Semtech GS2986

The GS2986 is a multi-rate serial digital reclocker designed to automatically recover the embedded clock from a digital video signal and retime the incoming video data.
It will recover the embedded clock signal and retime the data from a SMPTE 424M, SMPTE 292M, or SMPTE 259M-C compliant digital video signal.
A serial host interface provides the ability to configure and monitor multiple GS2986 devices in a daisy-chain configuration.
Adjustable input trace equalization (EQ) for up to 40" of FR4 trace losses, and adjustable output de-emphasis (DE) for up to 20" of FR4 trace losses, can be configured via the host interface.
The GS2986 can operate in either auto or manual rate selection mode. In Auto mode, the device will automatically detect and lock onto incoming SMPTE SDI data signals at any supported rate. For single rate data systems, the GS2986 can be configured to operate in Manual mode. In both modes, the device requires only one external crystal to set the VCO frequency when not locked and provides adjustment free operation.
The GS2986 accepts industry-standard differential input levels including LVPECL and CML. The differential data and clock outputs feature selectable output swing via the host interface, ensuring compatibility with most industry-standard, terminated differential receivers.
The GS2986 features dual differential outputs. The second output can be configured to emit either the recovered clock signal or the re-timed video data. This output can also be disabled to save power.
In systems which require passing of non-SMPTE data rates, the GS2986 can be configured to either automatically or manually enter a bypass mode in order to pass the signal without reclocking.
The GS2986 is Pb-free, and the encapsulation compound does not contain halogenated flame retardant. This component and all homogeneous sub-components are RoHS compliant.
Overview
Features
- 兼容 SMPTE 424M、SMPTE 292M 和 SMPTE 259M-C
- 3.3 V 或 2.5 V 单电源运行
- 2.5 V 时典型功耗为 180 mW(启用 RCO 时为 213 mW)
- 支持速率达 270 Mbps 的 DVB-ASI
- 输入信号均衡和输出信号去加重设置,可补偿电路板迹线介质损耗
- 4:1 输入多路复用器专利技术
- 可选两个时钟恢复数据输出或一个时钟恢复数据输出和一个时钟输出
- 使用标准 27 MHz 晶体
- 级联晶体缓冲器支持使用同一个晶体的多个时钟恢复器
- 差分输入和输出
- 支持直流耦合至工业标准差分逻辑
- 芯片级 100Ω 差分数据输入/输出终端
- 每个输出可选 400 mVppd 或 800 mVppd 输出摆幅
- 提供与其他 Gennum® 产品的无缝接口
- 4 线 SPI 主机接口用于设备配置和监控
- 标准逻辑控制和状态信号位准
- 自动和手动速率选择模式
- 自动模式标准指示
- 锁定检测输出
- 静音、旁路和自动旁路功能
- SD/HD 指示输出可控制 GS2978 或 GS2988 双压摆率电缆驱动器
- 工作温度范围:-40°C to +85°C
- 小型 QFN 封装 (6mm x 6mm)
- 无铅且符合 RoHS 标准
Applications
- 分配放大器
- 主控切换器
- 生产切换器
- 路由器
- SMPTE 424M、SMPTE 292M 和 SMPTE 259M-C 同轴电缆串行数字接口
- 测试和测量设备
Packaging
- GS2986-INTE3Z:无铅,符合 RoHS 标准,2500 颗,卷带包装
- GS2986-INTE3:无铅,符合 RoHS 标准,250 颗,卷带包装
- GS2986-INE3:无铅,符合 RoHS 标准,490 颗/盘
Order Codes
- 分配放大器
- 主控切换器
- 生产切换器
- 路由器
- SMPTE 424M、SMPTE 292M 和 SMPTE 259M-C 同轴电缆串行数字接口
- 测试和测量设备