72720YV Datasheet | SANYO

Overview The LC72720Y and LC72720YV 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 mittee) 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. 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 timing. - Data can be read out starting with the backwardprotection block data after a synchronization reset. - Fully adjustment free. - Low voltage (supply voltage: 3.0 V min) type. - Operating power-supply voltage: 3.0 to 3.6 V - Operating temperature: - 40 to +85°C - Package: DIP24S, SSOP30 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) - 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. Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or...