概览

Please use GS2994, GS3440 and GS3140 for new designs.

The GS1674 is a high-speed BiCMOS integrated circuit designed to equalize and restore signals received over 75ohm coaxial cable. The device is optimized for performance at 270Mbps and 1.485Gbps, and features DC restoration to compensate for the DC content of SMPTE pathological test patterns.

The Carrier Detect output pin (CD) indicates whether a valid input signal has been detected. It can be connected directly to the MUTE pin to mute the output on loss of carrier. The sensitivity of the carrier detect can be easily programmed to allow the GS1674 to distinguish between low-amplitude SDI signals and noise at the input of the device. The equalizing and DC restore stages are disengaged when the BYPASS pin is HIGH. No equalization occurs in Bypass mode.

The GS1674 is footprint and drop-in compatible with existing GS1574A and LMH0044 designs, with no additional application changes required.

订购代码

GS1674-INTE3: Lead-Free, RoHS Compliant, Tape and Reel-250 Pieces

PB Free/ROHS

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功能

Replaces the LMH0044
SMPTE 292M, SMPTE 344M and SMPTE 259M compliant
自动电缆均衡
Performance optimized for 270Mbps and 1.485Gbps.
Belden 1694A 电缆典型均衡电缆长度：
- 220m at 1.485Gbps
- 速率为 270Mbps 时长度为 400m
Supports DVB-ASI at 270Mbps
手动旁路（适用于具有缓慢上升/下降时间的低数据速率）
可编程的载波检测和抑制阀值调节
标准 EIA/JEDEC 逻辑控制和状态信号水平
3.3 V 单电源运行
195mW 功耗（典型值）
Wide temperature range of -40ºC to +85ºC
小型 QFN 封装 (4 mm x 4 mm)
Drop-in compatible with the GS1574A. Forward compatible with Gennum's 3G EQ products.
无铅且符合 RoHS 标准