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GS9090 Datasheet دیتاشیت PDF دانلود

دیتاشیت - Gennum Corporation - GenLINX-R III 270Mb/s Deserializer

شماره قطعه GS9090
شرح مفصل GenLINX-R III 270Mb/s Deserializer
تولید کننده Gennum Corporation 
آرم Gennum Corporation 


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GS9090 شرح
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GS9090 GenLINX® III 270Mb/s
Deserializer for SDI and DVB-ASI
GS9090 Data Sheet
Key Features
• SMPTE 259M-C compliant descrambling and NRZI
to NRZ decoding (with bypass)
• DVB-ASI sync word detection and 8b/10b decoding
• Integrated line-based FIFO for data
alignment/delay, clock phase interchange, DVB-ASI
data packet extraction and clock rate interchange,
and ancillary data packet extraction
• Integrated VCO and reclocker
• Automatic or manual selection between SMPTE
video and DVB-ASI data
• Single serial digital input buffer with wide input
sensitivity
• User selectable additional processing features
including:
• TRS, ANC data checksum, and EDH CRC error
detection and correction
• programmable ANC data detection
• illegal code remapping
• Internal flywheel for noise immune H, V, F
extraction
• Automatic standards detection and indication
• Enhanced Gennum Serial Peripheral Interface
(GSPI)
• JTAG test interface
• Polarity insensitive for DVB-ASI and SMPTE
signals
• +1.8V core power supply with optional +1.8V or
+3.3V I/O power supply
• Small footprint (8mm x 8mm)
• Low power operation (typically 145mW)
• Pb-free and RoHS compliant
Applications
• SMPTE 259M-C Serial Digital Interfaces
• DVB-ASI Serial Digital Interfaces
Description
The GS9090 is a 270Mb/s reclocking deserializer with
an internal FIFO. When used in conjunction with one of
Gennum’s SDI Cable Equalizers, a receive solution for
SD-SDI and DVB-ASI applications can be realized.
In addition to reclocking and deserializing the input data
stream, the GS9090 performs NRZI-to-NRZ decoding,
descrambling as per SMPTE 259M-C, and word
alignment when operating in SMPTE mode. When
operating in DVB-ASI mode, the device will word align
the data to K28.5 sync characters and 8b/10b decode
the received stream.
The integrated reclocker features a very wide Input
Jitter Tolerance, and is fully compatible with both
SMPTE and DVB-ASI input streams.
The GS9090 includes a range of data processing
functions such as error detection and correction,
automatic standards detection, and EDH support. The
device can also detect and extract SMPTE 352M
payload identifier packets and independently identify
the received video standard. This information is read
from internal registers via the host interface port.
TRS errors, EDH CRC errors, and ancillary data
checksum errors can all be detected and corrected. A
single DATA_ERROR pin is provided which is an
inverted logical 'OR'ing of all detectable errors.
Individual error status is stored in internal
‘ERROR_STATUS’ registers.
The GS9090 also incorporates a video line-based FIFO.
This FIFO may be used in four user-selectable modes
to carry out tasks such as data alignment / delay, clock
phase interchange, MPEG packet extraction and clock
rate interchange, and ancillary data packet extraction.
Parallel data outputs are provided in 10-bit multiplexed
format, with the associated parallel clock output signal
operating at 27MHz.
The GS9090 is Pb-free, and the encapsulation
compound does not contain halogenated flame
retardant (RoHS compliant).
28201 - 1 July 2005
1 of 70
www.gennum.com

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