PI3PCIE2612-A Datasheet, PDF (15/18 Pages) Pericom Semiconductor Corporation – High Bandwidth, 6-Differential Channel 1:2 DP/PCIe Gen2 Display Mux, ATX Pinout

PI3PCIE2612-A
High Bandwidth, 6-Differential Channel
1:2 DP/PCIe Gen2 Display Mux, ATX Pinout
Switch Signal Integrity Requirements and Test Procedures for 5.0 Gb/s
Signal integrity requirements for 5.0 Gb/s applications of the switch are specified. Also included are the requirements of
the test fixture for switch S-parameter measurements.
Signal Integrity Requirements
The procedures outlined in ANSI Electronics Industry Alliance (EIA) standards documents shall be followed:
• EIA 364-101 – Attenuation Test Procedure for Electrical Connectors, Sockets, Cable Assemblies or Interconnection
Systems
• EIA 364-90 – Crosstalk Ratio Test Procedure for Electrical Connectors, Sockets, Cable Assemblies or Interconnection
Systems
• EIA 364-108- Impedance, Reflection Coefficient, Return Loss, and VSWR Measured in the Time and Frequency Do-
main Test Procedure for Electrical Connectors, Sockets, Cable Assemblies or Interconnection Systems
Signal Integrity Requirements and Test Procedures for 5.0 Gb/s
Parameter
Procedure
Requirements
Differential
Insertion Loss
(DDIL)
EIA 364-101
The EIA standard shall be used with the following considerations:
1. The measured differential S parameter shall be referenced to a
100 ohms differential impedance.
2. The test fixture shall meet the test fixture requirement defined in
Section 1.12.
3. The test fixture effect shall be removed from the measured S
parameters. Refer to Note 1.
≥-[0.6*(f)+0.5] dB up to 2.5 GHz (for
example, ≥-2 dB at f = 2.5 GHz);
≥-[1.2*(f-2.5)+2] dB for 2.5 GHz < f ≤ 5
GHz (for example, ≥-5 dB at f = 5 GHz);
≥-[1.6*(f-5)+5] dB for 5 GHz < f ≤ 7.5
GHz (for example, ≥-9 dB at f = 7.5
GHz);
Refer to Figure 1.
Differential
Return Loss
(DDRL)
EIA 364-108
The EIA standard shall be used with the following considerations:
1. The measured differential S parameter shall be referenced to a
100 ohms differential impedance.
2. The test fixture shall meet the test fixture requirement in Section
1.12.
3. The test fixture effect shall be removed. Refer to Note 1.
≤ -14 dB up to 2.8 GHz; ≤ -8 dB up to 5
GHz; ≤ -4 dB up to 7.5 GHz.
Refer to Figure 2.
Intra-pair Skew Intra-pair skew must be achieved by design; measurement not
required.
5 ps max
Differential Near
End Crosstalk
(DDNEXT)
EIA 364-90
The EIA standard must be used with the following considerations:
1. The crosstalk requirement is with respect to all the adjacent dif-
ferential pairs
-32 dB max up to 2.5 GHz;
-26 dB max up to 5.0 GHz;
-20 dB max up to 7.5 GHz;
See Figure 3.
Differential
EIA 364-101
≤ -20 dB up to 3 GHz;
Insertion Loss
(DDIL) when
switch is turned
off
Notes:
1. The specified S parameters requirements are for switch component only, not including the test fixture effect. While the TRL calibration method is
recommended, other calibration methods are allowed.
07-0261
15
PS8925B
11/30/07