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Semtech

GS1671A Datasheet Preview

GS1671A Datasheet

HD/SD SDI Receiver

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GS1671A
HD/SD SDI Receiver, with Integrated Adaptive Cable Equalizer complete with
SMPTE Audio and Video Processing
Key Features
• Operation at 1.485Gb/s, 1.485/1.001Gb/s and 270Mb/s
• Supports SMPTE 292M, SMPTE 259M-C and DVB-ASI
• Integrated adaptive cable equalizer
• Typical equalized length of Belden 1694A cable:
Š 230m at 1.485Gb/s
Š 440m at 270Mb/s
• Integrated Reclocker with low phase noise, integrated
VCO
• Serial digital reclocked, or non-reclocked output
• Integrated audio de-embedder for 8 channels of 48kHz
audio
• Integrated audio clock generator
• Ancillary data extraction
• Parallel data bus selectable as either 20-bit or 10-bit
• Comprehensive error detection and correction
features
• Output H, V, F or CEA 861 Timing Signals
• 1.2V digital core power supply, 1.2V and 3.3V analog
power supplies, and selectable 1.8V or 3.3V I/O power
supply
• GSPI Host Interface
• Wide temperature range of -40ºC to +85ºC
• Low power operation (typically 480mW)
• Small 11mm x 11mm 100-ball BGA package
• Pb-free and RoHS compliant
Applications
Application: 1080p30 or 720p60 Monitor
HD-SDI
AES - OUT
GS1671A
AUDIO 1/2
AUDIO 3/4
AUDIO 5/6
AUDIO 7/8
Audio Clocks
Audio
Selector
10-bit
HV F/PCLK
Video
Processor
C TR L/TIMECODE
DAC
Speakers
DAC
Display
Application: Multi-format Downconverter
10-bit SD Bypass
Memory
SD/HD-SDI
GS1671A
10-bit
HV F/PCLK
Video
Downconverter &
Aspect Ratio
Conversion
Analog
Sync
Sync
Seperator
AE S 1/2
AE S 3/4
AE S 5/6
AE S 7/8
Audio
Processing
& Delay
GS4901
Audio Clocks
HV F/PCLK
AE S 1/2
AE S 3/4
AE S 5/6
AE S 7/8
10-bit
HD/SD
Serializer
(GS1672)
HD/SD-SDI
Application: Multi-input Video Monitoring System
HD-SDI
Input 1
HD-SDI
Input 2
GS1671A
10-bit
HV F/PCLK
GS1671A
10-bit
HV F/PCLK
Video
Memory
Video
Formatter
H V/DE/PCLK
DVI/
VGA DAC
Video
Output
HD-SDI
Input n
GS1671A
10-bit
HV F/PCLK
Analog
Sync
Sync
Seperator
AES BUS
GS4911
Audio
Select
HV F/PCLK
Audio Clocks
On Screen
Display
Generator
Audio
Processor
AE S OUT 1/2
AE S OUT 3/4
AE S OUT 5/6
AE S OUT 7/8
GS1671A HD/SD SDI Receiver
Data Sheet
54389 - 1
September 2012
www.semtech.com
1 of 136




Semtech

GS1671A Datasheet Preview

GS1671A Datasheet

HD/SD SDI Receiver

No Preview Available !

Application: Multi-format Audio De-embedder Module
SD/HD-SDI
10-bit
P CLK
GS1662
SD/HD-SDI
GS1671A
AUDIO 1/ 2
AUDIO 3/ 4
AUDIO 5/ 6
AUDIO 7/ 8
Audio Clocks
Switch
Logic
&
Drivers
DAC
AES
Audio
Outputs
Analog
Audio
Outputs
Application: Multi-format Digital VTR/Video Server
V ideo Output
SD/HD-SDI
GS1671A
10-bit
HV F /P CLK
AUDIO 1/ 2
AUDIO 3/ 4
AUDIO 5/ 6
AUDIO 7/ 8
Audio Clocks
Video
Processor
Audio
Processor
Storage :
Tape/HDD/Solid State
Audio Outputs
Description
The GS1671A is a multi-rate SDI integrated Receiver which
includes complete SMPTE processing, as per SMPTE 292M
and SMPTE 259M-C. The SMPTE processing features can be
bypassed to support signals with other coding schemes.
The GS1671A integrates Gennum's adaptive cable equalizer
technology, achieving unprecedented cable lengths and
jitter tolerance. It features DC restoration to compensate for
the DC content of SMPTE pathological signals.
The device features an Integrated Reclocker with an
internal VCO and a wide Input Jitter Tolerance (IJT) of 0.7UI.
A serial digital loop-through output is provided, which can
be configured to output either reclocked or non-reclocked
serial digital data. The serial digital output can be connected
to an external cable driver.
The device operates in one of four basic modes: SMPTE
mode, DVB-ASI mode, Data-Through mode or Standby
mode.
In SMPTE mode (the default operating mode), the GS1671A
performs full SMPTE processing, and features a number of
data integrity checks and measurement capabilities.
The device also supports ancillary data extraction, and can
provide entire ancillary data packets through
host-accessible registers. It also provides a variety of other
packet detection and error handling features. All of these
processing features are optional, and may be individually
enabled or disabled through register programming.
In DVB-ASI mode, sync word detection, alignment and
8b/10b decoding is applied to the received data stream.
In Data-Through mode all forms of SMPTE and DVB-ASI
processing are disabled, and the device can be used as a
simple serial to parallel converter.
The device can also operate in a lower power Standby
mode. In this mode, no signal processing is carried out and
the parallel output is held static.
Parallel data outputs are provided in 20-bit or 10-bit format
for HD and SD video rates, with a variety of mapping
options. As such, this parallel bus can interface directly with
video processor ICs, and output data can be multiplexed
onto 10 bits for a low pin count interface.
Up to eight channels (two audio groups) of serial digital
audio may be extracted from the video data stream, in
accordance with SMPTE 272M-C and SMPTE 299M.
The output audio formats supported by the device include
AES/EBU and I2S, and two other industry standard serial
digital formats. A variety of audio processing features are
provided to ease implementation. Audio clocks are
internally generated and provided by the device.
GS1671A HD/SD SDI Receiver
Data Sheet
54389 - 1
September 2012
2 of 136


Part Number GS1671A
Description HD/SD SDI Receiver
Maker Semtech
Total Page 30 Pages
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