GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3
Tel. +1 (905) 632-2996 Fax. +1 (905) 632-5946 E-mail: info@gennum.com
www.gennum.com
Revision Date: August 1999
Document No. 521 - 41 - 03
DATA SHEET
G
FEATURES
operation beyond 622Mb/s
accepts SMPTE and PECL input levels
fully differential signal path
on-chip PECL current loads eliminate need for
external pull-down resistors
capable of driving 100
differential loads
very low 500mW power consumption
additional expansion port input for construction of
larger matrices
auxiliary monitoring output
easy to configure
double latched address inputs with separate load and
configure
TTL/CMOS compatible control logic inputs
single 5V power supply
APPLICATIONS
Serial digital video switching; datacom or telecom
switching.
DESCRIPTION
The GX9533 is a high speed 8x9 serial digital crosspoint.
An expansion input port eases the design of larger
switching matrices by reducing PCB layers and eliminating
the need for cascaded secondary switching. Decode logic
and double level latching to configure the matrix are
included on chip. Separate LOAD and CONFIGURE inputs
allow for asynchronous configuration and synchronous
switching. These latches can also be made transparent for
asynchronous switching by pulling the LOAD and
CONFIGURE pins high.
In the power saving (PS) mode, the GX9533 has a very low
power consumption of 500mW. This is accomplished by
driving a 400mV output swing into the on-chip 200
differential load termination in the expansion port of the next
GX9533. This architecture provides a significant power
savings and the elimination of external load resistors or
impedance matching resistors. In applications where
standard PECL levels are necessary, the GX9533 can be
configured in "PECL Mode", to drive 800mV p-p into a 100
differential load. The power consumption in this mode
increases to 860mW.
BLOCK DIAGRAM
ORDERING INFORMATION
PART NUMBER
PACKAGE
TEMPERATURE
GX9533-CQY
100 pin MQFP Tray
0°C to 70°C
GX9533-CTY
100 pin MQFP Tape
0°C to 70°C
IN0 .. 7
EXP0..7
AUX IN
OA0..2
IA0..3
V
CC
AUX
V
EE
V
CCO
STD/PECL1
STD/PECL2
CONFIG
LOAD A
LOAD
CONFIG
LATCH
LOAD
LATCH
16
16
16
16
3
4
2
2
2
OUT 0..7
DECODE
LOGIC
SWITCHING
MATRIX
INPUT
BUFFER
OUTPUT
BUFFER
GENLINX
II
GX9533
Serial Digital 8x9 Crosspoint