HD/SD SDI Adaptive Cable Equalizer 25-Pin uArray T/R

The LMH0344 3-Gbps HD – SD SDI 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.The LMH0344 device implements DC restoration to correctly handle pathological data conditions. The equalizer may be driven in either a single-ended or differential configuration.Additional features include separate carrier detect and output mute pins which may be tied together to mute the output when no signal is present. A programmable mute reference is provided to mute the output at a selectable level of signal degradation.For applications using the4:4:4:4 10 bits video format, the LMH0394 cable equalizer will provide better performance.The device is available in two space-saving packages: a 4-mm × 4-mm 16-pin WQFN and even more space-efficient 3-mm × 3-mm 25-ball CS-BGA package.

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 120 Meters of Belden 1694A at
2.97 Gbps, up to 140 Meters of Belden 1694A at
1.485 Gbps, or up to 400 Meters of Belden 1694A
at 270 Mbps

Equalizes up to 120m of Belden 1694A at 2.97
Gbps With 0.3 UI Maximum Output Jitter

Manual Bypass and Output Mute With a
Programmable Threshold

Single-Ended or Differential Input

50-O Differential Outputs (Internal 50-O Pullups)

Single 3.3-V Supply Operation

280-mW Typical Power Consumption

16-Pin WQFN or 25-Ball CS-BGA Package

Industrial Temperature Range: –40°C to +85°C

HBM ESD Rating: 8 kV

WQFN Version Footprint Compatible With the
LMH0044, LMH0384, and LMH0074

Replaces the Semtech GS2974A or GS2974B