RF Amplifier for CD Players

Description

The CXA1821M is an IC developed for compact

disc players. This IC incorporates an APC circuit and

RF, focus error, and tracking error amplifiers for 3-

spot optical pickup output. (The voltage-converted

optical pickup output is supported.)

Features

• Low power consumption (40mW at ±2.5V)

• APC circuit

• Both single power supply (+5V) and dual power

supply (±2.5V) operations possible.

• Compatible with pickup for LC and PD

• Supports the RF amplifier at double speed.

Applications

Compact disc players

Structure

Bipolar silicon monolithic IC

Block Diagram and Pin Configuration

Absolute Maximum Ratings (Ta = 25°C)

• Supply voltage

12

V

• Operating temperature

Topr

–20 to +75

°C

• Storage temperature

Tstg

–65 to +150

°C

• Allowable power dissipation

600

mW

Operating Conditions

• Supply voltage

2.8 to 11.0

V

– 1 –

E94932-TE

Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by

any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the

operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

CXA1821M

20 pin SOP (Plastic)