GS2972IBE3 Datasheet, PDF (3/4 Pages) Gennum Corporation – GS2972 3Gb/s, HD, SD SDI Transmitter

The GS2972 includes an integrated Cable Driver fully
compliant with SMPTE 259M-C, SMPTE 292M and SMPTE
424M. It features automatic dual slew-rate selection,
depending on 3Gb/s, HD, or SD operational requirements.
Up to eight channels, in two groups, of serial digital audio
may be embedded into the video data stream, in accordance
with SMPTE 272M and SMPTE 299M. 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 or 3Gb/s modes.
Additional audio processing features include individual
channel enable, group selection, group replacement,
channel swapping and audio channel status insertion.
Functional Block Diagram
ANC_BLANK
F/DE
V/VSYNC
H/HSYNC
TIM-861
20BIT/10BIT
DIN[19:0]
PCLK
Input
Mux/
Demux
JTAG
Controller
GSPI
Host
Interface
SMPTE 425M
Level B Level A
1080p 50/60 4:2:2 10-bit
HANC/
VANC
Blanking
SMPTE 352M
Generation
and Insertion
ANC Data
Insertion
TRS, Line
Number
and CRC
Insertion
EDH
Packet
Insertion
NRZ/NRZI
SMPTE
Scrambler
Mux
Parallel to Serial
Converter
SMPTE
Cable
Driver
AVDD
AGND
PLL_VDD
PLL_GND
VCO_VDD
VCO_GND
CD_VDD
CD_GND
RSET
SDO
SDO
SDO_EN/DIS
DVB-ASI
8b/10b
Encoder
PLL with Low Noise
VCO
ClockCleaner^TM
LOCKED
GS2972 Functional Block Diagram
GS2972 3Gb/s, HD, SD SDI Transmitter
Product Brief
44723 - E
June 2008
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