DS25BR100

ACTIVE

3.125-Gbps LVDS buffer with transmit pre-emphasis and receive equalization

Product details

Function Buffer, Equalizer Protocols CML, LVDS, LVPECL Number of transmitters 1 Number of receivers 1 Supply voltage (V) 3.3 Signaling rate (MBits) 3125 Input signal CML, LVCMOS, LVDS, LVPECL Output signal LVDS Rating Catalog Operating temperature range (°C) -40 to 85
Function Buffer, Equalizer Protocols CML, LVDS, LVPECL Number of transmitters 1 Number of receivers 1 Supply voltage (V) 3.3 Signaling rate (MBits) 3125 Input signal CML, LVCMOS, LVDS, LVPECL Output signal LVDS Rating Catalog Operating temperature range (°C) -40 to 85
WSON (NGQ) 8 9 mm² 3 x 3
  • DC - 3.125 Gbps Low Jitter, High Noise Immunity, Low Power Operation
  • Receive Equalization Reduces ISI Jitter Due to Media Loss
  • Transmit Pre-Emphasis Drives Lossy Backplanes and Cables
  • On-Chip 100Ω Input and Output Termination:
    • Minimizes Insertion and Return Losses
    • Reduces Component Count
    • Minimizes Board Space
  • DS25BR101 Eliminates On-Chip Input Termination for Added Design Flexibility
  • 7 kV ESD on LVDS I/O Pins Protects Adjoining Components
  • Small 3 mm x 3 mm WSON-8 Space Saving Package

All trademarks are the property of their respective owners.

  • DC - 3.125 Gbps Low Jitter, High Noise Immunity, Low Power Operation
  • Receive Equalization Reduces ISI Jitter Due to Media Loss
  • Transmit Pre-Emphasis Drives Lossy Backplanes and Cables
  • On-Chip 100Ω Input and Output Termination:
    • Minimizes Insertion and Return Losses
    • Reduces Component Count
    • Minimizes Board Space
  • DS25BR101 Eliminates On-Chip Input Termination for Added Design Flexibility
  • 7 kV ESD on LVDS I/O Pins Protects Adjoining Components
  • Small 3 mm x 3 mm WSON-8 Space Saving Package

All trademarks are the property of their respective owners.

The DS25BR100 and DS25BR101 are single channel 3.125 Gbps LVDS buffers optimized for high-speed signal transmission over lossy FR-4 printed circuit board backplanes and balanced metallic cables. Fully differential signal paths ensure exceptional signal integrity and noise immunity.

The DS25BR100 and DS25BR101 feature transmit pre-emphasis (PE) and receive equalization (EQ), making them ideal for use as a repeater device. Other LVDS devices with similar IO characteristics include the following products. The DS25BR120 features four levels of pre-emphasis for use as an optimized driver device, while the DS25BR110 features four levels of equalization for use as an optimized receiver device. The DS25BR150 is a buffer/repeater with the lowest power consumption and does not feature transmit pre-emphasis nor receive equalization.

Wide input common mode range allows the receiver to accept signals with LVDS, CML and LVPECL levels; the output levels are LVDS. A very small package footprint requires minimal space on the board while the flow-through pinout allows easy board layout. On the DS25BR100 the differential input and output is internally terminated with a 100Ω resistor to lower return losses, reduce component count and further minimize board space. For added design flexibility the 100Ω input terminations on the DS25BR101 have been eliminated. This elimination enables a designer to adjust the termination for custom interconnect topologies and layout.

The DS25BR100 and DS25BR101 are single channel 3.125 Gbps LVDS buffers optimized for high-speed signal transmission over lossy FR-4 printed circuit board backplanes and balanced metallic cables. Fully differential signal paths ensure exceptional signal integrity and noise immunity.

The DS25BR100 and DS25BR101 feature transmit pre-emphasis (PE) and receive equalization (EQ), making them ideal for use as a repeater device. Other LVDS devices with similar IO characteristics include the following products. The DS25BR120 features four levels of pre-emphasis for use as an optimized driver device, while the DS25BR110 features four levels of equalization for use as an optimized receiver device. The DS25BR150 is a buffer/repeater with the lowest power consumption and does not feature transmit pre-emphasis nor receive equalization.

Wide input common mode range allows the receiver to accept signals with LVDS, CML and LVPECL levels; the output levels are LVDS. A very small package footprint requires minimal space on the board while the flow-through pinout allows easy board layout. On the DS25BR100 the differential input and output is internally terminated with a 100Ω resistor to lower return losses, reduce component count and further minimize board space. For added design flexibility the 100Ω input terminations on the DS25BR101 have been eliminated. This elimination enables a designer to adjust the termination for custom interconnect topologies and layout.

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Technical documentation

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Type Title Date
* Data sheet DS25BR100/101 3.125Gbps LVDS Buffer w/Transmit Pre-Empha & Rcve Equalization datasheet (Rev. F) 14 Apr 2013
Application note LVDS Repeaters and Crosspoints Extend the Reach of FPD-Link II Interfaces (Rev. A) 29 Apr 2013
Application note AN-1957 LVDS Signal Conditioners Reduce Data-Dependent Jitter (Rev. A) 26 Apr 2013
User guide SMA to RJ45 Adapter Board User Guide 26 Jan 2012
User guide 3.125 Gbps LVDS Buffers with Pre-emphasis and Equalization User Guide 25 Jan 2012

Design & development

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Evaluation board

DS25BR100EVK — 3.125 Gbps LVDS Single Channel Buffers with Transmit Pre-emphasis and Receive Equalization family

The DS25BR100EVK is an evaluation kit designed for demonstrating performance of the 3.125 Gbps LVDS Single Channel Buffers with Transmit Pre-Emphasis (PE) and Receive Equalization (EQ) family (DS25BR100, DS25BR110 and DS25BR120). The evaluation kit provides all three devices on a single board and (...)

User guide: PDF
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Simulation model

DS25BR100 IBIS Model

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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WSON (NGQ) 8 View options

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