Overview

The STA321 is a single chip solution for digital audio processing applications of up to 4.0 channels.

The STA321 is part of the Sound Terminal? family that together with the digital power stage provides full digital audio streaming to the speaker, offering cost effectiveness, low energy dissipation and sound enrichment.

Features

■ High efficiency FFX? class-D modulator

■ 100-dB dynamic range

■ Two stereo channels with I2S input/output data interface

■ 16-bit stereo ADC input with PGA and microphone biasing

■ Analog and digital muxing/mixing capability

■ 4-channel input sample rate converter (8 kHz to 192 kHz)

■ Four channels of 24-bit audio processing

■ Flexible channel mapping and routing

■ Output configurations:

– 2.0

– 2.1

– 4.0

– Mono

■ Embedded CMOS bridge: up to 0.5 W/channel

■ pfStart? for pop-free single-ended operations

■ Play and record simultaneous operation

■ Pre and post mix stages

■ Individual channel and master gain/attenuation

■ Digital gain/attenuation -105 dB to +36 dB in 0.5-dB steps

■ Soft volume update and muting

■ DC-blocking selectable high-pass filter

■ Selectable de-emphasis filter

■ Up to 13 28-bit user programmable biquads (EQ) per channel

■ Bass/treble tone control

■ Ternary, binary or phase shift modulation

■ PWM output

■ Headphone output with jack detector

■ I2C control.

STA321屬于集成電路（IC） > 音頻專用。意法半導體（ST）集團制造生產的STA321音頻專用音頻專用的半導體器件專為音頻信號的濾波、驅動、放大、轉換和接口而設計。特征包括功能、應用、通道數、接口、電壓和規(guī)格。應用包括音頻系統(tǒng)、汽車音頻、消費類音頻、樂器、專業(yè)音頻、通信系統(tǒng)、電信系統(tǒng)、數字音頻、驅動器、前置放大器、信號混合、信號處理、語音觸發(fā)器解決方案和 10 Base-T。