LC72720NM View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

Manufacturer

LC72720NM

Single-Chip RDS Signal-Processing System LSI

SANYO -> Panasonic 

Ordering number : EN5877

CMOS IC

LC72720N, 72720NM

Single-Chip RDS

Signal-Processing System LSI

Overview

The LC72720N and LC72720NM are single-chip system

ICs that implement the signal processing required by the

European Broadcasting Union RDS (Radio Data System)

standard and by the US NRSC (National Radio System

Committee) RDBS (Radio Broadcast Data System)

standard. These ICs include band-pass filter, demodulator,

synchronization, and error correction circuits as well as

data buffer RAM on chip and perform effective error

correction using a soft-decision error correction technique.

Functions

• Band-pass filter: Switched capacitor filter (SCF)

• Demodulator: RDS data clock regeneration and

demodulated data reliability information

• Synchronization: Block synchronization detection (with

variable backward and forward protection conditions)

• Error correction: Soft-decision/hard-decision error

correction

• Buffer RAM: Adequate for 24 blocks of data (about 500

ms) and flag memory

• Data I/O: CCB interface (power on reset)

Package Dimensions

unit: mm

3067-DIP24S

[LC72720N]

unit: mm

3045B-MFP24

[LC72720NM]

Features

• Error correction capability improved by soft-decision

error correction

• The load on the microcontroller can be reduced by

storing decoded data in the on-chip data buffer RAM.

• Two synchronization detection circuits provide

continuous and stable detection of the synchronization

timing.

• Data can be read out starting with the backward-

protection block data after a synchronization reset.

• Fully adjustment free

• Operating power-supply voltage: 4.5 to 5.5 V

• Operating temperature: –40 to +85°C

• Packages: DIP24S, MFP24

• CCB is a trademark of SANYO ELECTRIC CO., LTD.

• CCB is SANYO’s original bus format and all the bus

addresses are controlled by SANYO.

SANYO: DIP24S

SANYO: MFP24

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

51398RM (OT) No. 5877-1/14

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