STA304A 数据手册 ( 数据表 ) - STMicroelectronics

DESCRIPTION
The STA304A Digital Audio Processor is a single chip device implementing end to end digital solution for audio application. In conjunction with STA500 power bridge it gives the full digital DSP-to-power high quality chain with no need for audio Digital-to-Analog converters between DSP and power stage.

■ STA304AEND TO END DIGITAL AUDIO INTEGRATED SOLUTION
■ · DSP Functions:
    - DIGITAL VOLUME CONTROL
    - SOFT MUTE
    - BASS and TREBLE
    - PARAMETRIC EQ PER CHANNEL
    - BASS MANAGEMENT FOR SUBWOOFER
    - AUTO MUTE ON ZERO INPUT DETECTION
■ 4+1 DIRECT DIGITAL AMPLIFICATION (DDX™) OUTPUT CHANNELs
■ 6 CHANNELs PROGRAMMABLE SERIAL OUTPUT INTERFACE (by default I2S)
■ 4 CHANNELs PROGRAMMABLE SERIAL INPUT INTERFACE (by default I2S)
■ STEREO S/PDIF INPUT INTERFACE
■ Intel AC97 LINK (rev. 2.1) INPUT INTERFACE FOR AUDIO AND CONTROL
■ ON CHIP AUTOMATIC INPUT SAMPLING FREQUENCY DETECTION
■ 100 dB SNR SAMPLE RATE CONVERTER (1KHz SINUSOIDAL INPUT)
■ I2C CONTROL BUS
■ LOW POWER 3.3V CMOS TECHNOLOGY
■ EMBEDDED PLL FOR INTERNAL CLOCK GENERATION (1024x48 kHz = 49.152 MHz)
■ 6.144 MHz EXTERNAL INPUT CLOCK OR BUILT-IN INDUSTRY
    STANDARD XTAL OSCILLATOR
■ VARIABLE DIGITAL GAIN UP TO 24dB (0.75dB STEP)