DS25BR440 Series

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

Catalog

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

Part	Supplier Device Package	Output	Signal Conditioning	Package / Case	Type	Current - Supply	Delay Time	Mounting Type	Number of Channels	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Max]	Voltage - Supply [Min]	Applications
Texas Instruments DS25BR440TSQX/NOPB	40-WQFN (6x6)	LVDS	Input Equalization Output Pre-Emphasis	40-WFQFN Exposed Pad	Buffer ReDriver	162 mA	400 ps	Surface Mount	4	85 °C	-40 °C	3.6 V	3 V	LVDS
Texas Instruments DS25BR440TSQ/NOPB	40-WQFN (6x6)	LVDS	Input Equalization Output Pre-Emphasis	40-WFQFN Exposed Pad	Buffer ReDriver	162 mA	400 ps	Surface Mount	4	85 °C	-40 °C	3.6 V	3 V	LVDS

Catalog

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

Key Features

• DC - 3.125 Gbps Low Jitter, Low Skew, Low Power OperationPin Selectable Transmit Pre-Emphasis and Receive Equalization Eliminate Data Dependant JitterWide Input Common Mode Voltage Range Allows DC-Coupled Interface to LVDS, CML and LVPECL DriversLOSCircuitry Detects Open Inputs FaultIntegrated 100Ω Input and Output Terminations8 kV ESD on LVDS I/O Pins Protects Adjoining ComponentsSmall 6 mm x 6 mm WQFN-40 Space Saving PackageAll trademarks are the property of their respective owners.DC - 3.125 Gbps Low Jitter, Low Skew, Low Power OperationPin Selectable Transmit Pre-Emphasis and Receive Equalization Eliminate Data Dependant JitterWide Input Common Mode Voltage Range Allows DC-Coupled Interface to LVDS, CML and LVPECL DriversLOSCircuitry Detects Open Inputs FaultIntegrated 100Ω Input and Output Terminations8 kV ESD on LVDS I/O Pins Protects Adjoining ComponentsSmall 6 mm x 6 mm WQFN-40 Space Saving PackageAll trademarks are the property of their respective owners.

Description

The DS25BR440 is a 3.125 Gbps Quad LVDS buffer optimized for high-speed signal routing and repeating over lossy FR-4 printed circuit board backplanes and balanced cables. Fully differential signal paths ensure exceptional signal integrity and noise immunity. The DS25BR440 features two levels of transmit pre-emphasis (PE) and two levels of receive equalization (EQ). Both of these features compensate for interconnect losses and ultimately maximize noise margin. A loss-of-signal (LOS) circuit monitors each input channel and a uniqueLOSpin is asserted when no signal is detected at that input. Wide input common mode range allows the switch to accept signals with LVDS, CML and LVPECL levels; the output levels are LVDS. A very small package footprint requires a minimal space on the board while the flow-through pinout allows easy board layout. Each differential input and output is internally terminated with a 100Ω resistor to lower device return losses, reduce component count and further minimize board space. The DS25BR440 is a 3.125 Gbps Quad LVDS buffer optimized for high-speed signal routing and repeating over lossy FR-4 printed circuit board backplanes and balanced cables. Fully differential signal paths ensure exceptional signal integrity and noise immunity. The DS25BR440 features two levels of transmit pre-emphasis (PE) and two levels of receive equalization (EQ). Both of these features compensate for interconnect losses and ultimately maximize noise margin. A loss-of-signal (LOS) circuit monitors each input channel and a uniqueLOSpin is asserted when no signal is detected at that input. Wide input common mode range allows the switch to accept signals with LVDS, CML and LVPECL levels; the output levels are LVDS. A very small package footprint requires a minimal space on the board while the flow-through pinout allows easy board layout. Each differential input and output is internally terminated with a 100Ω resistor to lower device return losses, reduce component count and further minimize board space.