您的位置：维库电子市场网 > Datasheet > ADAU1702

ADAU1702 Datasheet

  • ADAU1702

  • SigmaDSP? 28/56-Bit Audio Processor with 2ADC/4DAC

  • 694.40KB

  • 38页

  • AD

阅览下载 纠错 0

扫码查看芯片数据手册

上传产品规格书

PDF预览

SigmaDSP
庐
28-/56-Bit Audio Processor
with Two ADCs and Four DACs
ADAU1702
FEATURES
28-/56-bit, 25 MIPS digital audio processor
Two ADCs: SNR of 100 dB, THD + N of 鈭?3 dB
Four DACs: SNR of 104 dB, THD + N of 鈭?0 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鈩?graphical tool
28-bit 脳 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 脳 f
S
, 256 脳 f
S
,
384 脳 f
S
, or 512 脳 f
S
clocks
Flexible serial data input/output ports with I
2
S-compatible,
left-justified, right-justified, and TDM modes
Sampling rates up to 192 kHz supported
On-chip voltage regulator for compatibility with 3.3 V systems
48-lead, plastic LQFP
GENERAL DESCRIPTION
The ADAU1702 is a complete single-chip audio system with a
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
and can be used to compensate for real-world limitations of
speakers, amplifiers, and listening environments, providing a
dramatic improvements of perceived audio quality.
Its signal processing 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 ADAU1702 is a fully programmable 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.
ADAU1702 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
ADAU1702 to be recalled the next time the program is run.
Two 危-螖 ADCs and four 危-螖 DACs provide a 98.5 dB analog
input to analog output dynamic. Each ADC has a THD + N of
鈭?3 dB, and each DAC has a THD + N of 鈭?0 dB. Digital input
and output ports allow a glueless connection to additional
ADCs and DACs. The ADAU1702 communicates through an
I
2
C庐 bus or a 4-wire SPI庐 port.
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)
FUNCTIONAL BLOCK DIAGRAM
PLL
DIGITAL DIGITAL ANALOG ANALOG PLL LOOP
VDD
GROUND VDD GROUND MODE FILTER
3.3V
3
3
3
3
3
CRYSTAL
2
1.8V
REGULATOR
PLL
CLOCK
OSCILLATOR
2
DAC
FILTD/CM
ADAU1702
2-CHANNEL
ANALOG
INPUT
FILTA/
ADC_RES
2
STEREO
ADC
28-/56-BIT, 25MIPS
AUDIO PROCESSOR CORE
10ms DELAY MEMORY
DAC
4-CHANNEL
ANALOG
OUTPUT
RESET/
MODE
SELECT
CONTROL
INTERFACE
AND
SELFBOOT
8-CH
DIGITAL
INPUT
8-BIT
AUX
ADC
GPIO
8-CH
DIGITAL
OUTPUT
INPUT/OUTPUT MATRIX
5
RESET
SELF
BOOT
I
2
C/SPI
AND
WRITEBACK
4
DIGITAL IN
OR
GPIO
4
4
05798-001
AUX ADC DIGITAL OUT
OR
OR
GPIO
GPIO
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 registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
漏2006 Analog Devices, Inc. All rights reserved.

ADAU1702相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

©2025 维库电子市场网（www.dzsc.com）　备案号：浙B2-20050339-1 经营许可证：浙B2-20210386版权声明
买家服务热线：0571-85317607 | 买家服务部QQ： QQ:1609526468
卖家服务热线：0571-85317607 | 卖家服务部QQ： QQ:331652727

扫码下载APP，
一键连接广大的电子世界。

在线人工客服

买家服务：
卖家服务：
技术客服：

0571-85317607

网站技术支持

13606545031

客服在线时间周一至周五
9:00-17:30

关注官方微信号，
第一时间获取资讯。

建议反馈
返回顶部

建议反馈

联系人：

联系方式：

按住滑块，拖拽到最右边
>>
感谢您向阿库提出的宝贵意见，您的参与是维库提升服务的动力！意见一经采纳，将有感恩红包奉上哦！

PDF纠错X

投诉电话：0571-85317607 投诉QQ：

如选匿名将无法为您反馈投诉结果，建议实名投诉！