DA7218 datasheet(6/198 Pages) RENESAS

6 / 198 page

DA7218

Ultra-Low Power Stereo Codec

Datasheet

Revision 3.4

24-Dec-2021

CFR0011-120-00

6 of 197

11 Package Information ................................................................................................................. 183

12 External Components ............................................................................................................... 184

13 Ordering Information ................................................................................................................ 185

Appendix A Applications Information ........................................................................................... 186

A.1

Codec Initialization ............................................................................................................ 186

A.2

Automatic Level Control Calibration.................................................................................. 186

Appendix B Components................................................................................................................ 187

B.1

Audio Inputs ...................................................................................................................... 187

B.2

Microphone Bias ............................................................................................................... 188

B.3

Audio Outputs ................................................................................................................... 188

B.4

Headphone Charge Pump ................................................................................................ 189

B.5

Digital Interfaces ............................................................................................................... 189

B.6

References ........................................................................................................................ 191

B.7

Supplies ............................................................................................................................ 192

B.8

Ground .............................................................................................................................. 192

B.9

Capacitor Selection ........................................................................................................... 193

Appendix C PCB Layout Guidelines.............................................................................................. 194

C.1

Layout and Schematic Support......................................................................................... 194

C.2

General Recommendations .............................................................................................. 195

Revision History .............................................................................................................................. 196

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