ADAU1401A SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four DACs

ADAU1401A: SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four DACs

ADAU1401A 功能框图 The ADAU1401A is a complete, single-chip audio system with 28-/56-bit audio DSP, ADCs, DACs, and microcontroller-like control interfaces. Signal processing includes equalization, cross- over, bass enhancement, multiband dynamics processing, delay compensation, speaker compensation, and stereo image widening. This processing can be used to compensate for real-world limita-tions of speakers,amplifiers, and listening environments, providing dramatic improvements in perceived audio quality.

The signal processing of the ADAU1401A is comparable to that found in high end studio equipment. Most processing is done in full 56-bit, double-precision mode, resulting in very good low level signal performance. The ADAU1401A is a fully program-mable DSP. The easy to use SigmaStudio™ software allows the user to graphically configure a custom signal processing flow using blocks such as biquad filters, dynamics processors, level controls, and GPIO interface controls.

The ADAU1401A programs can be loaded on power-up either from a serial EEPROM through its own self-boot mechanism or from an external microcontroller. On power-down, the current state of the parameters can be written back to the EEPROM from the ADAU1401A to be recalled the next time the program is run.Two Σ-Δ ADCs and four Σ-Δ DACs provide a 98.5 dB analog input to analog output dynamic. Each ADC has a THD + N of −83 dB, and each DAC has a THD + N of −90 dB. Digital input and output ports allow a glueless connection to additional ADCs and DACs. The ADAU1401A communicates through an I²C® bus or a 4-wire SPI port.

技术特性

28-/56-bit, 50 MIPS digital audio processor
2 ADCs: SNR of 100 dB, THD + N of −83 dB
4 DACs: SNR of 104 dB, THD + N of −90 dB
Complete standalone operation
Self-boot from serial EEPROM
Auxiliary ADC with 4-input mux for analog control
GPIOs for digital controls and outputs
Fully programmable with SigmaStudio graphical tool
28-bit × 28-bit multiplier with 56-bit accumulator for full double-precision processing
Clock oscillator for generating master clock from crystal
See Data Sheet for Additional Information

技术指标

Instructions/Cycles: 1024
Digital I/O Channels: 8/8
Product Description: 28-/56-bit automotive audio processor with 2 ADCs and 4 DACs

应用领域

Multimedia speaker systems
MP3 player speaker docks
Automotive head units
Minicomponent stereos
Digital televisions
Studio monitors
Speaker crossovers
Musical instrument effects processors
In-seat sound systems (aircraft/motor coaches)

订购指南

产品型号	封装	引脚	温度范围	包装和数量	报价*(100-499)	报价*1000 pcs	RoHS
ADAU1401AWBSTZ 产品状态: 量产	LQFP 1.4 MM	48	汽车级	Tray, 250	$ 6.29	$ 5.68	Y 材料信息
ADAU1401AWBSTZ-RL 产品状态: 量产	LQFP 1.4 MM	48	汽车级	Reel, 2000	-	$ 5.68	Y 材料信息

ADAU1401 Evaluation Board

产品型号	描述	报价	RoHS
EVAL-ADAU1401AEBZ 产品状态: 量产	Full Capability Engineering Evaluation Board	$ 699.00	是
EVAL-ADAU1701MINIZ 产品状态: 量产	Limited Capability Evaluation Board	$ 195.00	是

ADAU1401A 应用技术支持与电子电路设计开发资源下载

ADAU1401A 数据手册DataSheet 下载 Rev A, 11/2010 (pdf 1180kB). pdf
ADI 模拟器件公司比较器产品选型指南 . pdf
Analog Devices, Inc. 美国模拟器件公司产品订购手册 .pdf