DA7400 datasheet(4/135 Pages) DIALOG

4 / 135 page

DA7400

High Performance Stereo Codec

Final

Datasheet

Revision 3.0

03-Jul-2020

CFR0011-120-00

4 of 135

11.6 Digital to Analog Converter ................................................................................................. 46

11.7 Headphone Amplifiers......................................................................................................... 46

11.8 Headphone Charge Pump .................................................................................................. 46

12 Digital Audio Interface ................................................................................................................ 47

12.1 Introduction ......................................................................................................................... 47

12.2 Features .............................................................................................................................. 47

12.3 Block Diagram ..................................................................................................................... 47

12.3.1

Block Architecture................................................................................................ 47

12.3.1.1

Sample Rate Converter ................................................................... 47

12.4 DAI Functional Description ................................................................................................. 48

12.4.1

Master or Slave Mode.......................................................................................... 48

12.4.2

DAI Channels....................................................................................................... 49

12.4.2.1

I2S Format........................................................................................ 49

12.4.2.2

DSP Format ..................................................................................... 49

12.4.2.3

Left Justified Format ........................................................................ 49

12.4.2.4

Right Justified Format...................................................................... 50

12.4.3

Time Division Multiplexing Mode ......................................................................... 50

12.5 Sample Rate Converter....................................................................................................... 52

13 Digital Microphones Interface .................................................................................................... 53

13.1 Introduction ......................................................................................................................... 53

13.2 Features .............................................................................................................................. 53

13.3 Block Diagram ..................................................................................................................... 53

13.4 Block Architecture ............................................................................................................... 53

13.5 Physical Interface................................................................................................................ 53

13.5.1

Sampling DMIC Data ........................................................................................... 53

13.6 DMIC Router ....................................................................................................................... 54

14 Signal Generator ......................................................................................................................... 55

14.1 Introduction ......................................................................................................................... 55

14.2 Block Diagram ..................................................................................................................... 55

14.3 Block Architecture ............................................................................................................... 55

14.3.1

Tone Generator ................................................................................................... 55

14.3.2

Noise Generator .................................................................................................. 55

15 Programming ............................................................................................................................... 56

15.1 Overview ............................................................................................................................. 56

15.1.1

Set Switching ....................................................................................................... 56

15.1.1.1

Set Switch Operation ....................................................................... 56

15.1.2

Programming Model ............................................................................................ 57

15.1.2.1

Programming Model 1: SET0 for STANDBY and SET1 for

ACTIVE ............................................................................................ 57

15.1.2.2

Programming Model 2: Flexible ....................................................... 57

15.1.3

Default Values ..................................................................................................... 57

15.2 Sequencer ........................................................................................................................... 57

15.2.1

Set Programming................................................................................................. 58

15.2.1.1

Path Setup ....................................................................................... 58

15.2.2

Shared Sequencer Registers .............................................................................. 58

15.2.3

Sequencer Status Monitoring .............................................................................. 59

15.3 Clocking .............................................................................................................................. 59

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