Semtech GS2970

The GS2970 is a multi-rate SDI receiver which includes complete SMPTE processing, as per SMPTE 425M, 292M and SMPTE 259M-C. The GS2970 also performs audio-dembedding and integrates an audio clock generator.
The SMPTE processing features can be bypassed to support signals with other coding schemes.The device features an integrated reclocker with an internal VCO and a wide Input Jitter Tolerance (IJT) of 0.7UI.
A serial digital loop through output is provided, which can be configured to output either reclocked or non-reclocked serial digital data. The serial digital output can be connected to an external cable driver. The device operates in one of four basic modes: SMPTE mode, DVB-ASI mode, Data-Through mode or Standby mode.
In SMPTE mode, the GS2970 performs full SMPTE processing, and features a number of data integrity checks and measurement capabilities.
The device also supports ancillary data extraction, and can provide entire ancillary data packets through host-accessible registers. It also provides a variety of other packet detection and error handling features. All of these processing features are optional, and may be individually enabled or disabled through register programming.
Both SMPTE 425M Level A and Level B inputs are supported with optional conversion from Level B to Level A for 1080p 50/60 4:2:2 10-bit.
In DVB-ASI mode, 8b/10b decoding is applied to the received data stream.
In Data-Through mode all forms of SMPTE and DVB-ASI decoding are disabled, and the device can be used as a simple serial to parallel converter.
The device can also operate in a lower power Standby mode. In this mode, no signal processing is carried out and the parallel output is held static.
Parallel data outputs are provided in 20-bit or 10-bit format for 3Gb/s, HD and SD video rates, with a variety of mapping options. As such, this parallel bus can interface directly with video processor IC's, and can be multiplexed onto 10 bits for a low pin count interface.
Up to eight channels (two audio groups) of serial digital audio may be extracted from the video data stream, in accordance with SMPTE 272M-C and SMPTE 299M.
The output signal formats supported by the device include AES/EBU and I2S, and two other industry standard serial digital formats. A variety of audio processing features are provided to ease implementation. Necessary audio clocks are directly generated and provided by the device.
Overview
Features
- 配有低相位噪音集成式 VCO 的集成式时钟恢复器
- 集成式音频解嵌器,适用于 8 通道 48 kHz 音频
- 集成式音频时钟生成器
- 串行数字时钟恢复或非时钟恢复输出
- 运行速率为 2.970 Gb/s、2.970/1.001 Gb/s、1.485 Gb/s、1.485/1.001 Gb/s 和 270 Mb/s
- 支持 SMPTE 425M(A 级和 B 级)、SMPTE 424M、SMPTE 292M、SMPTE 259M-C 和 DVB-ASI
- 辅助数据提取
- 可选从 SMPTE 425M B 级到 A 级的 1080p 50/60 4:2:2 10 位转换
- 并行数据总线可选 20 位或 10 位
- 全面的错误检测和纠正功能
- 输出 H、V、F 或 CEA 861 定时信号
- 1.2 V 数字核心电源,1.2 V 和 3.3 V 模拟电源,可选 1.8 V 或 3.3 V I/O 电源
- GSPI 主机接口
- 工作温度范围为 -20°C 至 +85°C
- 低功耗运行(典型功耗为 350 mW)
- 小型 11 mm x 11 mm 100 焊球 BGA 封装
- 无铅且符合 ROHS 标准
Applications
- 监视器
- 摄像机控制单元
- 多画面显示器
- 生产切换器
- 主控切换器
- VTR
- 视频服务器
- 编码器/解码器
- 上/下/交叉变频器
- 音频解嵌器
- 格式检测器
- 测试和测量设备
Packaging
- GS2970-IBE3:无铅,符合 RoHS 标准,168 颗/盘
- GS2970-CBE3:无铅,符合 RoHS 标准,176 颗/盘
Order Codes
- 监视器
- 摄像机控制单元
- 多画面显示器
- 生产切换器
- 主控切换器
- VTR
- 视频服务器
- 编码器/解码器
- 上/下/交叉变频器
- 音频解嵌器
- 格式检测器
- 测试和测量设备