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| 型號： | ADAU1701JSTZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費家電 |
| 英文描述： | SigmaDSP 28/56-Bit Audio Processor with 2ADC/4DAC |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MS-026BBC, LQFP-48 |
| 文件頁數(shù)： | 1/43頁 |
| 文件大小： | 625K |
| 代理商： | ADAU1701JSTZ |
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SigmaDSP
28/56-Bit Audio
Processor with 2ADC/4DAC
Preliminary Technical Data
ADAU1701
FEATURES
28/56-bit, 50 MHz digital audio processor
Stereo ADC: 100 dB SNR and -80 dB THD+N
4-channel DAC: 104 dB SNR and -90 dB THD+N
Complete stand-alone operation
Self-boot from serial EEPROM
Auxiliary ADC with four-input mux for analog
control
GPIOs for digital controls and outputs
Fully programmable with SigmaStudio graphical tool
28-bit × 28-bit multiplier with 56-bit accumulator for full
double precision processing
Clock Oscillator for generating master clock from crystal
PLL for generating master clock from 64 × f
S
, 256 × f
S
,
384 × f
S
, or 512 × f
S
clocks
Flexible serial data I/O ports with I
2
S compatible, left-
justified, right-justified, and TDM modes
Sampling rates up to 192 kHz supported
On-chip voltage regulator for compatibility with 3.3 V
systems
48-lead LQFP plastic package
APPLICATIONS
Multimedia speaker systems
MP3 player speaker docks
Automotive head units
Mini-component stereos
Digital televisions
Studio monitors
Speaker crossovers
Musical instrument effects processors
In-seat sound systems (aircraft/motor coaches)
FUNCTIONAL BLOCK DIAGRAM
3
3
3
3
3
2
2
2
5
4
4
4
CONTROL
INTERFACE
AND
SELFBOOT
8-CH
DIGITAL
INPUT
8-BIT
AUX
ADC
GPIO
8-CH
DIGITAL
OUTPUT
RESET/
MODE
SELECT
STEREO
ADC
I2C/SPI &
WRITEBACK
RESET
SELF
BOOT
INPUT/OUTPUT MATRIX
AUX ADC
OR
GPIO
DIGITAL OUT
OR
GPIO
DIGITAL IN
OR
GPIO
Figure 1.
DAC
DAC
28/56-BIT, 50 MHz
AUDIO PROCESSOR CORE
40 ms DELAY MEMORY
S
4-CHANNEL
ANALOG
OUTPUT
FILTD / CM
CLOCK
OSCILLATOR
CRYSTAL
PLL
PLL
LOOP
FILTER
PLL
MODE
ANALOG
GROUND
ANALOG
VDD
DIGITAL
GROUND
DIGITAL
VDD
1.8V
REGULATOR
3.3V
2-CHANNEL
ANALOG
INPUT
FILTA /
ADC_RES
GENERAL DESCRIPTION
The ADAU1701 is a complete audio system-on-a-chip
including a 28/56-bit audio DSP, ADCs and DACs, and
microcontroller-like control interfaces. Signal processing
includes equalization, crossover, bass enhancement, multiband
dynamics processing, delay compensation, speaker
compensation, and stereo image widening. These algorithms
can be used to compensate for the real-world limitations of
speakers, amplifiers, and listening environments, resulting in a
dramatic improvement of perceived audio quality.
The signal processing used in the ADAU1701 is comparable to
that found in high end studio equipment. Most of the
processing is done in full 56-bit double-precision mode,
resulting in very good low level signal performance. The
ADAU1701 is a fully-programmable DSP. The easy-to-use
SigmaStudio software allows the user to graphically configure a
custom signal processing flow using blocks such as biquad
filters, dynamics processors, level controls, and GPIO interface
controls.
ADAU1701 programs can be loaded on power-up either from a
serial EEPROM though its own self-boot mechanism or from
an external microcontroller. On power-down, the current state
of the parameters can be written back to the EEPROM from the
ADAU1701 to be recalled the next time the program is run.
The ADAU1701’s two sigma-delta (Σ-Δ ) ADCs and four Σ-Δ
DACs provide an analog-in to analog-out dynamic range
greater than 100 dB. The ADC’s THD+N is -80 dB and the
DAC’s is -90 dB. Digital input and output ports allow a glueless
connection to additional ADCs and DACs. The ADAU1701
communicates through either an I
2
C bus or a 4-wire SPI port.
Rev. PrF
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: 781.461.3113
2006 Analog Devices, Inc. All rights reserved.
www.analog.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADAU1701JSTZ-RL | 功能描述:IC AUDIO PROC 2ADC/4DAC 48-LQFP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:SigmaDSP® 其它有關(guān)文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6 |
| ADAU1701MINIBZ | 制造商:Analog Devices 功能描述:EVAL BD SIGMADSPMULTICHANAUDIO PROCESSOR - Bulk |
| ADAU1702 | 制造商:AD 制造商全稱:Analog Devices 功能描述:SigmaDSP 28-56-Bit Audio Processor with Two ADCs and Four DACs |
| ADAU1702JSTZ | 功能描述:IC AUDIO PROC 2ADC/4DAC 48-LQFP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:SigmaDSP® 其它有關(guān)文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6 |
| ADAU1702JSTZ-RL | 功能描述:IC AUDIO PROC 2ADC/4DAC 48-LQFP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:SigmaDSP® 其它有關(guān)文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6 |
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