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| 型號： | AD73322LYRZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/48頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ANALOG FRONT END DUAL 28-SOIC |
| 標(biāo)準(zhǔn)包裝： | 27 |
| 位數(shù)： | 16 |
| 通道數(shù)： | 4 |
| 功率（瓦特）： | 73mW |
| 電壓 - 電源，模擬： | 2.7 V ~ 5.5 V |
| 電壓 - 電源，數(shù)字： | 2.7 V ~ 5.5 V |
| 封裝/外殼： | 28-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SOIC W |
| 包裝： | 管件 |
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Low Cost, Low Power CMOS
General-Purpose Dual Analog Front End
AD73322L
Rev. A
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
Fax: 781.326.8703
2004 Analog Devices, Inc. All rights reserved.
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 kHz 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 allows up to 4 dual codecs to be
connected in cascade, giving 8 I/O channels
Single-supply operation (2.7 V to 3.3 V)
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
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-
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 78 dB signal-
to-noise ratio over a voice-band 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 appli-
cations 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.
FUNCTIONAL BLOCK DIAGRAM
SDOFS
ADC CHANNEL 1
REFERENCE
DAC CHANNEL 1
ADC CHANNEL 2
DAC CHANNEL 2
SPORT
AVDD1
AVDD2
DVDD
VFBP1
VINP1
VINN1
VFBN1
VFBP2
VINP2
VINN2
VFBN2
VOUTP2
VOUTN2
AGND1 AGND2
DGND
SDO
MCLK
RESET
SE
SCLK
SDIFS
SDI
AD73322L
00691-001
VOUTP1
VOUTN1
REFCAP
REFOUT
Figure 1.
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 allows 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
cascaded 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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD73322LYST | 制造商:Analog Devices 功能描述: |
| AD73322LYSTZ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD73360 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Six-Input Channel Analog Front End |
| AD73360AR | 制造商:Analog Devices 功能描述:AFE General Purpose 6ADC 16-Bit 5V 28-Pin SOIC W 制造商:Analog Devices 功能描述:IC 16-BIT ADC |
| AD73360AR-REEL | 制造商:Analog Devices 功能描述:AFE General Purpose 6ADC 16-Bit 5V 28-Pin SOIC W T/R 制造商:Analog Devices 功能描述:AFE GEN PURPOSE 6ADC 16BIT 5V/5V/5V 28SOIC W - Tape and Reel |
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