GS7000 Datasheet, PDF (1/14 Pages) List of Unclassifed Manufacturers – Serial Digital Video Transceiver

PRO-LINX ^™ GS7000
Serial Digital Video Transceiver
FEATURES
• fully integrated 270Mb/s SDI receiver or transmitter
• fully compliant with SMPTE 259M-C
• lock and carrier detect output indication
• performance from 0 - 85°C
RECEIVER FUNCTION
• accepts SMPTE 259M-C 270Mb/s serial digital video
and outputs SMPTE 125M compliant 27Mb/s parallel
digital video and clock
• integrated cable equalization (beyond 100m Belden
8281)
• ease of design use and adjustment free operation
• H timing signal output
TRANSMITTER FUNCTION
• accepts SMPTE 125M (27Mb/s) parallel video data and
clock, outputs SMPTE 259M-C 270Mb/s serial digital
video
• integrated cable driver provides one differential output
(or two single-ended outputs)
APPLICATIONS
Space limited, low power 270Mb/s serial to parallel or
parallel to serial interfaces; Alternate, broadcast quality
uncompressed video interface for industrial and
professional video equipment using the IEEE P1394
interface.
DESCRIPTION
PRELIMINARY DATA SHEET
The GS7000 is a dual function IC capable of operating as
either a 270Mb/s Serial Digital Video receiver or a 270Mb/s
Serial Digital Video transmitter. The GS7000 is designed so
that it can be programmed to operate in either receive or
transmit mode via a mode select pin.
When operating as a receiver, the serial data input accepts
SMPTE 259M-C compliant signals. Line terminations are on
the device. An on-chip by-passable fixed gain equalizer
provides cable equalization beyond 100m of high quality
co-axial cable. The clock recovery is performed on chip
with minimal external components. Incoming Serial Digital
Video data is decoded using a NRZI decoder and SMPTE
descrambler to provide clocked SMPTE 125M compliant
parallel output. The SMPTE descrambler and NRZI
decoding functions can be disabled.
When operating as a transmitter, the GS7000 accepts
parallel SMPTE 125M compliant ten bit video. An on-chip
scrambler and NRZI encoder converts the parallel data into
a bit serial SMPTE 259M-C compliant NRZI output signal
suitable for driving co-axial cable. Through the SMPTE
select pin, the SMPTE scrambler and NRZI coding functions
can be disabled.
ORDERING INFORMATION
PART NUMBER
PACKAGE
GS7000-CQT
52 pin MQFP
GS7000-CTT
52 pin MQFP Tape
TEMPERATURE
0°C to 85°C
0°C to 85°C
SMPTE
C₁ C₂
D_{IN (0,9)}
10
P to S
PCLK_OUT
H
SCRAMBLER
NRZI
ENCODER
f/10
PLL
MUX
SIGNAL
LOCK
DETECT
SDO
SDO
LOCK
CD
PCLK_IN
D_OUT(0,9)
S to P
TRS
DETECTOR
10
NRZI
SDI
DESCRAMBLER
DECODER
SLICER
EQUALIZER
SDI
SMPTE
Rx/Tx
EQ
BLOCK DIAGRAM
Revision Date: August 1999
Document No. 522 - 06 - 02
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3
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