LM2483

180V Triple Bias Clamp

General Description

The LM2483 driver is an Integrated 180V triple bias clamp

circuit for DC recovery of each of the AC coupled outputs of

a HDTV CRT driver. It is well matched with the DAC outputs

of the LM126X family of pre-amplifiers. Each amplifier has its

gain internally set to -30. The LM2483 is packaged in an

industry standard 14 lead molded plastic dual-in-line pack-

age.

Features

n

Wide range integrated triple bias clamp

n

High input impedance

n

Matched to LM2426 HDTV Driver

Applications

n

AC coupled HDTV applications using the 1080i and

720p formats as well as standard NTSC and PAL

formats.

Schematic and Connection Diagrams

20052933

Top View

Order Number LM2483NA

20052932

FIGURE 1. Simplified Schematic Diagram (One

Channel)

November 2002

© 2002 National Semiconductor Corporation

DS200529

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