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AD74322 PDF预览

AD74322

更新时间: 2024-02-28 04:40:16
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
20页 122K
描述
Low Cost, Low Power Stereo Audio Analog Front End

AD74322 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:TSSOP包装说明:TSSOP-16
针数:16Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:5.92
其他特性:IT ALSO REQUIRES 2.7 TO 3.3V SUPPLY商用集成电路类型:CONSUMER CIRCUIT
JESD-30 代码:R-PDSO-G16JESD-609代码:e0
长度:5 mm功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:1.1 mm
最大供电电压 (Vsup):2.75 V最小供电电压 (Vsup):2.25 V
表面贴装:YES温度等级:INDUSTRIAL
端子面层:TIN LEAD端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:4.4 mm
Base Number Matches:1

AD74322 数据手册

 浏览型号AD74322的Datasheet PDF文件第2页浏览型号AD74322的Datasheet PDF文件第3页浏览型号AD74322的Datasheet PDF文件第4页浏览型号AD74322的Datasheet PDF文件第5页浏览型号AD74322的Datasheet PDF文件第6页浏览型号AD74322的Datasheet PDF文件第7页 
LowCost,LowPower  
a
Preliminary Technical Data  
StereoAudioAnalogFrontEnd  
AD74322  
FEATURES  
FUNCTIONALBLOCKDIAGRAM  
2.5V Stereo Audio Codec w ith 3.3 V Tolerant Digital  
Interface  
Supports 96 kHz Sam ple Rates  
Supports 16/ 18 / 20/ 24-Bit Word Lengths  
Multibit Sigm a Delta Modulators w ith  
“Perfect Differential Linearity Restoration” for  
Reduced Idle Tones and Noise Floor  
Data Directed Scram bling DACs - Least Sensitive to J itter  
Perform ance (20 Hz to 20 kHz)  
DVDD1(EXT) DVDD2(INT) CLKIN  
AVDD  
VIN1P  
ADC  
CDIN  
CDOUT  
CCLK  
CHANNEL 1  
Control  
SPI  
VIN1N  
Block  
Port  
VIN2P  
ADC  
CLATCH  
CHANNEL 2  
VIN2N  
ASDATA/SDO  
DSDATA/SDI  
LRCLK/SDIFS  
SDOFS  
VOUT1P  
VOUT1N  
VOUT2P  
VOUT2N  
DAC  
90 dB ADC and DAC SNR  
CHANNEL 1  
2
I S  
Digitally Program m able Input/ Output Gain  
On-chip Volum e Controls Per Output Channel  
Hardw are and Softw are Controllable Clickless Mute  
Supports 256xFs, 512xFs and 768xFs Master Mode Clocks  
Master Clock Pre-Scaler for use w ith DSP m aster clocks  
Flexible Serial Data Port w ith Right-J ustified, Left-  
J ustified, I2S-Com patible and DSP Serial Port Modes  
Supports Packed Data Mode (TDM) for cascading  
devices.  
Port  
DAC  
Reference  
BCLK/SCLK  
CHANNEL 2  
REFCAP  
AGND  
AVDD  
DGND  
DVDD1(EXT) DVDD2(INT) CLKIN  
ADC  
CDIN  
CDOUT  
CCLK  
VIN1  
On-Chip Reference  
16, 20 and 24-Lead SOIC, SSOP and TSSOP Package  
options.  
CHANNEL 1  
Control  
SPI  
Block  
Port  
ADC  
CLATCH  
VIN2  
CHANNEL 2  
APPLICATIONS  
Digital Video Cam corders (DVC)  
Portable Audio Devices (Walkm an etc)  
Audio Processing  
Voice Processing  
Conference Phones  
ASDATA  
DSDATA  
LRCLK  
DAC  
VOUT1  
VOUT2  
CHANNEL 1  
2
I S  
Port  
DAC  
Reference  
General Purpose Analog I/ O  
BCLK  
CHANNEL 2  
G E NE R AL D E S C R IP T IO N  
REFCAP  
DGND  
AGND  
AVDD  
T he AD74322 is a front-end processor for general purpose  
audio and voice applications. It features two multi-bit Σ∆  
A/D conversion channels and two multi-bit Σ∆ D/A  
conversion channels. Each ADC channel provides >85 dB  
signal-to-noise ratio while each DAC channel provides  
>90 dB, both over an audio signal bandwidth.  
DVDD1(EXT) DVDD2(INT) CLKIN  
ADC  
VIN1  
CHANNEL 1  
Control  
Block  
ADC  
T he AD74322 is particularly suitable for a variety of ap-  
plications where stereo input and output channels are  
required, including audio sections of Digital Video  
Camcorder, portable personal audio devices and the  
analog front ends of conference phones . Its high quality  
performance also make it suitable for speech and telephony  
applications such as speech recognition and synthesis and  
modern feature phones.  
VIN2  
CHANNEL 2  
SDO  
SDI  
DAC  
VOUT1  
VOUT2  
CHANNEL 1  
Data  
Port  
SDIFS  
SDOFS  
SCLK  
DAC  
Reference  
CHANNEL 2  
REFCAP  
AGND  
DGND  
REV. Pr D 03/00  
Inform ation furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assum ed by Analog Devices for its  
use, nor for any infringem ents of patents or other rights of third parties  
which m ay result from its use. No license is granted by im plication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norw ood, MA 02062-9106, U.S.A.  
Tel: 781/ 329-4700  
Fax: 781/ 326-8703  
World Wide Web Site: http:/ / w w w.analog.com  
Analog Devices, Inc., 1998  

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