CLC020

SMPTE 259M Digital Video Serializer with Integrated

Cable Driver

General Description

The CLC020 SMPTE 259M Digital Video Serializer with

Integrated Cable Driver is a monolithic integrated circuit that

encodes, serializes and transmits bit-parallel digital data

conforming to SMPTE 125M and SMPTE 267M component

video and SMPTE 244M composite video standards. The

CLC020 can also serialize other 8 or 10-bit parallel data. The

CLC020 operates at data rates from below 100 Mbps to over

400 Mbps. The serial data clock frequency is internally gen-

erated and requires no external frequency setting compo-

CLC020 include: parallel-to-serial data conversion, data en-

coding using the polynomial (X

sion from NRZ to NRZI, parallel data clock frequency multi-

plication and encoding with the serial data, and coaxial cable

driving. Input for sync (TRS) detection disabling and a PLL

lock detect output are provided. The CLC020 has an exclu-

sive built-in self-test (BIST) and video test pattern generator

(TPG) with 4 component video test patterns, reference

black, PLL and EQ pathologicals and modified colour bars, in

Separate power pins for the output driver, VCO and the

digital logic improve power supply rejection, output jitter and

noise performance.

The CLC020 is the ideal complement to the CLC011B

SMPTE 259M Serial Digital Video Decoder, CLC014 Active

Cable Equalizer, CLC016 Data Retiming PLL (clock-data

separator), CLC018 8X8 Digital Crosspoint Switch and

CLC006 or CLC007 Cable Drivers, for a complete parallel-

serial-parallel, high-speed data processing and transmission

system.

The CLC020 is powered from a single 5V supply. Power

dissipation is typically 235 mW including two 75

Ω back-

matched output loads. The device is packaged in a JEDEC

28-lead PLCC.

Features

n

SMPTE 259M serial digital video standard compliant

n

No external serial data rate setting or VCO filtering

n

Built-in self-test (BIST) and video test pattern generator

n

Supports all NTSC and PAL standard component and

composite serial video data rates

n

HCMOS/TTL-compatible data and control inputs and

outputs

n

75

Ω ECL-compatible, differential, serial cable-driver

outputs

n

n

Single +5V TTL or −5V ECL supply operation

n

Low power: 235 mW typical

n

28-lead PLCC package

n

Commercial temperature range 0˚C to +70˚C

Applications

n

SMPTE 259M parallel-to-serial digital video interfaces

for:

— Video cameras

— VTRs

— Telecines

— Video test pattern generators and digital video test

equipment

n

Non-SMPTE video applications

n

Other high data rate parallel/serial video and data

systems

Typical Application

10091712

July 2003

© 2003 National Semiconductor Corporation

DS100917

www.national.com