ADAU1702
Info: : PRODUCTION
searchIcon
cartIcon

ADAU1702

SigmaDSP® 28-/56-Bit Audio Processor with Two ADCs and Four DACs

Show More showmore-icon

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $4.73
Features
  • 28-/56-bit, 25 MIPS digital audio processor
  • 2 ADCs: SNR of 100 dB, THD + N of −83 dB
  • 4 DACs: SNR of 104 dB, THD + N of −90 dB
  • Complete standalone operation
  • Auxiliary ADC with 4-input mux for analog control
  • GPIOs for digital controls and outputs
  • Fully programmable with SigmaStudio graphical tool
  • Self-boot from serial EEPROM
  • 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 a master clock from 64 × fS, 256 × fS, 384 × fS, or 512 × fSclocks
  • Please see data sheet for additional features
Additional Details
show more Icon

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. This processing can be used to compensate for real-world limitations of speakers, amplifiers, and listening environments, providing dramatic improvements in 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 I2C bus or a 4-wire SPI port.

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)
Part Models 2
1ku List Price Starting From $4.73

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADAU1702JSTZ
  • HTML
  • HTML
ADAU1702JSTZ-RL
  • HTML
  • HTML

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Feb 1, 2024

- 24_0009

Qualification of alternative Wafer Fab for TSMC 0.18um Mixed Signal CMOS Process

Dec 7, 2016

- 16_0033

Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select QFP Products

Jan 5, 2009

- 07_0077

Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Feb 1, 2024

- 24_0009

arrow down

Qualification of alternative Wafer Fab for TSMC 0.18um Mixed Signal CMOS Process

Dec 7, 2016

- 16_0033

arrow down

Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select QFP Products

Jan 5, 2009

- 07_0077

arrow down

Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

EVAL-ADAU1701

ADAU1701 Evaluation Board

zoom

EVAL-ADAU1701

ADAU1701 Evaluation Board

ADAU1701 Evaluation Board

Features and Benefits

EVAL-ADAU1701MINIZ
  • Other ADI Components:
    SSM2306
    ADM811
    ADP3336
  • Analog In: 1 Stereo TRS (3.5mm)
  • Analog Out: Stereo Speaker, 1 Stereo TRS (3.5 mm)
  • Digital I/O: USBi-I2C/SPI
  • DC Supply: 5 V

Product Detail

Small ADAU1701 SigmaDSP evaluation board with self-boot EEPROM and Stereo 2 W Class-D amplifier. USBi is included in the package and it provides the 5 V power supply for the board. This is the recommended board for evaluation of the ADAU1701 and ADAU1702. The EVAL-ADAU1401EBZ can be used if this board lacks some necessary functionality or interface.
Tools & Simulations

Tools & Simulations 1

Recently Viewed