CD3268A datasheet(2/35 Pages) TI2

2 / 35 page

Table of Contents

1 Features............................................................................1

2 Applications..................................................................... 1

3 Description.......................................................................1

4 Pin Configuration and Functions...................................3

5 Specifications.................................................................. 4

5.1 Absolute Maximum Ratings........................................ 4

5.2 ESD Ratings............................................................... 4

5.3 Recommended Operating Conditions.........................4

5.4 Thermal Information....................................................4

5.5 Electrical Characteristics.............................................4

5.6 Timing Requirements..................................................6

6 Parameter Measurement Information............................ 7

6.1 eN-MIC Microphone Integrated Noise Measurement.... 7

6.2 Current Measurements............................................... 7

6.3 MICPWR Output Voltage Measurement..................... 9

6.4 Tone Mode Threshold Measurements........................ 9

6.5 Impedance Measurements....................................... 10

6.6 Tone Mode Output Measurements............................12

7 Detailed Description......................................................14

7.1 Overview................................................................... 14

7.2 Functional Block Diagram......................................... 14

7.3 Feature Description...................................................15

7.4 Device Functional Modes..........................................17

8 Application and Implementation.................................. 20

8.1 Application Information............................................. 20

8.2 Typical Application.................................................... 20

8.3 Power Supply Recommendations.............................22

8.4 Layout....................................................................... 22

9 Device and Documentation Support............................24

9.1 Device Support......................................................... 24

9.2 Receiving Notification of Documentation Updates....24

9.3 Support Resources................................................... 24

9.4 Trademarks...............................................................24

9.5 Electrostatic Discharge Caution................................24

9.6 Glossary....................................................................24

10 Revision History.......................................................... 24

11 Mechanical, Packaging, and Orderable

Information.................................................................... 25

CD3268A, CD3269A

SCHS463 – MAY 2025

www.ti.com

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