Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate

the performance, characteristics, and functions of the described products in the independent state, and are not

guarantees of the performance, characteristics, and functions of the described products as mounted in the

customer

device, the customer should always evaluate and test devices mounted in the customer

equipment.

Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to

"standard application", intended for the use as general electronics equipment. The products mentioned herein

shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life,

aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system,

safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives

in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any

guarantee thereof. If you should intend to use our products for new introduction or other application different

from current conditions on the usage of automotive device, communication device, office equipment, industrial

equipment etc. , please consult with us about usage condition (temperature, operation time etc.) prior to the

intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely

responsible for the use.

N1412HK B8-5256 No. A2155-1/18

LC72720YVS

Overview

The LC72720YVS is a single-chip system IC 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) RBDS (Radio

Broadcast Data System) standard. This IC 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 500ms) and flag memory

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

Features

 Error correction capability improved by soft-decision error correction

 The load on the control microprocessor 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.

 Data can be read out starting with the backward-protection block data after a synchronization reset.

 Fully adjustment free

Specifications

 Operating power-supply voltage :

3.0 to 3.6V

 Operating temperature :

-40 to +85

C

 Package :

SSOP30(275mil)

Ordering number : ENA2155

CMOS IC

Single-Chip RDS

Signal-Processing System IC

Semiconductor for this format.