鈩?/div>
load).
鈥?supports bit rates to 400 Mb/s
鈥?accepts 8 bit and 10 bit TTL and CMOS
compatible parallel data inputs
鈥?fully compatible with SMPTE 259M serial digital
standard
鈥?single +5 or -5 volt supply
APPLICATIONS
鈥?4茠
SC
, 4:2:2 and 360 Mb/s serial digital interfaces for:
Video cameras
Signal generators
VTRs
Portable equipment
GS9022-CPJ
GS9022-CTJ
28 pin PLCC
28 pin PLCC Tape
O掳C to 70掳C
O掳C to 70掳C
DEVICE DESCRIPTION
The GS9022 is a monolithic bipolar integrated circuit designed
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 X
9
+ X
4
+1 algorithm),
10x parallel clock multiplication and conversion of NRZ to
NRZI serial data. The data rate is automatically set for SMPTE
259M data rates to 400 Mb/s. Other features include a lock
detect output and an internal cable driver capable of driving
two 75鈩?loads.
The device requires a single +5 volt or -5 volt supply and
typically consumes 650 mW of power while driving two 75
鈩?/div>
loads. The 28 pin PLCC packaging assures a small footprint
for the complete encoder function.
ORDERING INFORMATION
Part Number
Package
Temperature
SYNC
DETECT
DISABLE
25
22
SYNC
DETECT
RISE TIME
CONTROL
SCRAMBLER
NRZ
NRZI
SERIAL DATA
SERIAL DATA
PARALLEL 3-12
DATA
IN (10 BITS)
INPUT
LATCH
23
P/S
CONVERTER
PLD
SCLK
MUX
PCLK
13
PHASE
FREQUENCY
DETECT
CHARGE
PUMP
V
CO
LOOP
FILTER
17
DIV BY 2
GENERATOR
DIV BY 10
GENERATOR
OSCILLATOR
GS9022
LOCK
DETECT
14
LOCK
DETECT
19
R
VCO
28
REGULATOR CAP
26
C
OSC
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
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