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电缆均衡器

Semtech GS3140

3G-SDI 超低功耗自适应电缆均衡器

The GS3140 is a high-speed BiCMOS device designed to equalize and restore signals received over cable.

The device is designed to support SMPTE ST 424, SMPTE ST 292, SMPTE ST 259 and AES10 (MADI), and it is optimized for performance at 125Mb/s, 270Mb/s, 1.485Gb/s, and 2.97Gb/s.

The device supports MADI serial signals at 125Mb/s with peak-to-peak launch amplitude between 300mVppd and 600mVppd (with AES10 spec rise and fall times) and 800mVppd±10% (with SD-SDI rise and fall times).

概览

功能

Multi-standard operation at rates between 1Mb/s and 2.97Gb/s
SMPTE ST 424, SMPTE ST 292 and SMPTE ST 259 compliant
AES10 (MADI) compatible
Industry leading cable reach, with automatic cable equalization for different lengths of cable
Performance optimized for 125Mb/s, 270Mb/s, 1.485Gb/s, and 2.97Gb/s. Typical equalized length of Belden 1694A cable up to:
- 200m at 2.97Gb/s
- 280m at 1.485Gb/s
- 速率为 270Mb/s 时长度为 500m
1.8V core power supply
Typical power consumption of 84mW when DC-coupled at 1.2V with OUTPUT_SWING = 0011b
Ultra-low power mode for shorter cable reach applications
Upstream launch swing compensation from 250mVppd to 1Vppd in approximately 50mVppd steps (Default 750mVppd)
Auto/Manual bypass (useful for low data rates with slow rise/fall times)
Robust, noise-immune signal detection with squelch threshold adjustment
Auto/Manual control of SLEEP/MUTE/DISABLE OUTPUT modes
Data Rate detection and indication
Digital cable length indication (CLI)
Differential output supports DC-coupling from 1.2V to 2.5V CML logic and AC-coupling for other logic
families
Programmable/Rate-dependent output de-emphasis level and delay
Host interface for status and control
3kV HBM ESD protection on all pins
工作温度范围宽（-40℃ 至 +85℃）
Small footprint QFN–COL package (16-pin, 4mm x 4mm)
无铅且符合 RoHS 标准
Pin-compatible with the GS6140