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1.1 Features

1

? High-Quality Audio Performance:

102-dB Analog-to-Digital Converter

(ADC)/105-dB Digital-to-Analog Converter

(DAC) (Typical) DNR

? Two Differential Stereo Analog Inputs

Multiplexed to One Stereo Input ADC

? One Differential Stereo Output DAC

? Two Serial Audio Inputs (Four Channels) and Two Serial Audio Outputs (Four Channels)

? 135-MHz Maximum Speed, >2812 Total

Processing Cycles Per Sample at 48 kHz (2000

Available for Application Code)

? 512×Fs XTAL Input in Master Mode,

512×Fs MCLK_IN in Slave Mode

? 48-kHz Sample Rate in Clock Master Mode

? 44.1-kHz or 48-kHz Sample Rate in Clock Slave

Mode

? 48-Bit Data Path and 28-Bit Coefficients

? 768 Words of 48-Bit Data Memory

? 1022 Words of 28-Bit Coefficient Memory

? 3K Words of 55-Bit Program RAM

? Hardware Single-Cycle Multiplier (28×48)

? 5.88K Words of 24-Bit Delay Memory

(122.5 ms at 48 kHz)

? Data Formats: Left Justified, Right Justified,

and I2S

? Two I2C Ports for Slave/Master Download

? Single 3.3-V Power Supply

1.2 Applications

? MP3 Docking Systems

? Digital Televisions

? Mini-Component Audio

1.3 Description

The TAS3202 is an audio system-on-a-chip (SOC) designed for mini/micro systems, multimedia-speaker,

and MP3 player docking systems. It includes analog interface functions: two multiplex (MUX) stereo inputs

with one stereo analog-to-digital converter (ADC) and one stereo digital-to-analog converter (DAC) with

analog outputs consisting of differential stereo line drivers. Four channels of serial digital audio processing

are also provided. The TAS3202 has a programmable audio digital signal processor (DSP) that preserves

high-quality audio by using a 48-bit data path, 28-bit filter coefficients, and a single-cycle 28×48-bit

multiplier. The programmability feature allows users to customize features in the DSP RAM.

The TAS3202 is composed of eight functional blocks:

1. Analog input/mux/stereo ADC

2. Stereo DAC

3. Analog reference system

4. Power supply

5. Clocks, digital PLL, and serial data interface

6. I2C control interface

7. 8051 microcontroller

8. Audio DSP – digital audio processing