The M21528 is a very low power, highly integrated, dual cable driver for SMPTE compliant digital video applications. It can

drive 2 pairs of 75

capable of outputting SDI signals with jitter of 12 ps peak to peak, when operating at 2.97 Gbps.

The dual cable driver includes a 2x2 input crosspoint and integrated input and output termination resistors. The M21528,

with input equalization for up to 36” of FR4 trace in addition to two connectors and exceptional Output Return Loss

(ORL), is ideal for, high speed, 3G-SDI, designs.

The device features integrated supply regulators, allowing it to be powered from 1.8V, 2.5V, or 3.3V supply voltages.

When operating at 1.8V, it consumes only 40mW per channel at 2.97Gbps. Furthermore, the power rails for the input and

output circuitry are electrically isolated on-chip and as such may be connected to different voltage rails on the board.

This feature enables the M21528 to be DC coupled to any upstream device in the 1.2V to 3.3V range.

The integrated 2x2 crosspoint allows for either input to be routed to either output, eliminating the need for an external

multiplexer. Additionally, one input may be routed to both outputs. The cable driver also provides cable detect and Loss

of Signal (LOS) functionality. It can be configured to automatically power down at cable disconnect or loss of input

signal.

The M21528 is offered in a green and RoHS compliant, 4mm x 4mm, 24 pin QFN package.

Features

Benefits

Save board area and enable high density designs

Standard compliant solution

Save board area and enable high density designs

Enable robust, high speed, SDI design

Ω or 50Ω output termination

Save board area and enable high density designs

Ω input termination

Save board area and enable high density designs

Enable low power designs with minimal heat dissipation

Ease of high speed design and layout

Standard compliant solution

Save board area and enable high density designs

Reduce the number of external components required

cable disconnect and re-connect

Reduced power consumption

power up upon cable disconnect and re-connect

Reduced power consumption

Provides higher tolerance and additional design margin

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