SN65LV1021DBR

Overview

The SN65LV1021DBR is a serializer component within the Texas Instruments SN65LV1021/SN65LV1212 chipset, designed for transmitting parallel data over LVDS differential backplanes. It accepts a system clock from 10 MHz to 40 MHz and converts 10-bit parallel LVTTL inputs into a serial stream at 12 times the clock frequency. The device operates on a supply voltage of 3 V to 3.6 V and supports an industrial temperature range of -40°C to 85°C. It features a 28-pin SSOP package and includes synchronization modes for rapid link initialization.

Feature Summary

• Supports rapid synchronization using internally generated SYNC patterns for deterministic lock times
• Enables random-lock synchronization for open-loop applications and hot insertion support
• Includes programmable edge trigger selection for both transmit and receive clocks
• Offers power-down and high-impedance modes to reduce consumption during idle states

Applications

• Serializing parallel data for transmission over LVDS differential backplanes
• Interconnecting systems requiring 10-bit bus expansion via twisted pair cabling
• High-speed data links where low jitter and deterministic lock are required

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current production status list. Confirm that the SSOP-28 package dimensions match the target PCB footprint requirements. Ensure the supply voltage rails remain within the 3 V to 3.6 V specification during operation. Check for RoHS compliance documentation if environmental regulations apply to the final assembly.

Selection Notes

Select this serializer when paired with the SN65LV1212 deserializer for complete 10:1 serdes functionality. Ensure the input clock source provides sufficient jitter performance below 150 ps RMS. Verify that the load capacitance on the LVDS outputs does not exceed the specified limits for transition time requirements. Consider the thermal dissipation characteristics of the SSOP package for the intended operating environment.

Part Context

This component belongs to the SN65LV1021 family of LVDS serializers manufactured by Texas Instruments. It functions as the transmitter side of a dedicated 10-bit serdes chipset, complementing the SN65LV1212 deserializer. The device is characterized for industrial temperatures and utilizes a standard 28-pin SSOP housing for compact integration.

Replacement Considerations

The SN65LV1021DBG4 serves as a lead-free compliant alternative within the same package and pinout configuration.