Semtech GS2970A

The GS2970A is a multi-rate SDI Receiver which includes complete SMPTE processing, as per SMPTE 425M, 292 and SMPTE 259M-C. 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 default operating mode), the GS2970A 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 50/59.94/60 4:2:2 10-bit inputs.
In DVB-ASI mode, sync word detection, alignment and 8b/10b decoding is applied to the received data stream.
In Data-Through mode all forms of SMPTE and DVB-ASI processing 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 ICs, and output data 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 audio 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. Audio clocks are internally generated and provided by the device.
Overview
Features
- 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 292、SMPTE 259M-C 和 DVB-ASI
- 集成式时钟恢复器
- 集成式低相位噪音 VCO
- 串行数字时钟恢复或非时钟恢复环通输出
- 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
- 辅助数据提取
- 可选从 SMPTE 425M B 级到 A 级的 1080p 50/59.94/60 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 -20ºC 至 +85ºC
- 低功耗运行(典型功耗为 350mW)
- 小型 11 mm x 11 mm 100 焊球 BGA 封装
- 无铅且符合 RoHS 标准
Applications
- 单链路 (3G-SDI) 转双链路 (HD-SDI) 转换器
- 1080p 50/60 监视器
- 多格式下变频器
- 多输入视频监控系统
- 多格式音频解嵌模块
- 多格式数字磁带录像机/视频服务器
Packaging
- GS2970AIBTE3:无铅,符合 RoHS 标准,250 颗,卷带包装
- GS2970AIBE3:无铅,符合 RoHS 标准,168 颗/盘
Order Codes
- 单链路 (3G-SDI) 转双链路 (HD-SDI) 转换器
- 1080p 50/60 监视器
- 多格式下变频器
- 多输入视频监控系统
- 多格式音频解嵌模块
- 多格式数字磁带录像机/视频服务器