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SX9324 - Smart Proximity Sensor

Description

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.

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 Calibration  Ultra Low Power Consumption  Active Mode:  Doze Mode:  Sleep Mode: 22 uA 6 uA 1.75 uA  400kHz I2C Serial Interface  2 Sub-Addresses Selectable by Pin.  Programmable Interrupt or Real-Time Status pin  Two Reset Sources: POR, So.

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Datasheet Details

Part number SX9324
Manufacturer SEMTECH
File Size 0.99 MB
Description Smart Proximity Sensor
Datasheet download datasheet SX9324 Datasheet

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Full PDF Text Transcription

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SX9324 Ultra Low Power, Smart Proximity Sensor for SAR WIRELESS & SENSING GENERAL DESCRIPTION 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. Operating directly from an input supply voltage of 1.7 to 2V, the SX9324 outputs its data via I2C serial bus.
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