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Semtech
GV7704
Final Data Sheet Rev.5
PDS-060376 June 2016
GV7704
Quad HD-VLC™ Receiver
www.semtech.com
Key Features
• Quad channel serial digital video receiver for HD and
3G video surveillance and HDcctv applications
• Quad rate operation: 270Mb/s, 540Mb/s, 1.485Gb/s,
and 2.97Gb/s
• Supports HDcctv 1.0, HD-SDI (ST 292), 3G-SDI (ST 424),
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:
HD over 550m of Belden 543945 CCTV coax at
270Mb/s
Full HD over 300m of Belden 543945 CCTV coax at
540Mb/s
HD over 150m of Cat-5e/6 UTP cable at 270Mb/s
• Serial digital loop-though output per channel
• Integrated audio de-embedder for the extraction of up
to 4 channels of I
2
S serial digital audio at 32kHz,
44.1kHz and 48kHz sample rates, per video channel
• Supports both 720p and 1080p HD formats:
Full HD: 1080p50/59.94/60fps
HD: 1080p25/29.97/30fps
HD: 720p25/29.97/30/50/59.94/60fps
• 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
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 compressed video at 270Mb/s or
540Mb/s, or uncompressed at 1.485Gb/s or 2.97Gb/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
550m Belden 543945
Coaxial Cable
GV7700
Transmitter
HD-VLC™ Camera
HD-VLC™ DVR
HD Video
CODEC
HDMI
Output
HD-SDI or
HD-VLC
Cameras
GV7704
Quad
Receiver
Image
Signal
Processor
HD Sensor
GV7700
Transmitter
Power
Sink
Power
Source
RS422
RS422
IN1
IN2
IN3
IN4
150m Cat-5e/6 Cable
HD-VLC™ DVR
HD-VLC™
Camera
HDD
Storage
GV7704
Quad
Receiver
Coaxial Cable Application
UTP Cable Application
HD at 270Mb/s
HD at 270Mb/s
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