.com/products/packaging/mechanicals.php
13-0023