GV7704 Datasheet, PDF (1/52 Pages) Semtech Corporation – Quad HD-VLC Receiver

GV7704
Quad HD-VLC™ Receiver
Key Features
• Quad channel serial digital video receiver for HD video
surveillance and HDcctv applications
• Dual rate operation: 270Mb/s and 1.485Gb/s
• Supports HDcctv 1.0, HD-SDI (ST 292) and
SD-SDI (ST 259)*
• 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:
Š 550m over Belden 543945 CCTV coaxial cable
Š 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:
Š 1080p 25/29.97/30fps
Š 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
• JTAG test interface
• 1.2V core voltage power supplies
• 1.8V digital I/O power supply
• Small footprint 169-BGA (11mm x 11mm)
• Low power operation, typically 810mW
• Wide operating temperature range: -20°C to + 85°C
• Pb-free and RoHS compliant
Applications
• Digital video recorders (DVR)
• Video servers
• Video multiplexers
• Video PC capture cards
• HDcctv peripherals
Coaxial Cable Application
HD-VLC™ Camera
HD Sensor
Image
Signal
Processor
GV7700
Transmitter
550m Belden 543945
Coaxial Cable
HD at 270Mb/s
HD-SDI or
HD-VLC
Cameras
HD-VLC™ DVR
GV7704
Quad
Receiver
HD Video
CODEC
HDD
Storage
HDMI
Output
UTP Cable Application
HD-VLC™
Camera
Power
Sink
GV7700
Transmitter
RS422
150m Cat-5e/6 Cable
HD at 270Mb/s
Power
Source _{HD-VLC™ DVR}
IN1
IN2
RS422 IN3
IN4
GV7704
Quad
Receiver
Description
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 270Mb/s and 1.485Gb/s
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 1.485Gb/s, to the same
rate as Standard Definition (SD) video, at 270Mb/s serial
data rate.
At 270Mb/s, 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 3x the
normal reach when transmitting encoded HD at 270Mb/s.
In typical video over coaxial installations, cable distances of
up to 550m are possible.
GV7704
Preliminary Data Sheet Rev.3
PDS-060376
September 2015
www.semtech.com
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