General Description

This chip performs BTSC stereo and SAP analog TV stereo sound identification and demodulation (no specific I²C programming is required). It offers various audio processing functions such as equalization, loudness, beeper, volume, balance, and surround effects. It provides a cost-effective solution for analog and digital TV designs.

Key Features

■ Fully Automatic Multi-Standard Demodulation

● M/N standards

● FM mono

● BTSC (US MTS) stereo and SAP standards

■ Multi-Channel Capability

● 3 I²S digital inputs, S/PDIF (in/out)

● 5.1 analog outputs

● Dolby® Pro Logic®

● Dolby® Pro Logic II®

● 2 I²S digital outputs (TQFP100 only)

● 2 asynchronous I²S digital inputs (TQFP100 only)

■ Sound Processing

● ST royalty-free processing: ST WideSurround, ST OmniSurround, ST Dynamic Bass, ST Bass Enhancer, SRS® WOW™ , SRS® TruSurround XT™ which is Virtual Dolby® Surround and Virtual Dolby® Digital compliant

● Independent Volume / Balance for Loudspeakers and Headphone

● Loudspeakers: Smart Volume Control (SVC), 5-band equalizer and loudness

● Headphone: Smart Volume Control (SVC), basstreble, loudness, ST Dynamic Bass and SRS® TruBass™

● 3 different bip tones

■ Analog Audio Matrix

● 4 stereo inputs or 5 stereo inputs (TQFP100 only)

● 3 stereo outputs

● Pass-thru mode

■ Audio Delay for Audio Video Synchronization

● Embedded stereo delay up to 120 ms for lip-sync function

● Independent delay on headphone and loudspeaker channels

● External additional audio delay support (TQFP100 only)

Typical Applications

● Analog and digital TV with virtual surround sound

● Analog and digital TV with multi-channel surround sound

● DVD and HDD recorders

● “Palm size” portable TV