DS250DF230RTVR

Specialized Overview

The DS250DF230RTVR is a dual-channel multi-rate retimer from Texas Instruments, housed in a 32-pin WQFN package. It supports data rates ranging from 19.6 Gbps to 25.8 Gbps, including sub-rates such as 12.16512 Gbps and 9.8304 Gbps. The device operates on a single power supply of 2.375 V to 2.625 V with a typical active current consumption of 271 mA. Key electrical specifications include an input-to-output latency of 140 ps in raw mode and a propagation delay of 4.5 UI plus 175 ps with CDR enabled. It features adaptive CTLE and DFE equalization capable of compensating for up to 35-dB channel loss at 12.9 GHz.

Specialized Feature Summary

• Dual-channel architecture with independent locking capabilities across a wide range of serial data rates.
• Integrated signal conditioning combining adaptive continuous-time linear equalizer (CTLE) and decision feedback equalizer (DFE).
• Ultra-low latency design suitable for jitter cleaning and reach extension applications.
• Supports SMBus configuration and external EEPROM loading for system integration.

Specialized Applications

• Backplane and mid-plane reach extension
• Active cable assemblies
• Jitter cleaning for front-port optical interfaces
• Electrical interfaces compliant with 802.3bj 100GbE and InfiniBand EDR

Specialized Procurement Notes

Verify the specific ordering suffix RTVR to confirm the 32-pin QFN package variant. Ensure compatibility with the required operating temperature range of -40°C to +85°C. Confirm that the system power supply meets the 2.375 V to 2.625 V specification. Check for moisture sensitivity handling requirements during storage and assembly. Validate that the PCB layout adheres to the thermal pad connection guidelines for the RTV package.

Specialized Selection Notes

Select this component when a compact 32-pin QFN footprint is preferred over the NFBGA option. The RTVR package offers improved thermal performance compared to the ZLS variant, supporting higher PCB temperatures without a heat sink. Consider the integrated equalization features if significant channel loss compensation is required. Verify that the application benefits from the low-latency characteristics provided by the retimer architecture.

Specialized Part Context

This part belongs to the DS250DF230 family of multi-rate retimers designed for high-speed serial links. It serves as a signal conditioning solution for extending the reach of lossy interconnects. The device complements other interface components by providing robust clock and data recovery with minimal external component requirements.

Specialized Replacement Considerations

The DS250DF230ZLS is a pin-compatible alternative offering the same functionality in a 36-pin NFBGA package. Selection between these variants depends primarily on board space constraints and thermal management strategies rather than functional differences.