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Document Number: DS-000121
Revision: 1.3
TABLE OF CONTENTS
General Description ..................................................................................................................................................................... 1
Applications ................................................................................................................................................................................. 1
Features ....................................................................................................................................................................................... 1
Functional Block Diagram ............................................................................................................................................................ 1
Ordering Information ................................................................................................................................................................... 1
Table of Contents .................................................................................................................................................................................... 2
Specifications .......................................................................................................................................................................................... 4
Table 1. Electrical Characteristics ................................................................................................................................................ 4
Table 2. TDM Digital INPUT/Output ............................................................................................................................................ 5
Table 3. Serial Data Port Timing Specification ............................................................................................................................. 5
Timing Diagram ............................................................................................................................................................................ 5
Absolute Maximum Ratings .................................................................................................................................................................... 6
Table 4. Absolute Maximum Ratings ........................................................................................................................................... 6
ESD Caution ................................................................................................................................................................................. 6
Soldering Profile........................................................................................................................................................................... 7
Table 5. Recommended Soldering Profile .................................................................................................................................... 7
Pin Configurations And Function Descriptions ....................................................................................................................................... 8
Table 6. Pin Function Descriptions ............................................................................................................................................... 8
Typical Performance Characteristics ....................................................................................................................................................... 9
Theory of Operation ............................................................................................................................................................................. 10
Startup and Power Management .............................................................................................................................................. 10
Startup ............................................................................................................................................................................ 10
Table 7. Startup time ...................................................................................................................................................... 10
Standby Mode ................................................................................................................................................................ 10
Soft Unmute ................................................................................................................................................................... 10
Synchronizing Microphones ...................................................................................................................................................... 11
TDM Data Interface ................................................................................................................................................................... 11
Data Output Format ....................................................................................................................................................... 11
Digital Microphone Sensitivity ................................................................................................................................................... 13
Digital Filter Characteristics ....................................................................................................................................................... 13
High-Pass Filter ............................................................................................................................................................... 13
Low-Pass Decimation Filter ............................................................................................................................................ 13
Applications Information ...................................................................................................................................................................... 14
SD Output Drive Strength .......................................................................................................................................................... 14
Design Recommendations .............................................................................................................................................. 14
Power Supply Decoupling .......................................................................................................................................................... 14
Supporting Documents ......................................................................................................................................................................... 15
