DS25CP104TSQX/NOPB

Overview

The DS25CP104TSQX/NOPB is a 3.125 Gbps 4x4 LVDS digital crosspoint switch designed for high-speed signal routing over lossy FR-4 backplanes and balanced cables. It features fully differential signal paths with non-blocking architecture, allowing any input to connect to any output. The device supports configurable transmit pre-emphasis and receive equalization via external pins or an SMBus interface. It accepts LVDS, CML, and LVPECL inputs while providing LVDS outputs. Integrated on-chip 100Ω termination minimizes insertion losses and board space requirements.

Feature Summary

• Non-blocking 4x4 architecture enables flexible signal routing between any input and output
• Configurable transmit pre-emphasis and receive equalization mitigate ISI jitter
• Wide input common mode range accommodates LVDS, CML, and LVPECL signal levels
• Integrated LOS circuitry detects open input fault conditions

Applications

• SD/HD/3GHD SDI routers
• OC-48 / STM-16 systems
• Fibre Channel (2GFC)
• InfiniBand and FireWire interfaces

Procurement Notes

Verify the component origin as Texas Instruments acquired National Semiconductor assets. Confirm the specific suffix matches the datasheet configuration. Ensure environmental compliance documentation aligns with project requirements. Validate package integrity upon receipt.

Selection Notes

Select this component for applications requiring low skew and jitter in high-speed digital routing. Consider the LLP-40 package constraints during layout. Evaluate power consumption against system thermal limits. Verify SMBus addressability if multiple units are deployed.

Part Context

This part belongs to the DS25CP104 series of analog and digital crosspoint ICs. It is optimized for signal integrity in demanding interconnect environments. The device integrates control logic and signal conditioning into a compact footprint.

Replacement Considerations

Consult official substitution lists for equivalent crosspoint switches. Verify pin compatibility and electrical specifications before replacement.

FAQ

How is the switch configuration managed?

Configuration is handled via external select pins or through the System Management Bus (SMBus) interface.

What input signal levels are supported?

The device accepts LVDS, CML, and LVPECL signals due to its wide input common mode range.