ADAU1450 datasheet(5/180 Pages) AD

Part #	ADAU1450

Description	SigmaDSP Digital Audio Processor

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Data Sheet

ADAU1452/ADAU1451/ADAU1450

FUNCTIONAL BLOCK DIAGRAM—ADAU1450

INPUT

CLOCK

DOMAINS

(×4)

OUTPUT

CLOCK

DOMAINS

(×4)

CLOCK

OSCILLATOR

GPIO/

AUX ADC

PLL

I2C/SPI

SLAVE

SPI/I2C*

BCLK_IN3 TO BCLK_IN0/

LRCLK_IN3 TO LRCLK_IN0

(INPUT CLOCK PAIRS)

CLKOUT

SDATA_IN3 TO SDATA_IN0

(48-CHANNEL

DIGITAL AUDIO

INPUTS)

SDATA_OUT3 TO SDATA_OUT0

(48-CHANNEL

DIGITAL AUDIO

OUTPUTS)

REGULATOR

ADAU1450

PLLFILT

BCLK_OUT3 TO BCLK_OUT0

LRCLK_OUT3 TO LRCLK_OUT0

(OUTPUT CLOCK PAIRS)

TEMPERATURE

SENSOR

THD_P

VDRIVE

THD_M

I2C/SPI

MASTER

SPI/I2C*

DIGITAL

MIC INPUT

SERIAL DATA

INPUT PORTS

(×4)

SERIAL DATA

OUTPUT PORTS

(×4)

DEJITTER AND

CLOCK GENERATOR

*SPI/I2C INCLUDES THE FOLLOWING PIN FUNCTIONS: SS_M, MOSI_M, SCL_M, SCLK_M, SDA_M, MISO_M, MISO, SDA,

SCLK, SCL, MOSI, ADDR1, SS, AND ADDR0 PINS.

INPUT AUDIO

ROUTING MATRIX

OUTPUT AUDIO

ROUTING MATRIX

147.456MHz

PROGRAMMABLE AUDIO

PROCESSING CORE

RAM, ROM, WATCHDOG,

MEMORY PARITY CHECK

Figure 2.

Rev. C | Page 5 of 180

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