General Description

The MAX14627/MAX14628 provide a simple solution for detecting the insertion and managing the operation of a 3.5mm stereo headset with a microphone. These devices integrate all circuitry needed to detect SEND/END button press events and generate required microphone bias voltages, and are fully compatible with Windows Mobile 7.

Benefits and Features

♦ Versatile Jack Detection and Control

    ◇ MODE Three-State Microphone Bias Control

    ◇ MIC Switch Ground Detection (MAX14627)

    ◇ MIC Switch Open and Ground Detection (MAX14628)

♦ Compatible with Windows Mobile 7 and Google Android

    ◇ Microphone Button Press Detection

♦ High-Performance MIC Bias and Power Savings

    ◇ No Pop-Up Noises

    ◇ Ultra-Low Noise, High-PSRR MIC Bias

    ◇ Low-Power MIC Idle Mode

    ◇ Automatic Ultra-Low-Power Mode When Microphone Is Disabled

♦ PCB Space and Cost Savings

    ◇ Integrated ±15kV ESD Protection (HBM) on DETIN and MIC Input Terminals

    ◇ Small 8-Pin (2mm x 2mm) TDFN Package

Applications

    Cell Phones

    Portable Media Players

    Tablet/Laptop PCs