GS2972 Datasheet, PDF (2/125 Pages) Semtech Corporation – 3G/HD/SD-SDI Serializer with Complete SMPTE Audio & Video Support

Application: Multi-format Digital VTR/Video Server
V ideo Inputs
Storage :
Tape/HDD/Solid State
Video
Processor
Audio
Processor
20-bit
HV F /P CLK
AUDIO 1/ 2
AUDIO 3/ 4
AUDIO 5/ 6
AUDIO 7/ 8
Audio Clocks
Audio Inputs
GS4911
X TAL
GS2972
Sync
Seperator
3G-SDI
Analog
Sync
Application: Multi-format Presentation Switcher
(Output Stage)
DVE
P rogram AE S In
P reset AE S In
V oice-Over
AE S from Input Dem ux
Audio
Mixer
P rogram AE S Out
P review AE S Out
I2S Audio + Clocks
10-bit + Clk
GS2972
SD/HD/3G-SDI
Auxiliary
Mixers
KeyK&KeyeFeyriellr
Key/Fill
Inputs
20-bit + Clk
Logo
Inserter 20-bit + Clk
Image
Store
SD/HD/3G-SDI
Preview
GS2972
GS2972
SD/HD/3G-SDI
Program
Analog
Sync
Sync
Seperator
GS4911
Clock &
Sync Distribution
X TAL
Application: 3Gb/s SDI Test Signal Generator
Analog
Sync
Sync
Seperator
X TAL
GS4911
HV F/PCLK
Audio Clocks
Memory
Video
Signal
Generator
20-bit
HV F/PCLK
Audio
Generator
AES 1/2
AES 3/4
AES 5/6
AES 7/8
GS2972
3G-SDI
Description
The GS2972 is a complete SDI Transmitter, generating a
SMPTE ST 424, SMPTE ST 292, SMPTE ST 259-C or DVB-ASI
compliant serial digital output signal.
The integrated Narrow BW PLL allows the device to accept
parallel clocks with high input jitter, and still provide a
SMPTE compliant serial digital output.
The device can operate in four basic user selectable modes:
SMPTE mode, DVB-ASI mode, Data-Through mode, or
Standby mode.
In SMPTE mode, the GS2972 performs all SMPTE processing
features. Both SMPTE ST 425 Level A and Level B formats
are supported with optional conversion from Level A to
Level B for 1080p 50/60 4:2:2 10-bit.
In DVB-ASI mode, the device will perform 8b/10b encoding
prior to transmission.
In Data-Through mode, all SMPTE and DVB-ASI processing
is disabled. The device can be used as a simple parallel to
serial converter.
The device can also operate in a lower power Standby
mode. In this mode, no signal is generated at the output.
The GS2972 integrates a fully SMPTE-compliant Cable
Driver for SMPTE ST 259-C, SMPTE ST 292 and
SMPTE ST 424 interfaces. It features automatic dual
slew-rate selection, depending on 3Gb/s or HD or SD
operational requirements.
In accordance with SMPTE ST 272 and SMPTE ST 299, up to
eight channels (two audio groups) of serial digital audio
may be embedded into the video data stream.The input
audio signal formats supported by the device include
AES/EBU, I²S and serial audio. 16, 20 and 24-bit audio
formats are supported at 48kHz synchronous for SD modes
and 48kHz synchronous or asynchronous in HD, 3Gb/s
modes.
GS2972 3G/HD/SD-SDI Serializer with Complete
SMPTE Audio & Video Support
Final Data Sheet Rev. 9
GENDOC-047479 September 2013
www.semtech.com
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