TEA5764

General description

The TEA5764HN is a single chip electronically tuned FM stereo radio with Radio Data System (RDS) and Radio Broadcast Data System (RBDS) demodulator and RDS/RBDS decoder for portable application with fully integrated IF selectivity and demodulation. The radio is completely adjustment free and only requires a minimum of small and low cost external components. The radio can tune to the European, US and Japanese FM bands. It has a low power consumption and can operate at a low supply voltage.

Features

■High sensitivity due to integrated low noise RF input amplifier
■FM mixer for conversion of the US/Europe (87.5 MHz to 108 MHz) and Japanese FM band (76 MHz to 90 MHz) to IF
■Preset tuning to receive Japanese TV audio up to 108 MHz
■Auto search tuning, raster 100 kHz
■RF automatic gain control circuit
■LC tuner oscillator operating with low cost fixed chip inductors
■Fully integrated FM IF selectivity
■Fully integrated FM demodulator;
■no external discriminator
■Crystal oscillator at 32768 Hz, or external reference frequency at 32768 Hz
■PLL synthesizer tuning system
■IF counter; 7-bit output via the I2C-bus
■Level detector; 4-bit level information output via the I2C-bus
■Soft mute: signal dependent mute function
■Mono/stereo blend: gradual change from mono to stereo, depending on signal
■Adjustment-free stereo decoder
■Autonomous search tuning function
■Standby mode
■MPX output
■One software programmable port
■Fully integrated RDS/RBDS demodulator in accordance with EN50067
■RDS/RBDS decoder with memory for two RDS data blocks provides block synchronization and error correction; block data and status information are available via the I2C-bus
■Audio pause detector