MAX14579AE
searchIcon

MAX14579AE

Low-Power Headset Detectors with SEND/END Button Support

Show More showmore-icon

Complete Audio Headset Jack Detection Solution

Part Details
Features
  • 3.5mm Jack Insertion Detection
  • Simple Interface: One Input/Two Open-Drain Outputs
  • Low-Power Microphone Mode
  • Low-Noise, High-PSRR Microphone Bias Generator
  • Click-and-Pop Suppression
  • High-ESD Protection on MIC and DETIN Inputs
    • ±15kV Human Body Model (HBM)
Additional Details
show more Icon

The MAX14579E/MAX14579AE 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 required to detect SEND/END button press events and generate required microphone bias voltages.

The devices are managed with only three GPIOs from the host controller to select between call mode and standby mode, and monitor the SEND/END and jack insertion status. In call mode, the low-noise LDO is enabled to provide DC bias to the externally preamplified microphone. In standby mode, microphone low-power pulsing is enabled to reduce supply current while waiting for a SEND/END button press event. Two open-drain outputs signal the host controller when an insertion/removal or SEND/END button press event occurs.

The MAX14579E/MAX14579AE manage jack insertion detection by monitoring a 3.5mm socket with a normally open jack insertion switch.

The devices are available in an 8-pin TDFN package, and are fully specified over the -40°C to +85°C extended temperature range.

Applications

  • Cell Phones
  • e-Readers
  • Tablet PCs

close icon
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX14579EEVKIT

Evaluation Kit for the MAX14579E and MAX14579AE

zoom

MAX14579EEVKIT

Evaluation Kit for the MAX14579E and MAX14579AE

Evaluation Kit for the MAX14579E and MAX14579AE

Features and Benefits

  • USB Powered or External Power Supplies
  • Low-Power Microphone Mode
  • Low-Noise Microphone Bias Generator
  • Configurable for Headsets with Normally Open Detection Switches
  • Headset SEND/END Detection
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX14579E evaluation kit (EV kit) provides a proven design to evaluate the MAX14579E headset detection IC. The EV kit is designed to demonstrate the IC's headset insertion detection, SEND/END detection, and microphone low-power features. The EV kit requires a single power source using an active USB port.

The EV kit PCB comes with a MAX14579EETA in an 8-pin TDFN package with an exposed pad installed and can also be used to evaluate the MAX14579AE.

Applications

  • Cell Phones
  • e-Readers
  • Tablet PCs

Recently Viewed