GENLINX™ II
GX9533 Serial Digital 8x9 Crosspoint
Features
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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 100Ω 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
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 200Ω
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 800mVp-p into a
100Ω differential load. The power consumption in this
mode increases to 860mW.
Applications
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Serial digital video switching
Datacom or telecom switching
STD/PECL2
STD/PECL1
AUX IN
EXP0..7
16
IN0 .. 7
2
16
INPUT
BUFFER
SWITCHING
MATRIX
2
16
OUTPUT
BUFFER
V
CCO
16
2
OUT 0..7
AUX
CONFIG
CONFIG
LATCH
LOAD
LOAD A
3
OA0..2
IA0..3
4
LOAD
LATCH
V
EE
DECODE
LOGIC
V
CC
Figure A: GX9533 Functional Block Diagram
GENLINX™ II
GX9533 Serial Digital 8x9 Crosspoint
Data Sheet
8494 - 4
November 2009
1 of 15
Proprietary & Confidential
GENNUM [ GENNUM CORPORATION ]
