TM
GENLINX GS9022
Digital Video Serializer
DATA SHEET
FEATURES
DEVICE DESCRIPTION
• built-in 75 Ωcable driver with two serial outputs
• standard independent operation
• space saving 28 pin PLCC package
TheGS9022isamonolithicbipolarintegratedcircuitdesigned
to serialize SMPTE 125M and SMPTE 244M bit parallel digital
signals as well as other 8 or 10 bit parallel formats. This device
performs the functions of sync detection, parallel to serial
conversion, data scrambling (using the X9 + X4 +1 algorithm),
10x parallel clock multiplication and conversion of NRZ to
NRZIserialdata. Thedatarateisautomaticallyset forSMPTE
259M data rates to 400 Mb/s. Other features include a lock
detect output and an internal cable driver capable of driving
two 75Ω loads.
• 650 mW typical power dissipation (data output
driving 75 Ω load).
• supports bit rates to 400 Mb/s
• accepts 8 bit and 10 bit TTL and CMOS
compatible parallel data inputs
The device requires a single +5 volt or -5 volt supply and
typically consumes 650 mW of power while driving two 75 Ω
loads. The 28 pin PLCC packaging assures a small footprint
for the complete encoder function.
• fully compatible with SMPTE 259M serial digital
standard
• single +5 or -5 volt supply
APPLICATIONS
ORDERING INFORMATION
• 4ƒSC, 4:2:2 and 360 Mb/s serial digital interfaces for:
Part Number
Package
Temperature
Video cameras
VTRs
GS9022-CPJ
GS9022-CTJ
28 pin PLCC
28 pin PLCC Tape
O°C to 70°C
O°C to 70°C
Signal generators
Portable equipment
SYNC
DETECT
DISABLE
25
22
SERIAL DATA
RISE TIME
CONTROL
PARALLEL
DATA
IN (10 BITS)
SYNC
DETECT
3-12
23
SERIAL DATA
INPUT
LATCH
P/S
CONVERTER
SCRAMBLER
NRZ
NRZI
SCLK
PLD
MUX
PHASE
13
17
CHARGE
PUMP
PCLK
FREQUENCY
DETECT
V
CO
LOOP
FILTER
DIV BY 2
GENERATOR
OSCILLATOR
DIV BY 10
GENERATOR
LOCK
DETECT
GS9022
19
26
28
REGULATOR CAP
14
LOCK
R
C
VCO
OSC
DETECT
FUNCTIONAL BLOCK DIAGRAM
Revision Date: August 1997
Document No. 521 - 42 - 01
GENNUM CORPORATION P.O. Box 489, Stn A, Burlington, Ontario, Canada L7R 3Y3 tel. (905) 632-2996 fax: (905) 632-5946
Gennum Japan Corporation: A-302 Miyamae Village, 2-10-42 Miyamae, Suginami-ku, Tokyo 168, Japan tel. (03) 3334-7700 fax (03) 3247-8839