1 Features

1• Compliant With ST 424, ST 292, ST 344, and ST

259

• Supports DVB-ASI at 270 Mbps

• Wide Range of Data Rates: 125 Mbps to 2.97

Gbps

• Equalizes up to 140 Meters of Belden 1694A at

2.97 Gbps, up to 200 Meters of Belden 1694A at

1.485 Gbps, or Up to 400 Meters of Belden 1694A

at 270 Mbps

• Power Save Mode With Auto Sleep Control (35

mW Typical Power Consumption in Power Save

Mode)

• Optional SPI Register Access

• Manual Bypass and Output Mute With a

Programmable Threshold

• Internally Terminated 100-Ω LVDS Outputs With

SPI Programmable Output Common-Mode

Voltage and Swing

• Programmable Launch Amplitude Optimization in

SPI Mode

• Cable Length Indicator in SPI Mode

• Single 3.3-V Supply Operation

• 16-Pin WQFN Package

• Industrial Temperature Range: −40°C to +85°C

• Footprint Compatible With the LMH0344,

LMH0044, and LMH0074 in Pin Mode

2 Applications

• ST 424, ST 292, ST 344, and ST 259 Serial

Digital Interfaces

• Serial Digital Data Equalization and Reception

• Data Recovery Equalization (1)

3 Description

The LMH0384 3-Gbps HD - SD SDI Extended Reach

and Configurable Adaptive Cable Equalizer is

designed to equalize data transmitted over cable (or

any media with similar dispersive loss

characteristics). The equalizer operates over a wide

range of data rates from 125 Mbps to 2.97 Gbps and

supports ST 424, ST 292, ST 344, and ST 259

standards.

The LMH0384 device includes active sensing

features and design enhancements including longer

cable equalization, lower output jitter, configurable pin

mode and SPI modes, a power-saving sleep mode,

and programmable output common-mode voltage and swing. The LMH0384 implements DC restoration to

correctly handle pathological data conditions.

The LMH0384 includes an auto sleep mode to power

down the device when no input signal is detected.

Other features include separate carrier detect and

output mute pins which may be tied together to mute

the output when no input signal is present, and a

programmable mute reference which may be used to

mute the output at a selectable level of signal degradation.

The LMH0384 supports two modes of operation. In pin mode (non-SPI mode) the LMH0384 is footprint

compatible with the LMH0344 and legacy SDI

equalizers. In the optional SPI mode, the LMH0384

provides register access to all of its features along

with a cable length indicator, programmable output common-mode voltage and swing, and launch

amplitude optimization.