參數(shù)資料
型號(hào)： AD73322
廠商： Analog Devices, Inc.
英文描述： Low Cost, Low Power CMOS General Purpose Dual Analog Front End(低成本，低功耗的CMOS通用雙模擬前端處理器)
中文描述： 低成本，低功耗CMOS通用雙模擬前端（低成本，低功耗的的CMOS通用雙模擬前端處理器）
文件頁(yè)數(shù)： 1/43頁(yè)
文件大?。?/td> 427K
代理商： AD73322
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
AD73322
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1998
a
Low Cost, Low Power CMOS
General Purpose Dual Analog Front End
FEATURES
Two 16-Bit A/D Converters
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
m
s Typ per ADC Channel,
50
m
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
Single (+2.7 V to +5.5 V) Supply Operation
73 mW Typ Power Consumption at 3.0 V
On-Chip Reference
28-Lead SOIC and 44-Lead LQFP Packages
APPLICATIONS
General Purpose Analog I/O
Speech Processing
Cordless and Personal Communications
Telephony
Active Control of Sound and Vibration
Data Communications
Wireless Local Loop
FUNCTIONAL BLOCK DIAGRAM
REFCAP
SDOFS
SDO
ADC CHANNEL 1
REFERENCE
DAC CHANNEL 1
ADC CHANNEL 2
DAC CHANNEL 2
SPORT
AVDD1 AVDD2
DVDD
REFOUT
VFBP1
VINP1
VINN1
VFBN1
VOUTP1
VOUTN1
VFBP2
VINP2
VINN2
VFBN2
VOUTP2
VOUTN2
AGND1
AGND2
DGND
MCLK
RESET
SE
SCLK
SDIFS
SDI
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 77dB 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 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 A/D and D/A conversion channels feature programmable
input/output gains with ranges 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.
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 available in 28-lead SOIC and 44-lead LQFP
packages.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD73322AR 制造商:Analog Devices 功能描述:IC AUDIO CODEC
AD73322AR-REEL 制造商:Analog Devices 功能描述:Audio Codec 2ADC / 2DAC 16-Bit 28-Pin SOIC W T/R
AD73322AR-REEL7 制造商:Analog Devices 功能描述:Audio Codec 2ADC / 2DAC 16-Bit 28-Pin SOIC W T/R
AD73322ARZ 制造商:Analog Devices 功能描述:Audio Codec 2ADC / 2DAC 16-Bit 28-Pin SOIC W 制造商:Analog Devices 功能描述:AUD CODEC 2ADC / 2DAC 16BIT 28SOIC - Trays 制造商:Analog Devices 功能描述:Dual Voice Band Codec 16-Bit 3/5V SOIC28
AD73322ARZ-REEL 制造商:Analog Devices 功能描述:DUAL VOICE BAND ANALOG FRONT END IC (ROHS) - Tape and Reel 制造商:Analog Devices 功能描述:DUAL VOICEBAND ANALOG FRONT END IC
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