ADAU1701JSTZ Analog Devices DSP IC AUDIO PROC 2ADC/4DAC 48-LQFP

ADAU1701JSTZ

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Description

IC AUDIO PROC 2ADC/4DAC 48-LQFP
Mfr Part # : ADAU1701JSTZ
Manufacturer : Analog Devices
Package/Case : 48-LQFP
Product Categories : DSP
Part Status : Active
RoHS : To Be Confirmed
ECAD Model : PCB Symbol, Footprint
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ADAU1701JSTZ Overview

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 perfor-mance. 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 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 ADAU1701 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 ADAU1701 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)

ECAD Model

Footprint

Features

28-/56-bit, 50 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
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 a master clock from crystal
PLL for generating master clock from 64 × fS, 256 × fS, , 384 × fS, , or 512 × fS, clocks
See data sheet for additional features