GV7704
The GV7704 is a quad channel serial digital video receiver for High Definition component video. With integrated high performance cable equalizer technology, the GV7704 is capable of receiving HD video at 270Mbps and 1.485Gbps over 75Ω coaxial cable, or differentially over a 100Ω twisted pair cable.
The GV7704 integrates the High Definition Visually Lossless CODEC (HD-VLC™) technology, which has been developed specifically to reduce the transmission data rate of HD video over both coaxial and unshielded twisted pair (UTP) cable. This is achieved by encoding the HD video, normally transmitted at a serial data rate of 1.485Gbps, to the same rate as Standard Definition (SD) video, at 270Mbps serial data rate.
At 270Mbps, the effect of cable loss is greatly reduced, resulting in much longer cable transmission. For 75Ω coaxial cable, cable reach can be extended up to four times the normal reach when transmitting encoded HD at 270Mbps. In typical video over coaxial installations, cable distances of up to 500m are possible.
The GV7704 can also be configured to receive HD video over UTP cable, such as Cat-5e and Cat-6 cable, when HD-VLC encoded at 270Mbps.
Features
- Quad channel serial digital video receiver for HD video surveillance and HDcctv applications
- Dual rate operation: 270Mbps and 1.485Gbps
- Backwards compatible with HDcctv 1.0 and HD-SDI
- Four independent receiver channels with high performance cable equalization, with support for 50/75Ω coaxial and twisted pair cable transmission
- Integrated High Definition Visually Lossless CODEC (HD-VLC™) for extended cable reach:
- 500m over 75-5 (5C) CCTV coax
- 300m over 75-3 (3C) CCTV coax
- 150m over Cat-5e/6 UTP cable
- Serial digital loop-though output per channel
- Integrated audio de-embedder for the extraction of up to 4 channels of I2S serial digital audio at 32kHz, 44.1kHz and 48kHz sample rates, per video channel
- Supports both 720p and 1080p HD formats:
- 1080p 25/29.97/30fps
- 720p 25/29.97/30/50/59.94/60fps
- Four 8/10-bit BT.1120 compliant output video interfaces, with embedded TRS and external HVF timing outputs
- Automatic independent detection of HD-SDI and HD-VLC video input data streams per channel
- Downstream ancillary data detection and extraction
- Automatic HDcctv Stream ID detection
- 4-wire Gennum Serial Peripheral Interface (GSPI 2.0) for external host command and control
- 1.2V core power supply with 1.8V digital I/O
- Small footprint 169-BGA (11mm x 11mm)
- Low power operation, typically 870mW
- Wide operating temperature range: -20ºC to +85ºC
- Pb-free and RoHS compliant
- HD Digital Video Recorders (DVR)
- HD Video Servers
- HD Video PC Capture Cards
- HD-SDI & HDcctv Peripherals
- HD Video Repeaters
- HD Video Converters
- HD Video Multiplexers
アプリケーション
Packaging
- 169-LBGA (176 pcs/tray)
Order Codes
- GV7704-IBE3
Pb(Lead)-Free/RoHS-Green Info
Related Parts
GV7704-IBE3
Datasheets & Documentation
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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