ADAU1401A

更新时间： 2024-02-06 04:20:24

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
52页	909K
描述
SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four DACs

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技术参数
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ADAU1401A 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	LFQFP, QFP48,.35SQ,20	针数：	48
Reach Compliance Code：	compliant	HTS代码：	8542.39.00.01
风险等级：	5.64	商用集成电路类型：	CONSUMER CIRCUIT
JESD-30 代码：	S-PQFP-G48	JESD-609代码：	e3
长度：	7 mm	功能数量：	1
端子数量：	48	最高工作温度：	105 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	LFQFP	封装等效代码：	QFP48,.35SQ,20
封装形状：	SQUARE	封装形式：	FLATPACK, LOW PROFILE, FINE PITCH
峰值回流温度（摄氏度）：	260	电源：	1.8,3.3 V
认证状态：	Not Qualified	座面最大高度：	1.6 mm
子类别：	Other Consumer ICs	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	MATTE TIN
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	7 mm	Base Number Matches：	1

ADAU1401A 数据手册

SigmaDSP 28-/56-Bit Audio Processor

with Two ADCs and Four DACs

ADAU1401A

FEATURES

GENERAL DESCRIPTION

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

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.

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

PLL for generating master clock from 64 × f_S, 256 × f_S,

384 × f_S, or 512 × f_Sclocks

Flexible serial data input/output ports with I²S-compatible,

left-justified, right-justified, and TDM modes

Sampling rates of up to 192 kHz supported

On-chip voltage regulator for compatibility with 3.3 V systems

48-lead, plastic LQFP

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.

APPLICATIONS

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)

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.

FUNCTIONAL BLOCK DIAGRAM

DIGITAL VDD DIGITAL GROUND

ANALOG VDD

ANALOG PLL MODE PLL LOOP

CRYSTAL

GROUND

FILTER

3.3V

PLL

CLOCK OSCILLATOR

1.8V

REGULATOR

ADAU1401A

FILTD/CM

2-CHANNEL

ANALOG

INPUT

STEREO

ADC

DAC

4-CHANNEL

ANALOG

OUTPUT

28-/56-BIT, 50MIPS

AUDIO PROCESSOR CORE, 40ms DELAY MEMORY

FILTA/

ADC_RES

CONTROL INTERFACE

AND SELF-BOOT

8-CHANNEL

DIGITAL INPUT

8-BIT AUX

ADC

8-CHANNEL

DIGITAL OUTPUT

RESET/

MODE

SELECT

GPIO

INPUT/OUTPUT MATRIX

RESET SELF-BOOT

DIGITAL IN OR GPIO AUX ADC OR GPIO

DIGITAL OUT OR GPIO

I C/SPI AND WRITEBACK

Figure 1.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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