Datasheet

Maxim Integrated │ 2
MAX98090 Ultra-Low Power Stereo Audio Codec
www.maximintegrated.com
General Description ............................................................................ 1
Features and Benefits .......................................................................... 1
Simplified Block Diagram........................................................................ 1
Functional Diagram ............................................................................ 9
Absolute Maximum Ratings ..................................................................... 10
Package Thermal Characteristics ................................................................ 10
Electrical Characteristics ....................................................................... 10
Digital Filter Specifications...................................................................... 20
Digital Input/Output Characteristics ............................................................... 24
Input Clock Characteristics ..................................................................... 26
Digital Audio Interface Timing Characteristics....................................................... 27
I
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C Timing Characteristics ...................................................................... 29
Digital Microphone Timing Characteristics ......................................................... 30
Quiescent Power Consumption .................................................................. 31
Typical Operating Characteristics ................................................................ 37
Bump/Pin Configurations ....................................................................... 64
Bump/Pin Descriptions......................................................................... 66
Detailed Description........................................................................... 68
Device I
2
C Register Map ....................................................................... 68
Software Reset............................................................................... 76
Power and Performance Management ............................................................ 77
Device Performance Configuration..............................................................77
Device Enable Configuration ..................................................................78
Analog Audio Input Configuration ................................................................ 81
Analog Microphone Inputs ....................................................................82
Analog Microphone Preamplifier and PGA .....................................................83
Analog Microphone Bias Voltage.............................................................84
Digital Microphone Inputs .....................................................................84
Digital Microphone Clock Configuration .......................................................84
Digital Microphone Frequency Compensation...................................................86
Analog Line Inputs ..........................................................................89
Analog Line Input Mixers ...................................................................89
Analog Line Input PGAs ...................................................................90
Analog Input PGA to Analog Output Mixer........................................................92
Analog Full-Scale Direct to ADC Mixer Inputs .....................................................92
Audio Record Path............................................................................ 93
Analog-to-Digital Converter (ADC) ..............................................................94
ADC Functional Configuration ...............................................................94
TABLE OF CONTENTS