DS80PCI810

ACTIVE

2.5/5.0/8.0-Gbps 8-channel linear redriver with equalization

Product details

Type Redriver Protocols PCIe1, PCIe2, PCIe3 Applications PCIe, SAS, SATA Number of channels 8 Speed (max) (Gbps) 8 Supply voltage (V) 2.5, 3.3 Rating Catalog Operating temperature range (°C) -40 to 85
Type Redriver Protocols PCIe1, PCIe2, PCIe3 Applications PCIe, SAS, SATA Number of channels 8 Speed (max) (Gbps) 8 Supply voltage (V) 2.5, 3.3 Rating Catalog Operating temperature range (°C) -40 to 85
WQFN (NJY) 54 55 mm² 10 x 5.5
  • Low 70 mW/Channel (Typ) Power Consumption,
    With Option to Power Down Unused Channels
  • Seamless Link Training Support
  • Advanced Configurable Signal Conditioning I/O
    • Receive CTLE up to ∼10 dB at 4 GHz
    • Linear Output Driver
    • Variable Output Voltage Range up to 1200
      mVp-p
  • Automatic Receiver Detect (Hot-Plug)
  • Ultra-Low Input-to-Output Latency: 80 ps (Typ)
  • Programmable via Pin Selection, EEPROM, or
    SMBus Interface
  • Single Supply Voltage: 2.5 V or 3.3 V
  • 4 kV HBM ESD Rating
  • −40°C to 85°C Operating Temperature Range
  • Flow-Thru Layout in 10 mm x 5.5 mm 54-Pin
    Leadless WQFN Package
  • Pin Compatible with DS80PCI800
  • Low 70 mW/Channel (Typ) Power Consumption,
    With Option to Power Down Unused Channels
  • Seamless Link Training Support
  • Advanced Configurable Signal Conditioning I/O
    • Receive CTLE up to ∼10 dB at 4 GHz
    • Linear Output Driver
    • Variable Output Voltage Range up to 1200
      mVp-p
  • Automatic Receiver Detect (Hot-Plug)
  • Ultra-Low Input-to-Output Latency: 80 ps (Typ)
  • Programmable via Pin Selection, EEPROM, or
    SMBus Interface
  • Single Supply Voltage: 2.5 V or 3.3 V
  • 4 kV HBM ESD Rating
  • −40°C to 85°C Operating Temperature Range
  • Flow-Thru Layout in 10 mm x 5.5 mm 54-Pin
    Leadless WQFN Package
  • Pin Compatible with DS80PCI800

The DS80PCI810 is an extremely low-power high-performance repeater/redriver designed to support eight channels carrying high speed interface up to 8 Gbps, such as PCIe Gen-1, 2, and 3. The receiver’s continuous time linear equalizer (CTLE) provides high frequency boost that is programmable from 2.7 to 9.5 dB at 4 GHz (8 Gbps) followed by a linear output driver. The CTLE receiver is capable of opening an input eye that is completely closed due to inter symbol interference (ISI) induced by interconnect medium such as board traces or twin axial-copper cables. The programmable equalization maximizes the flexibility of physical placement within the interconnect channel and improves overall channel performance.

When operating in PCIe applications, the DS80PCI810 preserves transmit signal characteristics, thereby allowing the host controller and the end point to negotiate transmit equalizer coefficients. This transparency in the link training protocol facilitates system level interoperability and minimizes latency.

The programmable settings can be applied easily via pin control, software (SMBus or I2C), or direct loading from an external EEPROM. In EEPROM mode, the configuration information is automatically loaded on power up, thereby eliminating the need for an external microprocessor or software driver.

The DS80PCI810 is an extremely low-power high-performance repeater/redriver designed to support eight channels carrying high speed interface up to 8 Gbps, such as PCIe Gen-1, 2, and 3. The receiver’s continuous time linear equalizer (CTLE) provides high frequency boost that is programmable from 2.7 to 9.5 dB at 4 GHz (8 Gbps) followed by a linear output driver. The CTLE receiver is capable of opening an input eye that is completely closed due to inter symbol interference (ISI) induced by interconnect medium such as board traces or twin axial-copper cables. The programmable equalization maximizes the flexibility of physical placement within the interconnect channel and improves overall channel performance.

When operating in PCIe applications, the DS80PCI810 preserves transmit signal characteristics, thereby allowing the host controller and the end point to negotiate transmit equalizer coefficients. This transparency in the link training protocol facilitates system level interoperability and minimizes latency.

The programmable settings can be applied easily via pin control, software (SMBus or I2C), or direct loading from an external EEPROM. In EEPROM mode, the configuration information is automatically loaded on power up, thereby eliminating the need for an external microprocessor or software driver.

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Technical documentation

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Type Title Date
* Data sheet DS80PCI810 Low-Power 8 Gbps 8-Channel Linear Repeater datasheet (Rev. A) PDF | HTML 06 Feb 2015
Technical article NVME and PCI Express: What’s the difference? PDF | HTML 11 Aug 2015
Technical article Differential pairs: four things you need to know about vias PDF | HTML 10 Jun 2015
Technical article Differential pairs: what you really need to know PDF | HTML 05 May 2015
Analog Design Journal Advanced linear equalization in multi-gigabit systems 28 Apr 2015
Analog Design Journal Analog Applications Journal 2Q 2015 28 Apr 2015
Application note Channel Tuning Made Easy Using Linear Repeaters for 10G and 12G Applications 20 Jan 2015
Application note Understanding EEPROM Programming for High Speed Repeaters and Mux Buffers 09 Oct 2014
Application note Advanced Linear Repeater Used in PCIe 3.0 Add-in Card Compliance Environment 02 Oct 2014
EVM User's guide DS80PCI810EVM User's Guide 03 Sep 2014

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