GV7700 Product Brief.fm

GV7700
HD-VLC™ Transmitter
Key Features
Applications
•
Serial digital video transmitter for HD video
surveillance and HDcctv applications
•
HD security cameras
•
Industrial cameras
•
Dual rate operation: 270Mb/s and 1.485Gb/s
•
HD-SDI and HDcctv peripherals
•
Supports HDcctv 1.0, HD-SDI (ST 292) and
•
Media converters
SD-SDI (ST 259)1
•
Video multiplexers
•
Integrated High Definition Visually Lossless CODEC
(HD-VLC™) for extended cable reach:
Š 550m over Belden 543945 CCTV coax
Coaxial Cable Application
HD-VLC™ Camera
HD Sensor
Image
Signal
Processor
Š 150m over Cat-5e/6 UTP cable
•
•
Configurable 50/75Ω cable driver output, for both
coaxial and twisted pair cable transmission
HD-VLC™ DVR
550m Belden 543945
Coaxial Cable
GV7700
Transmitter
HD at 270Mb/s
GV7704
Quad
Receiver
HD-SDI or
HD-VLC
Cameras
HDD
Storage
HD Video
CODEC
HDMI
Output
UTP Cable Application
Integrated audio embedder with support for up to 4
HD-VLC™
Camera
Power
Sink
150m Cat-5e/6 Cable
Power
Source
HD-VLC™ DVR
2
channels of I S serial digital audio at 32kHz, 44.1kHz
and 48kHz sample rates
•
Downstream ancillary data insertion
•
Supports both 720p and 1080p HD formats:
IN1
IN2
RS422
IN3
GV7704
Quad
Receiver
IN4
Description
Š 720p 25/29.97/30/50/59.94/60fps
•
Support for both 8/10-bit and 16/20-bit BT.1120
compliant video interfaces, with embedded TRS or
external HVF timing
•
4-wire Gennum Serial Peripheral Interface (GSPI 2.0) for
external host command and control
•
Dedicated JTAG test interface
•
1.8V core power supply and 1.8V or 3.3V digital I/O
supply
•
Small-footprint 84-pin dual-row QFN (7mm x 7mm)
•
Low power operation, typically 180mW
•
Wide operating temperature range: -20°C to + 85°C
•
Pb‐free and RoHS compliant
The GV7700 is a serial digital video transmitter for High
Definition component video. With integrated cable driving
technology, the GV7700 is capable of transmitting HD video
at a compressed 270Mb/s or an uncompressed1.485Gb/s
over 75Ω coaxial cable, or differentially over 100Ω twisted
pair cable.
The GV7700 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.
www.semtech.com
Rev.2
July 2015
HD at 270Mb/s
RS422
Š 1080p 25/29.97/30fps
GV7700
Product Brief
GENDOC-057176
GV7700
Transmitter
1 of 3
Semtech
At 270Mb/s, the effect of cable loss is greatly reduced,
resulting in much longer cable transmission. For 75Ω
coaxial cable, HD-VLC allows a 1.485Gb/s HD signal to be
transmitted up to 3x the normal reach. In typical video over
coaxial installations, when paired with Semtech’s GV7704
HD-VLC receiver, cable distances of up to 550m are
possible.
The GV7700 features an audio embedding core, which
supports up to 4 channels of I2S serial digital audio within
the ancillary data space of the video data stream. The audio
embedding core supports 32kHz, 44.1kHz and 48kHz
sample rates.
The GV7700 supports the insertion of ancillary data into the
horizontal blanking of the video data stream. User data can
be programmed via the GSPI, allowing downstream
communication from the video source to sink device. The
ancillary data packing format is compliant with HDcctv 2.0
communications protocol.
The GV7700 can also be configured to transmit HD video
over UTP cable, such as Cat-5e and Cat-6 cable, when
HD-VLC encoded at 270Mb/s.
The device supports both 8-bit and 10-bit per pixel YCbCr
4:2:2 BT.1120 component digital video. A configurable
20-bit or 10-bit wide parallel digital video input bus is
provided, with associated pixel clock and timing signal
inputs. The GV7700 supports direct interfacing of HD video
formats conforming to ITU-R BT.709 and BT.1120-6 for
1125-line formats, and SMPTE ST 296 for 750-line formats.
Packaged in a space-saving 84-pin dual-row QFN, the
GV7700 is ideal for single PCB security cameras, where
high-density component placement is required. Typically
requiring only 180mW of power, the device does not
require any special heat sinking or air flow, reducing the
over-cost of HD security camera designs.
1Frame structure with encoded HD only. Does not support
SD/D1 video.
Functional Block Diagram
DIV_1001
AUDIO_EN
DETECT_TRS
HDVLC_EN
JTAG
BIT20_BIT10
RESET
TCK
TDO
TDI
TMS
TRST
SDOUT
CS
SCLK
SDIN
GSPI
Programming
Digital Control
SDO_50_EN
PCLK
DIN_[19:0]
20
HIN
Formatter
HD-VLC
Encoder
VIN
Audio/
Ancilliary
Insertion
SDO
SDO
P2S
Output
Formatter
Tx Clock
PCLK
FIN
PLL
Digital Clocks
Test Pattern Generator
XO
XTAL54_SEL
XTAL_EN
XTAL
XTAL
XTAL_OUT
RBIAS
AIN_3_4
AIN_1_2
ACLK
WCLK
GV7700 Functional Block Diagram
GV7700
Product Brief
GENDOC-057176
www.semtech.com
Rev.2
July 2015
2 of 3
Semtech
IMPORTANT NOTICE
Information relating to this product and the application or design described herein is believed to be reliable, however such information is
provided as a guide only and Semtech assumes no liability for any errors in this document, or for the application or design described herein.
Semtech reserves the right to make changes to the product or this document at any time without notice. Buyers should obtain the latest relevant
information before placing orders and should verify that such information is current and complete. Semtech warrants performance of its
products to the specifications applicable at the time of sale, and all sales are made in accordance with Semtech’s standard terms and conditions
of sale.
SEMTECH PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT APPLICATIONS,
DEVICES OR SYSTEMS, OR IN NUCLEAR APPLICATIONS IN WHICH THE FAILURE COULD BE REASONABLY EXPECTED TO RESULT IN PERSONAL
INJURY, LOSS OF LIFE OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. INCLUSION OF SEMTECH PRODUCTS IN SUCH APPLICATIONS IS
UNDERSTOOD TO BE UNDERTAKEN SOLELY AT THE CUSTOMER’S OWN RISK. Should a customer purchase or use Semtech products for any such
unauthorized application, the customer shall indemnify and hold Semtech and its officers, employees, subsidiaries, affiliates, and distributors
harmless against all claims, costs damages and attorney fees which could arise.
The Semtech name and logo are registered trademarks of the Semtech Corporation. All other trademarks and trade names mentioned may be
marks and names of Semtech or their respective companies. Semtech reserves the right to make changes to, or discontinue any products
described in this document without further notice. Semtech makes no warranty, representation or guarantee, express or implied, regarding the
suitability of its products for any particular purpose. All rights reserved.
© Semtech 2015
Contact Information
Semtech Corporation
200 Flynn Road, Camarillo, CA 93012
Phone: (805) 498-2111, Fax: (805) 498-3804
www.semtech.com
GV7700
Product Brief
GENDOC-057176
Rev.2
July 2015
3 of 3
Semtech