Datasheet

Low-Power, Stereo Audio Codec
with FlexSound Technology
Jack Detection.............................................................................114
Jack Insertion
...........................................................................114
Accessory Button Detection
...............................................................114
Jack Removal
...........................................................................114
Battery Measurement
.......................................................................116
Device Status
.............................................................................117
Device Revision
............................................................................118
I
2
C Serial Interface .........................................................................118
Bit Transfer
.............................................................................118
START and STOP Conditions
...............................................................118
Early STOP Conditions
....................................................................118
Slave Address
..........................................................................119
Acknowledge
...........................................................................119
Write Data Format
.......................................................................119
Read Data Format
.......................................................................120
Applications Information
....................................................................... 121
Typical Operating Circuits
....................................................................121
Filterless Class D Operation
..................................................................123
RF Susceptibility
...........................................................................123
Startup/Shutdown Sequencing
................................................................123
Component Selection
.......................................................................124
Optional Ferrite Bead Filter
................................................................124
Input Capacitor
..........................................................................124
Charge-Pump Capacitor Selection
..........................................................124
Charge-Pump Flying Capacitor
.............................................................125
Charge-Pump Holding Capacitors
...........................................................125
Unused Pins
..............................................................................125
Recommended PCB Routing
.................................................................126
Supply Bypassing, Layout, and Grounding
......................................................126
WLP Applications Information
.................................................................127
Ordering Information
......................................................................... 127
Package Information
.......................................................................... 128
Revision History
............................................................................. 131
TABLE OF CONTENTS (continued)
Maxim Integrated
4
MAX98089