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| 型號： | EVAL-AD73322EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | EvaluationBoardforLowCost,LowPower, CMOSGerneralPurposeDualAnalogFrontEnd |
| 中文描述： | EvaluationBoardforLowCost，低功率，CMOSGerneralPurposeDualAnalogFrontEnd |
| 文件頁數(shù)： | 1/40頁 |
| 文件大小： | 437K |
| 代理商： | EVAL-AD73322EB |
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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. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
a
AD73322L
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
www.analog.com
Analog Devices, Inc., 2001
Low Cost, Low Power CMOS
General-Purpose Dual Analog Front End
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
AD73322L
FEATURES
Two 16-Bit A/D Converters
Two 16-Bit D/A Converters
Programmable Input/Output Sample Rates
78 dB ADC SNR
78 dB DAC SNR
64 kS/s Maximum Sample Rate
–90 dB Crosstalk
Low Group Delay (25
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
Single (2.7 V to 3.3 V) Supply Operation
50 mW Typ Power Consumption at 3.0 V
Temperature Range: –40 C to +105 C
On-Chip Reference
28-Lead SOIC, TSSOP, and 44-Lead LQFP Packages
s Typ per ADC Channel,
APPLICATIONS
General-Purpose Analog I/O
Speech Processing
Cordless and Personal Communications
Telephony
Active Control of Sound and Vibration
Data Communications
Wireless Local Loop
GENERAL DESCRIPTION
The AD73322L is a dual front-end processor for general pur-
pose applications including speech and telephony. It features
two 16-bit A/D conversion channels and two 16-bit D/A con-
version channels. Each channel provides 78 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 Interface Circuits (SLICs).
The AD73322L 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.
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 AD73322L is available in 28-lead SOIC, 28-lead TSSOP,
and 44-lead LQFP packages.
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| EVAL-AD73322EZ | Low Cost, Low Power CMOS General-Purpose Dual Analog Front End |
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| EVAL-AD73322EZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Cost, Low Power CMOS General-Purpose Dual Analog Front End |
| EVAL-AD73322LEB | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Cost, Low Power CMOS General-Purpose Dual Analog Front End |
| EVAL-AD73360EB | 制造商:Analog Devices 功能描述:EVALUATION BOARD I.C. - Bulk |
| EVAL-AD73360EZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:Six-Input Channel Analog Front End |
| EVAL-AD73360LEB | 制造商:Analog Devices 功能描述:EVALUATION I.C. - Bulk |
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