CLC018AJVJQ ,8 x 8 Digital Crosspoint Switch, 1.485 GbpsElectrical Characteristics(V = 0V, V = −5V, V = 0V; unless otherwise specified) (Note 4).CC EE LLMi ..
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CLC018AJVJQ
8 x 8 Digital Crosspoint Switch, 1.485 Gbps
CLC018 x 8 Digital Crosspoint Switch, 1.485 Gbps
General DescriptionNational’s Comlinear CLC018isa fully differential 8x8 digital
crosspoint switch capableof operatingat data rates exceed-
ing 1.485 Gbps per channel.Its non-blocking architecture
utilizes eight independent 8:1 multiplexersto allow each
outputtobe independently connectedto any input and any
inputtobe connectedto anyorall outputs. Additionally, each
output can be individually disabled and settoa high-
impedance state. This TRI-STATE feature allows flexible
expansionto larger switch array sizes.
Low channel-to-channel crosstalk allowsthe CLC018to pro-
vide superior all-hostile jitterof50 psPP. This excellent signal
fidelity along with low power consumptionof 850 mW make
the CLC018 idealfor digital video switching plusa varietyof
data communication and telecommunication applications.
The fully differential signal path provides excellent noise
immunity, and the I/Os support ECL and PECL logic levels. addition, the inputs maybe driven single-endedor differ-
entially and accepta wide rangeof common mode levels
includingthe positive supply. Single +5Vor −5V suppliesor
dual +5V supplies are supported. Dual supply mode allows
the control signalstobe referencedto the positive supply
(+5V) while the high-speedI/O remains ECL compatible.
The double row latch architecture utilizedin the CLC018
allows switch reprogrammingto occurin the background
during operation. Activationofthe new configuration occurs
witha single “configure” pulse. Data integrity and jitter per-
formanceon unchanged outputs are maintained duringre-
configuration. Two reset modes are provided. Broadcast
reset resultsinall outputs being connectedto input port DI0.
TRI-STATE Reset resultsinall outputs being disabled.
The CLC018is fabricatedona high-performance BiCMOS
process andis availableina 64-lead plastic quadflat pack
(PQFP).
Features Fully differential signal path Non-Blocking Flexible expansionto larger array sizes with very low
power Single +5/−5Vor dual ±5V operation TRI-STATE outputs Double row latch architecture 64-lead PQFP package
Applications Serial digital video routing:
SMPTE 259Mfor SD rates
SMPTE 292Mfor HD rates Telecom/datacom switching ATM SONET
Key Specifications High speed: >1.485 Gbps Low jitter:
<50 psPPfor rates <500 Mbps<100psPPfor rates <1.485 Gbps Low power; 850 mW withall outputs active Fast output edge speeds: 250ps
CLC018 Block DiagramDS100088-2
DS100088-1
July 2001
CLC01
88x8
Digital
Crosspoint
Switch,
Gbps
