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PI2EQX4402D (Obsolete)

2-lane PCIe ReDriver with Equalization and De-emphasis

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Product Description

Pericom Semiconductor’s PI2EQX4402D is a low power, PCI Express compliant signal Re-Driver. The device provides programmable equalization, amplification, and de-emphasis by using 7 select bits, SEL[0:6], to optimize performance over a variety of physical mediums by reducing Inter-symbol interference. PI2EQX4402D supports four 100-ohm Differential CML data I/O’s between the Protocol ASIC to a switch fabric, across a backplane, or extends the signals across other distant data pathways on the user’s platform.

The integrated equalization circuitry provides flexibility with signal integrity of the PCI Express signal before the Re-Driver. Whereas the integrated de-emphasis circuitry provides flexibility with signal integrity of the PCI Express signal after the Re-Driver.

A low-level input signal detection and output squelch function is provided for all four channels. Each channel operates fully independantly. When a channel is enabled (EN_x=1) and operating, that channel input signal level (on xl+/-) determines whether the output is enabled. If the input level of the channel falls below the active threshold level (Vth-) then the output driver switches off, and the pin is pulled to VDD via a high impedance resistor.

In addition to providing signal re-conditioning, Pericom’s PI2EQX4402D also provides power management Stand-by mode operated by an Enable pin. A differential clock buffer is provided for test and other system requirements. This clock function is not used by the data channels.

Features

  • Two High Speed PCI Express lanes
  • Supports PCI Express data rates (2.5 Gbps) on each lane
  • Adjustable Transmiter De-Emphasis & Amplitude
  • Adjustable Receiver Equalization
  • Input Signal Level Detect & Output Squelch on all Channels
  • Two Spread Spectrum Reference Clock Buffer Outputs
  • 100Ω Differential CML I/O’s
  • Low Power (100mW per Channel)
  • Standby Mode – Power Down State
  • VDD Operating Range: 1.8V +/-0.1V
  • Packaging (Pb-free & Green): 84-ball LFBGA (NB84)

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Channels 4
Data Rate (Gbps) 2.5
Lanes/Ports 2
Output Swing Max (mV) 1600
Programming Interface(s) I2C, Pinstrap

Technical Documents

Evaluation Boards and User Guides

Design tool model software

Recommended Soldering Techniques

TN1.pdf

Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents

Request Documents
Orderable Part Number Status Package Environmental Compliance Packing Request Samples
Qty. Carrier
PI2EQX4402DNBE Obsolete LFBGA-84 LFGP 260 TRAY
PI2EQX4402DNBEX Obsolete LFBGA-84 LFGP 2000 T&R

Environmental Compliance Legend:
LFF: Pb-Free Finish and RoHS 5/6
TLFP: Totally Pb-Free Product and RoHS 6/6
LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free
TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free