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MAX14627 - Low-Power Headset Detectors

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.

Key Features

  • an internal 2.2V LDO output, while the MAX14628 operates from a 3.1V to 5.5V voltage supply and features an internal 2.8V LDO output voltage. Both devices control jack insertion detection by monitoring a 3.5mm socket with a normally open jack insertion switch. Additionally, the MAX14628 features open microphone detection. The MAX14627/MAX14628 are available in an 8-pin TDFN package, and are fully specified over the -40NC to +85NC extended temperature range. Benefits and Features S Versatile Ja.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX1462 Low-Voltage / Low-Power / 16-Bit Smart ADC
MAX14626 High-Voltage Reverse-Input-Capable
MAX14628 Low-Power Headset Detectors
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-6310; Rev 0; 5/12 EVALUATION KIT AVAILABLE MAX14627/MAX14628 Low-Power Headset Detectors with SEND/END Button Support 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. The devices need 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.