下载
TAS3202
www.ti.com
SLES208B–JUNE 2009–REVISED MARCH 2011
AUDIO DSP WITH ANALOG INTERFACE
Check for Samples: TAS3202
1 Introduction
1.1 Features
1
• High-Quality Audio Performance: • 48-kHz Sample Rate in Clock Master Mode
102-dB Analog-to-Digital Converter
• 44.1-kHz or 48-kHz Sample Rate in Clock Slave
(ADC)/105-dB Digital-to-Analog Converter
Mode
(DAC) (Typical) DNR
• 48-Bit Data Path and 28-Bit Coefficients
• Two Differential Stereo Analog Inputs
• 768 Words of 48-Bit Data Memory
Multiplexed to One Stereo Input ADC
• 1022 Words of 28-Bit Coefficient Memory
• One Differential Stereo Output DAC
• 3K Words of 55-Bit Program RAM
• Two Serial Audio Inputs (Four Channels) and
• Hardware Single-Cycle Multiplier (28×48)
Two Serial Audio Outputs (Four Channels)
• 5.88K Words of 24-Bit Delay Memory
• 135-MHz Maximum Speed, >2812 Total
(122.5 ms at 48 kHz)
Processing Cycles Per Sample at 48 kHz (2000
• Data Formats: Left Justified, Right Justified,
Available for Application Code)
and I
2
S
• 512×Fs XTAL Input in Master Mode,
• Two I
2
C Ports for Slave/Master Download
512×Fs MCLK_IN in Slave Mode
• 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. I
2
C control interface
7. 8051 microcontroller
8. Audio DSP – digital audio processing
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2009–2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
页面指南
