VSC1237 / Vitesse Semiconductor Corporation

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Part No.	VSC1237
Manufacturer	VITESSE
Size	455 Kbytes
Pages	2 pages
Description	9.9 to 12.5 Gbps 16:1 Multiplexer with Clock Multiplier Unit and Demultiplexer with Clock Recovery Chip Set

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# VSC1237/VSC1238 Chipset

## General Description
· High-performance multiplexer/demultiplexer chipset for 9.9-12.5 Gbps applications
· Suitable for SONET OC-192, SDH STM-64, 10GbE, G.975, G.709, and long/ultra-long haul fiber optic transmission systems.

## VSC1237 (Multiplexer)
Features
· 16:1 Data Multiplexer
· PLL Based Clock Multiplier
· Integrated Jitter Filter PLL
· Full/Half-rate Clock Outputs
· Selectable Bit-order and Phase Reversal
· Selectable Low Phase Noise VCOs
Specifications
· Power Dissipation: 1.2W (Typical)
· Data Output Amplitude: 560mVpp (Typical)
· Rise/Fall Time: 25ps (Typical)
· Clock Amplitude: 600mVpp (Typical)
· Jitter Generation: <0.1UIpp
· Clock-Data Skew Variation: 5ps (Typical)

## VSC1238 (Demultiplexer)
Features
· 1:16 Data Demultiplexer
· PLL Based Clock Recovery
· High Sensitivity Front-end: 8mVpp Single-ended
· Adaptive Threshold Control
· True Loss of Signal Function
· Direct Recovery of NRZ and RZ Signals
Specifications
· Power Dissipation: 1.7W (Typical)
· Sensitivity: 8mVpp Single-ended
· Input Offset: 3mV (Maximum Uncorrected)
· Reference Frequency: Auto-sensing /16, /64, or /512

## Common Specifications
· LVDS Compatible Low-speed I/O
· Case Temperature Range: -5 to +90°C
· Single 3.3V Power Supply
· No External Heatsink Required