CLC016MTC

General Description

National's Comlinear CLC016 is a low-cost, monolithic, data retiming phase-locked loop (PLL) designed for high-speed serial clock and data recovery. The CLCo16 simplifies high- speed data recovery in multi-rate systems by incorporating auto-rate select (ARS) circuitry on chip.This function allows the user to configure the CLco16 to recognize up to four different data rates and automatically adjust to provide accurate, low-jitter clock and data recovery. A single resistor is used to set each data rate anywhere between 40 Mbps and 400 Mbps.No potentiometers, crystals, or other external ICs are required to set the rate.

The CLC016 has output jitter of only 13°at a270 Mbps data rate and 0.25%fractional loop bandiath. Low phase detector output offset and low vco injection combine to ensure that the CLCO16 does not generate bit errors or large phase transients in response to extreme fluctuations in data transition density.The result is improved performance when handling the pathological patterns inherent in the SMPTE 259M video industrystandard.

The carrier detect and output mute functions may be used together to automatically latch the outputs when no data is present, preventing random transitions. The external loop filter allows the user to tailor the loop response to the specific application needs. The CLCo16 will operate with either +5v or-5.2V power supplies. The serial data inputs and outputs, as well as the recovered clock outputs,allow single- or differential-ECL interfacing. The logic control inputs are TTL- compatible.

Features

● Retimed data output

●  Recovered clock output

●  Auto and manual rate select modes

● Four user-configurable data rates

● No potentiometers required

●  External loop bandwidth control

●  Frequency detector for lock acquisition

● Carrier detect output

●  Output MUTE function

● Single supply operation: +5v or -5.2V

● Low cost

Key Specifications

● Low jitter: 130PR@270 Mbps,0.25%fractional loop bandwidth (o.673H

● High data rates: 40 Mbps - 400 Mbps

● Low supply current: 100 mA, including output biasing

● Flexible fractional loop bandwidth: from 0.05%to 0.5%

Applications

● SMPTE 259M serial digital interfaces: NTSC/PAL，4:2:2 component,360 Mbps wide screen

● Serial digital video routing and distribution

● Clock and data recovery for high-speed data transmission

● Re-synchronization of serial data for SONET/SDH，ATM, CADnetworks,medical and industrial imaging

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