BENEFITS:

VSC1237

Full or Half-rate Clock output for use with Clocked Laser Drivers or in RZ

Signal Generation

Built in Jitter Filter PLL

Extremely Low Clock-data Skew

Clock Outputs can be Disabled to Save Power

Flexible Parallel Data Clocking Using Internal PLL

No External Heatsink Required

VSC1238

High Sensitivity Eliminates Need for AGC/Post-amplifier

Adaptive Threshold Control Features to Optimize BER

Proven Performance with Degraded/Difficult Signals Such as:

- Poor OSNR

- Chromatic Dispersion

- Differential Group Delay

- RZ Signaling

SPECIFICA TIONS:

VSC1237

1.2W Typical Power Dissipation

560mVpp Typical Data Output Amplitude

25ps Typical Rise/Fall Time

600mVpp Typical Clock Amplitude

<-10dB Output Return Loss

<0.1UIpp Jitter Generation

5ps Typical Clock-data Skew Variation

VSC1238

1.7W Typical Power Dissipation

8mVpp Single-ended Sensitivity

3mV Maximum Uncorrected Input Referred Offset

Multi-frequency Capable with Selectable CDR VCOs

Auto-sensing /16, /64 or /512 Reference Frequency

Common Specifications

LVDS Compatible Low-speed I/O

-5 to +90

°C Case Temperature Range

APPLICA TIONS:

SONET OC-192, SDH STM-64 Systems

10GbE, G.975, G.709 and Proprietary FEC Systems

Long Haul / Ultra Long Haul Transmission Systems

Line Cards

Transponders

FEA TURES:

VSC1237

16:1 Data Multiplexer

PLL Based Clock Multiplier

Integrated Jitter Filter PLL

Full-rate/Half-rate Clock Outputs

Flexible PLL Based Parallel Data Clocking

Selectable Bit-order and Phase Reversal

Selectable Low Phase Noise VCOs

Surpasses SONET/SDH Jitter Generation/Transfer Requirements

VSC1238

1:16 Data Demultiplexer

PLL Based Clock Recovery

Highly Sensitive Front-end: 8mVpp Single-ended

Powerful Adaptive Threshold Control Features

Surpasses SONET/SDH Jitter Tolerance Requirements

Reference Multiplier PLL

True Loss of Signal Function

Direct Recovery of NRZ and RZ Signals

Common Features

Low Power SiGe Technology

No External Heatsink Required

Single 3.3V Power Supply

9.9 to 12.5 Gbps 16:1 Multiplexer with Clock Multiplier Unit and Demultiplexer

with Clock Recovery Chip Set

TRANSPORT PRODUCTS

PB-VSC1237,38-001

VSC1237, VSC1238