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參數資料
| 型號： | ADAU1702JSTZ-RL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費家電 |
| 英文描述： | SigmaDSP 28-56-Bit Audio Processor with Two ADCs and Four DACs |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MS-026BBC, LQFP-48 |
| 文件頁數： | 1/52頁 |
| 文件大小： | 773K |
| 代理商： | ADAU1702JSTZ-RL |
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SigmaDSP
28-/56-Bit Audio Processor
with Two ADCs and Four DACs
ADAU1702
FEATURES
28-/56-bit, 25 MIPS digital audio processor
Two ADCs: SNR of 100 dB, THD + N of 83 dB
Four DACs: SNR of 104 dB, THD + N of 90 dB
Complete standalone operation
Self-boot from serial EEPROM
Auxiliary ADC with 4-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 input/output 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, plastic LQFP
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 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
APPLICATIONS
Multimedia speaker systems
MP3 player speaker docks
Automotive head units
Minicomponent stereos
Digital televisions
Studio monitors
Speaker crossovers
Musical instrument effects processors
In-seat sound systems (aircraft/motor coaches)
GENERAL DESCRIPTION
The ADAU1702 is a complete single-chip audio system with a
28-/56-bit audio DSP, ADCs, DACs, and microcontroller-like
control interfaces. Signal processing includes equalization, cross-
over, bass enhancement, multiband dynamics processing, delay
compensation, speaker compensation, and stereo image widening
and can be used to compensate for real-world limitations of
speakers, amplifiers, and listening environments, providing a
dramatic improvements of perceived audio quality.
Its signal processing is comparable to that found in high
end studio equipment. Most processing is done in full 56-bit,
double-precision mode, resulting in very good low level signal
performance. The ADAU1702 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.
ADAU1702 programs can be loaded on power-up either from a
serial EEPROM through 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
ADAU1702 to be recalled the next time the program is run.
Two Σ-Δ ADCs and four Σ-Δ DACs provide a 98.5 dB analog
input to analog output dynamic. Each ADC has a THD + N of
83 dB, and each DAC has a THD + N of 90 dB. Digital input
and output ports allow a glueless connection to additional
ADCs and DACs. The ADAU1702 communicates through an
I
2
C bus or a 4-wire SPI port.
FUNCTIONAL BLOCK DIAGRAM
3
2
3
3
3
3
2
2
GPIO
INPUT/OUTPUT MATRIX
DIVDD
3.3V
DIGITAL
AVDD
ANALOG
PLL
FIPLL
CRYSTAL
0
A10ms DELAY MEMORY
2-ANALOG
INPUT
REG1.8V
SADC
ADFILTA/
MODE
SELECT
ICONTROL
SEAND
INPUT
D8-CH
AUX
ADC
RESET
SELF
DIGOR
GPIO
Figure 1.
AUOR
GPIO
DIGIOR
GPIO
I
2
WRIC/SPI
4
5
4
4
DAC
DAC
4-CHANNEL
FILTD/CM
PLL
OSCLOCK
ADAU1702
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| ADAU1761 | 制造商:AD 制造商全稱:Analog Devices 功能描述:SigmaDSP Stereo, Low Power, 96 kHz, 24-Bit Audio Codec with Integrated PLL |
| ADAU1761BCPZ | 功能描述:IC SIGMADSP CODEC PLL 32LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:SigmaDSP® 標準包裝:2,500 系列:- 類型:PCM 數據接口:PCM 音頻接口 分辨率（位）:15 b ADC / DAC 數量:1 / 1 三角積分調變:是 S/N 比，標準 ADC / DAC (db):- 動態范圍，標準 ADC / DAC (db):- 電壓 - 電源，模擬:2.7 V ~ 3.3 V 電壓 - 電源，數字:2.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-VFBGA 供應商設備封裝:80-BGA MICROSTAR JUNIOR（5x5） 包裝:帶卷 (TR) 其它名稱:296-21257-2 |
| ADAU1761BCPZ | 制造商:Analog Devices 功能描述:IC, AUDIO CODEC, 24BIT, 96KHZ, LFCSP-32 |
| ADAU1761BCPZ-R7 | 功能描述:IC SIGMADSP CODEC PLL 32LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:SigmaDSP® 標準包裝:2,500 系列:- 類型:立體聲音頻 數據接口:串行 分辨率（位）:18 b ADC / DAC 數量:2 / 2 三角積分調變:是 S/N 比，標準 ADC / DAC (db):81.5 / 88 動態范圍，標準 ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應商設備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR) |
| ADAU1761BCPZ-RL | 功能描述:IC SIGMADSP CODEC PLL 32LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:SigmaDSP® 標準包裝:2,500 系列:- 類型:立體聲音頻 數據接口:串行 分辨率（位）:18 b ADC / DAC 數量:2 / 2 三角積分調變:是 S/N 比，標準 ADC / DAC (db):81.5 / 88 動態范圍，標準 ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應商設備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR) |
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