DS90CR281MTDX

Specialized Overview

The DS90CR281MTDX is a transmitter component within the Channel Link family, designed to serialize parallel data for high-speed transmission. It accepts 28 bits of CMOS/TTL input data and converts them into four Low Voltage Differential Signaling (LVDS) data streams. A phase-locked transmit clock is sent in parallel over a fifth LVDS link. At a 40 MHz clock frequency, the device achieves a total throughput of 1.12 Gbit/s. The unit operates on a 5V supply voltage with an operating temperature range from -10°C to +70°C. It utilizes a 56-lead TSSOP package.

Specialized Feature Summary

• Reduces cable size by multiplexing 28-bit parallel data onto five LVDS pairs
• Supports ground shifting via a ±1V common mode input range
• Includes a dedicated power down mode for low current consumption
• Features rising edge data strobe synchronization

Specialized Applications

• High-speed point-to-point data transmission links
• Systems requiring significant reduction in interconnect cable width
• Applications utilizing Twin-Coax or flat ribbon cabling for short to medium distances

Specialized Procurement Notes

Verify the manufacturer origin as this part originates from National Semiconductor, which was acquired by Texas Instruments. Confirm that the specific MTDX suffix matches the required tape and reel packaging format for your assembly line. Ensure the datasheet version aligns with the legacy documentation standards prior to the full transition to TI nomenclature.

Specialized Selection Notes

Select this component when a system requires converting wide parallel buses into a serialized differential interface to minimize connector count and cable bulk. It is suitable for applications where a 5V logic interface is preferred over lower voltage standards. Ensure the design accommodates the specific 56-lead TSSOP footprint and provides adequate decoupling for the PLL circuitry.

Specialized Part Context

This device belongs to the DS90CR281/DS90CR282 Channel Link chipset series. It functions specifically as the transmitter side, working in conjunction with the DS90CR282 receiver. The technology focuses on reducing the physical footprint of high-speed parallel interfaces by serializing data across a minimal number of differential pairs.

Specialized Replacement Considerations

The DS90CR281MTD/NOPB is listed as a similar replacement option.