GS2965
Not recommended for new designs.
Please use GS6151, GS3241 and GS3281 for new designs.
The GS2965 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 GS2965 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 GS2965 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 GS2965 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 GS2965 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 GS2965 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 GS2965 can be configured to either automatically or manually enter a bypass mode in order to pass the signal without reclocking.
The GS2965 is Pb-free, and the encapsulation compound does not contain halogenated flame retardant. This component and all homogeneous sub-components are RoHS compliant
Features
- SMPTE 424M, SMPTE 292M and SMPTE 259M-C compliant
- Single supply operation at 3.3V or 2.5V
- 180mW typical power consumption (213mW with RCO enabled) at 2.5V
- Input signal equalization and output-signal de-emphasis settings to compensate for board-trace dielectric losses
- Supports DVB-ASI at 270Mb/s
- 2:1 input multiplexer patented technology
- Choice of dual reclocked data outputs or one reclocked data output and one clock output
- Uses standard 27MHz crystal
- Differential inputs and outputs
- Support DC coupling to industry-standard differential logic
- On-chip 100? differential data input/output termination
- Selectable 400mVppd or 800mVppd output swing on each output
- Seamless interface to other Gennum products
- 4 wire SPI host interface for device configuration and monitoring
- Standard logic control and status signal levels
- Auto and Manual modes for rate selection
- Standards indication in Auto mode
- Lock Detect Output
- Mute, Bypass and Autobypass functions
- SD/HD indication output to control GS2978 or GS2988 dual slew-rate cable drivers
- Operating temperature range: -40°C to +85°C
- 32 pin 5mm x 5mm QFN package
- Pb-free and RoHS compliant
- Distribution Amplifiers
- Master Control Switchers
- Production Switchers
- Routers
- SMPTE 424M, SMPTE 292M and SMPTE 259M-C coaxial cable serial digital interfaces
- Test and Measurement Equipment
アプリケーション
Order Codes
- GS2965-INTE3: Lead-Free, RoHS Compliant, Tape and Reel-250 Pieces
- GS2965-INE3: Lead-Free, RoHS Compliant, Tray-490 Pieces
Pb(Lead)-Free/RoHS-Green Info
(-40°C to +85°C / 4000 cycles)
(50°C, 4000 Hrs)
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関連情報
To see more videos Videos
スタジアムの巨大スクリーンで野球の試合のアクションのリプレイを視聴する場合でも、大画面テレビで映画を視聴する場合でも、ノートパソコンでビデオをストリーミングする場合でも、高品質のオーディオビジュアル (AV) 体験が常に期待されています。デジタルAV伝送には、超高精細シリアルデジタルインターフェイス (UHD-SDI) と高解像度マルチメディアインターフェイス (HDMI) の2つの規格があります。UHD-SDIは、同軸または光ファイバーケーブルを介した非圧縮・非暗号化のデジタルAV信号の伝送を標準化します。HDMI は、HDMI準拠のソースからAVディスプレイに高解像度、高速デジタルマルチトラックオーディオおよび非圧縮ビデオ信号を送信するためのデジタルインターフェイスです。どちらも超高精細AV信号をソースからディスプレイに転送できますが、コンピューター、ゲーム機、Blu-ray/DVDプレーヤー、テレビ、プロジェクターなどの消費者向け機器の接続にはHDMIが好まれます。UHD-SDIは、ケーブル両端の物理的なロック機構で長距離伝送と堅牢な接続をサポートするため、プロの屋内/屋外ビデオ制作やテレビ放送などのハイエンドアプリケーションに適しています。UHD-SDI同軸ケーブルは最大300フィートの信号を転送できますが、HDMIケーブルは50フィート以内でも過度の信号劣化が問題となります。これら2つのインターフェイスは、HDMI-SDIまたはSDI-HDMIコンバーターを使って併用できます。例えば、図1のように、HDMIディスプレイはSDIストリームの信頼性監視に使用でき、この場合、特別に調整されたSDI固有のディスプレイを使用する必要がなくなります。
Circuit Protection for HDMI-SDI/SDI-HDMI…
今すぐ読むI designed my first product using the Serial Digital Interface (SDI) back in 1996, and little did I know that this fledgling coax-based video interface standard would dominate my career for the next 20+ years. Back then, SDI was limited to carrying Standard Definition (SD) digital video at 270 Megabits per second (Mbps), but would evolve to higher and higher data rates to carry High Definition 720p, 1080i and 1080p, and most recently 4K Ultra High Definition (UHD) video, at cable lengths that were not thought possible. The convenience of a low cost single conductor coaxial copper cable, capable of carrying 4K video up to 100m has meant that SDI has become the de facto AV connectivity of choice in markets such as broadcast, Pro AV, medical and surveillance.
今すぐ読む