GS3281中文资料电缆驱动器数据手册Semtech规格书

描述 Description

The GS3281 is a low-power, multi-rate, re-timing cable driver supporting rates up to 3G-SDI. It is designed to receive 100Ω differential input signals, automatically recover the embedded clock from the digital video signal and re-time the incoming data, and transmit the re-timed signal over 75Ω coaxial cables. The 100Ω trace input supports up to 17dB of insertion loss.The device supports SMPTE ST 424 (3G SDI), ST 292-1 (HD-SDI) and ST 259 (SD-SDI). In addition to standard SMPTE rates, the device also supports re-timing of DVB-ASI at 270Mb/s, and MADI at 125Mb/s. The two cable drivers have highly configurable pre-emphasis and swing controls to compensate for long trace and connector losses. Additionally, automatic and user selectable output slew rate control is provided for each cable driver output.

特性 Features

·Dual non-inverted 75Ω cable interface with on-chip termination

\t·SMPTE ST 424, ST 292-1 and ST 259 compliant input/output

\t·Multi-standard operation from 1Mb/s to 2.97Gb/s

\t·In addition to standard SMPTE rates, the device also supports re-timing of DVB-ASI at 270Mb/s, and MADI at 125Mb/s.

\t·Cable driver features:
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\t\t\t·Wide swing control

\t\t\t·Pre-emphasis to compensate for significant insertion loss between device output and BNC

\t\t\t·Automatic/manual output slew rate control

\t\t\t·Manual or automatic re-timer bypass

\t\t\t·Manual or automatic Mute or disable on LOS

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\t·Trace equalizer features:
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\t\t\t·Integrated 100Ω, differential input termination

\t\t\t·Automatic power down on loss of signal

\t\t\t·Adjustable carrier detect threshold

\t\t\t·DC-coupling from 1.2V to 2.5V CML logic

\t\t\t·Trace equalization to compensate for up to 60” FR4 at 2.97Gb/s

\t\t\t·Automatic input offset compensation

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\t·CDR features:
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\t\t\t·Manual or automatic rate modes

\t\t\t·Wide Loop bandwidth control

\t\t\t·Re-timing at the following data rates: 125Mb/s, 270Mb/s, 1.485Gb/s, and 2.97Gb/s. This includes the f/1.001 rates.

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\t·Additional Features:
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\t\t\t·Single 1.8V power supply for analog and digital core

\t\t\t·2.5V or 3.3V for cable driver output supply

\t\t\t·GSPI serial control and monitoring interface

\t\t\t·Four configurable GPIO pins for control or status monitoring

\t\t\t·Wide operating temperature range: -40°C to +85°C

\t\t\t·Small 6mm × 4mm 40-pin QFN

\t\t\t·Pb-free/Halogen-free/RoHS and WEEE compliant package

\t\t\t·Pin compatible with the GS12181, GS12182, GS12081, and GS12281