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Details for Texas Instruments


DS125BR820EVM: 12.5 Gbps 8-Channel Repeater with Equalization Evaluation Module
Buy Directly from Texas Instruments (6 in Stock)
$399.0000 per unit
Series Information for DS125BR820EVM - Texas Instruments


  • feature
    Advanced Configurable Signal Conditioning I/O u2013 Receive CTLE up to 10 dB at 6 GHz u2013 Linear Output Driver u2013 Variable Output Voltage Range up to 1200 mVp-p
  • feature
    Enables Host ASIC to Meet Front-Port Eye Mask Requirements over Longer Reach
  • feature
    Flow-Thru Layout in 10 mm u00d7 5.5 mm 54-Pin
  • feature
    Low 70 mW/Channel (Typ) Power Consumption, with Option to Power Down Unused Channels
  • feature
    Programmable via Pin Selection, EEPROM, or SMBus Interface
  • feature
    Seamless Link Training Support
  • feature
    Single Supply Voltage: 2.5 V or 3.3 V
  • feature
    u221240u00b0C to 85u00b0C Operating Temperature Range


The DS125BR820 is an extremely low-power highperformance repeater/redriver designed to support eight channels carrying high speed interface up to 12.5 Gbps, such as 40G-CR4, 40G-KR4, SAS/SATA, and PCIe. The receiver's continuous time linear equalizer (CTLE) provides high frequency boost that is programmable from 3 to 10 dB at 6 GHz (12 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 40G-CR4/KR4, SAS/SATA, and PCIe applications, the DS125BR820 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.


Silicon Manufacturer:
Texas Instruments
Silicon Core Number:
Kit Application Type:
Application Sub Type:
Kit Contents:
Eval Board DS125BR820
Product Range:
No SVHC (27-Jun-2018)
Upto 12.5Gbps 8 Channel Unidirectional Repeater High BW Linear Equalization & O/P Driver SMBus

Alternate Descriptions

Avnet America

DS125BR820 Repeater with Equalization Evaluation Module

Avnet America product

Avnet Europe

DS125BR820 Repeater with Equalization Evaluation Module

Avnet Europe product

Texas Instruments

DS125BR820EVM: 12.5 Gbps 8-Channel Repeater with Equalization Evaluation Module

Texas Instruments product