SX9324 Datasheet PDF | Semtech Corporation

Semtech Corporation SX9324

The SX9324 is a capacitive Specific Absorption Rate (SAR) controller. The SX9324 can use two sensor inputs coupled to its smart engine for SAR to accurately discriminate between an inanimate object and human body. The resulting detection is used in portable electronic devices to reduce and control radio-frequency (RF) emission power in the presence of a human body, enabling significant performance advantages for manufacturers of electronic devices with electro-magnetic radiation sources to meet stringent emission regulations' criteria and Specific Absorption Rate (SAR) standards.

Part No.	SX9324
Datasheet	SX9324 Download
Manufacturer	Semtech Corporation
Description	Smart Proximity Sensor
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GENERAL DESCRIPTION

Operating directly from an input supply voltage of 1.7 to 2V, the SX9324 outputs its data via I2C serial bus. The I2C serial communication bus port is compatible with 1.8V host control to report body detection/proximity and to facilitate parameter settings adjustment. Upon proximity detection, the NIRQ output asserts, enabling the user to either determine the relative proximity distance, or simply obtain an indication of detection. The SX9324 includes an on-chip auto-calibration controller that regularly performs sensitivity adjustments to maintain peak performance over a wide variation of temperature, humidity and noise environments, providing simplified product development and enhanced performance. KEY PRODUCT

FEATURES

 ~1.8V Input Supply Voltage  Up to 3 Capacitive Sensor Inputs  Patented On-Chip Smart Engine For SAR  Capacitance Resolution down to 0.004fF  Capacitance Offset Compensation up to 200pF  Advanced Temperature Compensation  Automatic Calibratio...