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參數資料
| 型號： | ADAU1401YSTZ-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： | 15/52頁 |
| 文件大小： | 785K |
| 代理商： | ADAU1401YSTZ-RL |
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ADAU1401
OVERVIEW
The core of the ADAU1401 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 ADAU1401
can self-boot on startup. In this standalone mode, parameters
can be controlled through the on-board multipurpose pins. The
ADAU1401 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 ADAU1401 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 ADAU1401 can
be configured in I
2
S, left-justified, right-justified, or TDM serial
port compatible modes.
Twelve multipurpose (MP) pins allow the ADAU1401 to receive
external control signals as input and to 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 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 ADAU1401 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 ADAU1401 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 ADAU1401 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 ADAU1401 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 ADAU1401 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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| ADAU1442YSVZ-3A | 功能描述:IC SIGMADSP 28B 175MHZ 100TQFP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:SigmaDSP® 其它有關文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應用:數字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應商設備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6 |
| ADAU1442YSVZ-3A-RL | 功能描述:IC SIGMADSP 28B 175MHZ 100TQFP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:SigmaDSP® 其它有關文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應用:數字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應商設備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6 |
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