Datasheet > EVAL-AD73322EZ

EVAL-AD73322EZ

更新时间： 2024-11-30 22:36:07

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
43页	389K
描述
Low Cost, Low Power CMOS General-Purpose Dual Analog Front End

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EVAL-AD73322EZ 数据手册

Low Cost, Low Power CMOS

General-Purpose Dual Analog Front End

AD73322

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Two 16-Bit A/D Converters

AVDD1 AVDD2

DVDD

Two 16-Bit D/A Converters

Programmable Input/Output Sample Rates

78 dB ADC SNR

77 dB DAC SNR

64 kS/s Maximum Sample Rate

–90 dB Crosstalk

Low Group Delay (25 ␮s Typ per ADC Channel,

50 ␮s Typ per DAC Channel)

Programmable Input/Output Gain

Flexible Serial Port which Allows Up to Four Dual

Codecs to be Connected in Cascade Giving Eight

I/O Channels

AD73322

VFBP1

VINP1

ADC CHANNEL 1

DAC CHANNEL 1

SDI

VINN1

VFBN1

SDIFS

VOUTP1

VOUTN1

SCLK

SPORT

REFOUT

REFCAP

REFERENCE

RESET

VFBP2

VINP2

MCLK

ADC CHANNEL 2

VINN2

VFBN2

Single (+2.7 V to +5.5 V) Supply Operation

73 mW Typ Power Consumption at 3.0 V

On-Chip Reference

SDOFS

SDO

VOUTP2

VOUTN2

DAC CHANNEL 2

AGND1 AGND2

28-Lead SOIC and 44-Lead LQFP Packages

DGND

APPLICATIONS

General Purpose Analog I/O

Speech Processing

Cordless and Personal Communications

Telephony

Active Control of Sound and Vibration

Data Communications

Wireless Local Loop

The A/D and D/A conversion channels feature programmable

input/output gains with ranges of 38 dB and 21 dB respectively.

An on-chip reference voltage is included to allow single-supply

operation. This reference is programmable to accommodate

either 3 V or 5 V operation.

GENERAL DESCRIPTION

The AD73322 is a dual front-end processor for general-purpose

applications including speech and telephony. It features two

16-bit A/D conversion channels and two 16-bit D/A conversion

channels. Each channel provides 77 dB signal-to-noise ratio

over a voiceband signal bandwidth. It also features an input-to-

output gain network in both the analog and digital domains.

This is featured on both codecs and can be used for impedance

matching or scaling when interfacing to Subscriber Line Inter-

face Circuits (SLICs).

The sampling rate of the codecs is programmable with four

separate settings, offering 64 kHz, 32 kHz, 16 kHz and 8 kHz

sampling rates (from a master clock of 16.384 MHz).

A serial port (SPORT) allows easy interfacing of single or cas-

caded devices to industry standard DSP engines. The SPORT

transfer rate is programmable to allow interfacing to both fast

and slow DSP engines.

The AD73322 is particularly suitable for a variety of applica-

tions in the speech and telephony area, including low bit rate,

high quality compression, speech enhancement, recognition, and

synthesis. The low group delay characteristic of the part makes

it suitable for single or multichannel active control applications.

The AD73322 is available in 28-lead SOIC and 44-lead LQFP

packages.

REV. B

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

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

Tel: 781/329-4700

Fax: 781/326-8703

World Wide Web Site: http://www.analog.com

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与EVAL-AD73322EZ相关器件

型号	品牌	获取价格	描述	数据表
EVAL-AD73322LEB	ADI	获取价格	Low Cost, Low Power CMOS General-Purpose Dual Analog Front End
EVAL-AD73360EB	ADI	获取价格	Six-Input Channel Analog Front End
EVAL-AD73360EZ	ADI	获取价格	Six-Input Channel Analog Front End
EVAL-AD73360LEB	ADI	获取价格	AD73360L Evaluation Board, Six Input Channel Analog Front End
EVAL-AD73422EB	ADI	获取价格	Dual Low Power CMOS Analog Front End with DSP Microcomputer
EVAL-AD7352EDZ	ADI	获取价格	Differential Input, Dual, Simultaneous Sampling, 3 MSPS, 12-Bit, SAR ADC
EVAL-AD7356EDZ	ADI	获取价格	Differential Input, Dual, Simultaneous Sampling, 5 MSPS, 12-Bit, SAR ADC
EVAL-AD7357EDZ	ADI	获取价格	Differential Input, Dual, Simultaneous Sampling, 4.2 MSPS, 14-Bit, SAR ADC
EVAL-AD7366CBZ	ADI	获取价格	True Bipolar Input, Dual 1 レs, 12-/14-Bit, 2-
EVAL-AD7366SDZ	ADI	获取价格	BOARD EVAL FOR AD7366

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