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GENNUM - HD/SD-SDI Serializer

Numéro de référence GS1662
Description HD/SD-SDI Serializer
Fabricant GENNUM 
Logo GENNUM 





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GS1662 fiche technique
GS1662 HD/SD-SDI Serializer with Complete SMPTE Video Support
Key Features
• Operation at 1.485Gb/s, 1.485/1.001Gb/s and 270Mb/s
• Supports SMPTE 292, SMPTE 259M-C and DVB-ASI
• Integrated Cable Driver
• Integrated, low-noise VCO
• Integrated ClockCleaner™
• Ancillary data insertion
• Parallel data bus selectable as either 20-bit or 10-bit
• SMPTE video processing including TRS calculation and
insertion, line number calculation and insertion, line
based CRC calculation and insertion, illegal code
re-mapping, SMPTE 352M payload identifier
generation and insertion
• GSPI host interface
• 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
• -20ºC to +85ºC operating temperature range
• Low power operation (typically at 330mW, including
Cable Driver)
• Small 11mm x 11mm 100-ball BGA package
• Pb-free and RoHS compliant
Applications
Application: Single Link (3G-SDI)
to Dual Link (HD-SDI) Converter
3G-SDI
Gennum
EQ
GS2960
10-bit
HV F/PCLK
HV F/PCLK
10-bit
GS1662
GS1662
HD-SDI
Link A
HD-SDI
Link B
Description
The GS1662 is a complete SDI Transmitter, generating a
SMPTE 292, SMPTE 259M-C or DVB-ASI compliant Serial
Digital Output signal.
The integrated ClockCleaner™ allows the device to accept
parallel clocks with greater than 300ps 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 GS1662 performs SMPTE scrambling
and NRZ to NRZI coding. In addition, the device can insert
TRS words, calculate and insert line numbers and line
based CRC's, re-map illegal code words, map 8-bit TRS to
10-bit TRS, calculate and insert EDH CRC's and flags, and
insert SMPTE 352M payload identifier packets. All of the
processing features are optional, and may be disabled via
external control pins and/or via the Host Interface.
The GS1662 provides ancillary data insertion in SMPTE
mode as well. The entire ancillary packet is programmed
into internal registers through the GSPI Host Interface,
including the Ancillary Data Flag (ADF), Data Identification
words (DID and SDID) and checksum. The GS1662 then
recalculates the checksum and inserts the complete
ancillary packet into the video stream.
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, and 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.
Parallel data inputs must be provided in 20-bit or 10-bit
multiplexed format for HD and SD video rates. The
associated Parallel Clock input signal operates at 148.5 or
148.5/1.001MHz (HD 10-bit multiplexed format), 74.25 or
74.25/1.001MHz (for HD 20-bit format), 27MHz (for SD
10-bit format) and 13.5MHz (for SD 20-bit format).
The GS1662 includes an integrated Cable Driver fully
compliant with SMPTE 259M-C and SMPTE 292M. It
features automatic dual slew-rate selection, depending on
HD or SD operational requirements.
GS1662 HD/SD-SDI Serializer with Complete SMPTE
Video Support
Data Sheet
53628 - 3
October 2010
www.gennum.com
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