
Maxim Integrated
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