SCHS463
May 2025
CD3268A
,
CD3269A
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
Timing Requirements
6
Parameter Measurement Information
6.1
eN-MIC Microphone Integrated Noise Measurement
6.2
Current Measurements
6.3
MICPWR Output Voltage Measurement
6.4
Tone Mode Threshold Measurements
6.5
Impedance Measurements
6.6
Tone Mode Output Measurements
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Tone Mode Start-up Timing
7.3.2
Authentication
7.3.3
Shunt Regulator
7.3.4
Power-on-reset
7.4
Device Functional Modes
7.4.1
Button Mode
7.4.2
Tone Mode
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Device Support
9.1.1
Third-Party Products Disclaimer
9.1.2
Development Support
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
Data Sheet
CD326x Audio Interface Transmitter for Specially Enabled Headsets