DS80PCI402 2.5 Gbps/5.0 Gbps/8.0 Gbps 4 Lane PCI Express Repeater w/ Equalization & De-Emphasis | TI.com

DS80PCI402 (ACTIVE) 2.5 Gbps/5.0 Gbps/8.0 Gbps 4 Lane PCI Express Repeater w/ Equalization & De-Emphasis

 

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Description

The DS80PCI402 is a low-power, 4-lane repeater with 4-stage input equalization, and an output de-emphasis driver to enhance the reach of PCI-Express serial links in board-to-board or cable interconnects. This device is ideal for x4 (or lower) PCI-Express configuration, and it automatically detects and adapts to Gen-1, Gen-2, and Gen-3 data rates for easy system upgrade.

DS80PCI402 offers programmable transmit de-emphasis (up to 12 dB), transmit VOD (up to 1300 mVp-p), and receive equalization (up to 36 dB) to enable longer distance transmission in lossy copper cables (10 meters or more), or backplanes (40 inches or more) with multiple connectors. The receiver can open an input eye that is completely closed due to inter-symbol interference (ISI) introduced by the interconnect medium.

The programmable settings can be applied easily through pins or software (SMBus/I2C), or can be loaded through an external EEPROM. When operating in the EEPROM mode, the configuration information is automatically loaded on power up, which eliminates the need for an external microprocessor or software driver.

Features

  • Comprehensive Family, Proven System Interoperability
    • DS80PCI102 : x1 PCIe
      Gen-1, Gen-2, and Gen-3
    • DS80PCI402: x4 PCIe
      Gen-1, Gen-2, and Gen-3
    • DS80PCI800 : x8/x16 PCIe
      Gen-1, Gen-2, and Gen-3
  • Automatic Rate-Detect and Adaptation to
    Gen-1, Gen-2, and Gen-3 Speeds
  • Seamless Support for Gen-3 Transmit FIR Handshake
  • Receiver EQ (up to 36 dB), Transmit De-Emphasis
    (up to 12 dB)
  • Adjustable Transmit VOD: 0.8 to 1.3 Vp-p (Pin Mode)
  • 0.2 UI of Residual Deterministic Jitter at 8 Gbps After
    40 Inches of FR4 or 10 m 30-awg PCIe Cable
  • Low Power Dissipation With Ability to Turn Off Unused
    Channels: 65 mW/Channel
  • Automatic Receiver Detect (Hot-Plug)
  • Multiple Configuration Modes: Pins/SMBus/Direct-
    EEPROM Load
  • Flow-Thru Pinout: 54-Pin WQFN (10 mm-× 5.5-mm,
    0.5-mm Pitch)
  • Single Supply Voltage: 2.5 or 3.3 V (Selectable)
  • ±5 kV HBM ESD Rating
  • –40°C to 85°C Operating Temperature Range

WEBENCH® Designer DS80PCI402

Tx:
Mid Channel:
Rx:
Max Data Rate:  Gbps

 
Number of UI:
PRBS:
 
Eye Diagram

Parametrics

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Part number Order Device type Number of channels (#) Application IN SigCon OUT SigCon Input compatibility Output compatibility Speed (Max) (Gbps) SupplyVoltage (Volt) Protocols Operating temperature range (C) Package Group
DS80PCI402 Order now Redriver     8     PCIe
SATA
SAS    
EQ     DE     AC-coupling
CML    
AC-coupling
CML    
8     2.5
3.3    
PCIe1
PCIe2
PCIe3
sRIO
General purpose    
-40 to 85     WQFN | 54    
DS80PCI102 Order now Redriver     2     PCIe
SATA
SAS    
EQ     DE     AC-coupling
CML    
AC-coupling
CML    
8     2.5
3.3    
PCIe1
PCIe2
PCIe3
sRIO
General purpose    
-40 to 85     WQFN | 24    
DS80PCI800 Order now Redriver     8     PCIe
SATA
SAS    
EQ     DE     AC-coupling
CML    
AC-coupling
CML    
8     2.5
3.3    
PCIe1
PCIe2
PCIe3
sRIO
General purpose    
-40 to 85     WQFN | 54    
DS80PCI810 Order now Redriver     8     PCIe
SATA
SAS    
EQ     Linear CML Driver     AC-coupling
CML    
AC-coupling
CML    
8     2.5
3.3    
PCIe1
PCIe2
PCIe3    
-40 to 85     WQFN | 54