參數(shù)資料
型號(hào)： ADAU1702JSTZ
廠商： ANALOG DEVICES INC
元件分類： 消費(fèi)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(yè)數(shù)： 15/52頁(yè)
文件大小： 773K
代理商： ADAU1702JSTZ
ADAU1702
OVERVIEW
The core of the ADAU1702 is a 28-bit DSP (56-bit with double-
precision processing) optimized for audio processing. The
program and parameter RAMs can be loaded with a custom
audio processing signal flow built by using SigmaStudio graphical
programming software from Analog Devices, Inc. The values
stored in the parameter RAM control individual signal processing
blocks, such as equalization filters, dynamics processors, audio
delays, and mixer levels. A safeload feature allows for transparent
parameter updates and prevents clicks in the output signals.
The program RAM, parameter RAM, and register contents can
be saved in an external EEPROM, from which the ADAU1702
can self-boot on start-up. In this standalone mode, parameters
can be controlled through the on-board multipurpose pins. The
ADAU1702 can accept controls from switches, potentiometers,
rotary encoders, and IR receivers. Parameters such as volume
and tone settings can be saved to the EEPROM on power-down
and recalled again on power-up.
The ADAU1702 can operate with digital or analog inputs and
outputs, or a mix of both. The stereo ADC and four DACs each
have an SNR of at least +100 dB and a THD + N of at least
83 dB. The 8-channel, flexible serial data input/output ports
allow glueless interconnection to a variety of ADCs, DACs,
general-purpose DSPs, S/PDIF receivers and transmitters, and
sample rate converters. The serial ports of the ADAU1702 can
be configured in I
2
S, left-justified, right-justified, or TDM serial
port compatible modes.
Twelve multipurpose (MP) pins allow the ADAU1702 to input
external control signals and output flags or controls to other
devices in the system. The MP pins can be configured as digital
I/Os, inputs to the 4-channel auxiliary ADC, or set up as the
serial data I/O ports. As inputs, they can be connected to buttons,
switches, rotary encoders, potentiometers, IR receivers, or other
external circuitry to control the internal signal processing program.
When configured as outputs, these pins can be used to drive
LEDs, control other ICs, or connect to other external circuitry
in an application.
The ADAU1702 has a sophisticated control port that supports
complete read/write capability of all memory locations. Control
registers are provided to offer complete control of the chip’s
configuration and serial modes. The ADAU1702 can be
configured for either SPI or I
2
C control, or can self-boot from
an external EEPROM.
An on-board oscillator can be connected to an external crystal
to generate the master clock. In addition, a master clock phase-
locked loop (PLL) allows the ADAU1702 to be clocked from a
Rev. 0 | Page 15 of 52
variety of different clock speeds. The PLL can accept inputs of
64 × f
S
, 256 × f
S
, 384 × f
S
, or 512 × f
S
to generate the internal
master clock of the core.
The SigmaStudio software is used to program and control the
SigmaDSP through the control port. Along with designing and
tuning a signal flow, the tools can be used to configure all of the
DSP registers and burn a new program into the external EEPROM.
SigmaStudio’s graphical interface allows anyone with digital or
analog audio processing knowledge to easily design a DSP
signal flow and port it to a target application. At the same time,
it provides enough flexibility and programmability for an
experienced DSP programmer to have in-depth control of the
design. In SigmaStudio, the user can connect graphical blocks
(such as biquad filters, dynamics processors, mixers, and
delays), compile the design, and load the program and
parameter files into the ADAU1702 memory through the
control port. Signal processing blocks available in the provided
libraries include
Single- and double-precision biquad filters
Processors with peak or rms detection for monochannel
and multichannel dynamics
Mixers and splitters
Tone and noise generators
Fixed and variable gain
Loudness
Delay
Stereo enhancement
Dynamic bass boost
Noise and tone sources
FIR filters
Level detectors
GPIO control and conditioning
Additional processing blocks are always being developed.
Analog Devices also provides proprietary and third-party
algorithms for applications such as matrix decoding, bass
enhancement, and surround virtualizers. Contact Analog
Devices for information about licensing these algorithms.
The ADAU1702 operates from a 1.8 V digital power supply
and a 3.3 V analog supply. An on-board voltage regulator can
be used to operate the chip from a single 3.3 V supply. It is
fabricated on a single monolithic, integrated circuit and is
packaged in a 48-lead LQFP for operation over the 0°C to
+70°C temperature range.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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(biāo)準(zhǔn)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
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(biāo)準(zhǔn)包裝:2,500 系列:- 類型:PCM 數(shù)據(jù)接口:PCM 音頻接口 分辨率（位）:15 b ADC / DAC 數(shù)量:1 / 1 三角積分調(diào)變:是 S/N 比，標(biāo)準(zhǔn) ADC / DAC (db):- 動(dòng)態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db):- 電壓 - 電源，模擬:2.7 V ~ 3.3 V 電壓 - 電源，數(shù)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(yīng)商設(shè)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(biāo)準(zhǔn)包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動(dòng)態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)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(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR)
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