Overview

The LA2232 and LA2232M are RDS demodulator ICs

that provide both a 57 kHz bandpass filter as well as ARI-

SK and DK signal recognition functions on chip. Cost-

effective RDS decoder systems can be constructed by

using an LA2232 or 2232M in conjunction with a

synchronization and error detection/correction LSI from

the LC7070 series. The LA2232 and 2232M provide

improved sensitivity LA2230 and 2230M.

Applications

• RDS signal demodulation

• ARI signal demodulation and SK and DK recognition

Functions

• 57 kHz bandpass filter

• RDS signal demodulation

• Bit rate clock regeneration

• RDS identification output

• ARI signal demodulation

• SK identification output

• DK identification output

• Adjustable ARI detection sensitivity

Features

• High RDS demodulation sensitivity

• Reduced costs and PCB area due to the inclusion of an

on-chip 57 kHz bandpass filter

• Supports improved interference rejection characteristics

by providing ARI detection sensitivity adjustment

• Quick operation startup due to a built-in rapid charging

circuit for use at power application.

Package Dimensions

unit: mm

3067-DIP24S

unit: mm

3112-MFP24S

Ordering number : EN4416A

21097HA(OT) No. 4416-1/9

SANYO: DIP24S

[LA2232]

SANYO: MFP24S

[LA2232M]

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

RDS Decorder

LA2232, 2232M

Monolithic Linear IC