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IoT device sensor chip Realmagic RM1101A designed for metal plate distance detection and calibration

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IoT device sensor chip Realmagic RM1101A designed for metal plate distance detection and calibration

Interface : -

Operating Temperature : -40℃~+85℃

Sensing Range : -

Voltage - Supply : 2.4V~5.5V

Module : No

Type : I2C

Description : I2C DFN-8L(2x2) Proximity Sensors RoHS

Mfr. Part # : RM1101A

Model Number : RM1101A

Package : DFN-8L(2x2)

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Product Description

The RM1101A is a high-precision ear-in+piezoelectric sensing detection chip, designed for IoT hardware devices such as smart wearables. It offers ultra-high sensitivity and ultra-low power consumption, capable of detecting the distance between a metal plate and an object. The chip quantifies this distance using a high-performance ADC and employs internal proximity detection algorithms to determine the object's distance. Upon reaching a predefined threshold, the RM1101A outputs a direct synchronous level or an event-encoded pulse waveform. Its self-calibration circuit eliminates fixed distance errors from the sensor, and configurable registers allow for adjustments and calibration based on different sensor structures and operating environments, enabling high performance and low power consumption tailored to user needs.

Application Scope

Various consumer products

Product Attributes

Brand:
Product Name: RM1101A +
Version: V1.1

Technical Specifications

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Absolute Maximum Ratings
Supply Voltage	VDD	-0.5		5.5	V
Pull-up Voltage	VPULL	-0.5		5.5	V
Input Voltage (non-supply PINS)	VIN	-0.5		VDD+0.3	V
Input Current (non-supply PINS)	IIN	-10		10	mA
Operating Junction Temperature	TJCT	-40		125
Reflow Soldering Temperature	TRE			260
Storage Temperature	TSTOR	-50		150
Recommended Operating Conditions
Supply Voltage	VDD	2.4		5.5	V
Ambient Temperature Range		-40		85
ESD Level
ESD Human Body Model	HBM@ANSI/ESDA/JEDEC JS-001		5000		V
ESD Charged Device Model	CDM@JEDEC specification JESD22-C01		250		V
Electrical Characteristics
Scan Cycle		2	50	200	ms	Programmable
Input Leakage Current			1		nA
Current Consumption (Full Power)			1		mA
Current Consumption (Scanning Mode)			10		uA	ODR=20Hz
Input High Voltage (SCL, SDA)		0.7xVIO			V
Input Low Voltage (SCL, SDA)		0.3 x VIO			V
Input High Current				-1	uA	VIN=3V
Input Low Current				1	uA	VIN=0V
Output Low Voltage (Open Drain Output - SDA)				+0.3x VIO	V	ISINK=-3mA
Output High Leakage Current		0.1		1	uA	VOUT=3V
Power-on Reset (Shutdown Level)		1.3		1.6	V	-40 to +85
Power-on Reset (Power-on Level)		1.5		1.8	V

2311271016_Realmagic-RM1101A_C19269290.pdf

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