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General Description

Overview

The STV82x6 is composed of three main parts:

1. TV Sound Demodulator: provides all the necessary circuitry for the demodulation of audio transmissions of European and Asian terrestrial TV broadcasts. The various transmission standards are automatically detected and demodulated without user intervention.

2. Audio Processor: based on DSP technology, independently controls loudspeaker, subwoofer and headphone signals. It offers basic and advanced features, such as a ST WideSurround, Equalizer, Automatic Loudness and Smart Volume Control for television viewer comfort. The STV8226/36 versions can perform additionally the SRS? 3D Surround for stereo and mono signals.

3. Audio Matrix: 3 stereo and 1 mono external analog audio inputs to loudspeakers and headphone, with 2 stereo external analog audio outputs (SCART compatible).

Key Features

■ NICAM, AM, FM Mono and FM 2 Carrier Stereo Demodulators for all sound carriers between 4.5 and 7 MHz

■ Mono input provided for optimum AM Demodulation performances

■ Demodulation controlled by Automatic Standard Recognition System

■ Sound IF AGC with wide range

■ Overmodulation and Carrier Offset recovery

■ Smart Volume Control

■ 5-band Equalizer & Bass/Treble Control

■ Automatic Loudness Control

■ Loudspeaker and Headphone outputs with Volume/Balance Controls and Beeper

■ Subwoofer output with Volume Control and Programmable Bandwidth

■ Spatial Sound Effects (ST WideSurround and Pseudo-Stereo)

■ SRS? 3D Surround

■ 3-to-2 Analog Stereo Audio I/Os (SCART compatible) with Audio Matrix

■ Low-noise Audio Mutes and Switches

■ I2S Output to interface with Dolby? Pro Logic? Decoder

■ I2C Bus-controlled

■ Single and standard 27 MHz Crystal Oscillator

■ Power supplies: 3.3 V Digital, 5 V or 8 V Analog

■ Embedded 3.3 V Regulators

■ Packages: SDIP56 or TQFP80