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EM7068
时间:2019-04-22 15:52 来源:未知 作者:总编辑 点击:

Description

EM7068 is a low-power I2C interface moduleincludes Heart Rate Sensor(HRS) and internal LED Current Drivers with Green and IR LED. It is designed for applications of Heart Beat Ratedetection esp. such as smartwatch etc. Heart Rate Sensor is designed to monitor heart rate by optical detection. A 16-bit ADC detects the result constantly with adjustable gain and resolution. 

Heart Rate Sensor in pulse mode is as a proximity sensor with rejection of ambient light noise. In order to removing component variations and eliminate offset caused by IR reflection, 2 registers were specially defined for compensation and high dynamic range of detection.


Features

Heart-Rate Sensors(HRS) and SpO2 Sensor built-in one Red LED of 650nm wavelength and one IR

LED of 940nm wavelength

50Hz/60Hz Flicker Noise Rejection

Temperature Compensation

Higher Sensitivity of Proximity Sensing

HRS and SpO2 Sensor in continuous mode with higher detection rate

HRS in pulse mode with Ambient Light Rejection

HRS detect rates is up to 1000/s

2048 Steps Programmable LED current driver for flexibility and part-to-part calibration

16bits ADC of Heart Rate Sensor

Offset register adjustment for compensation of DC noise

Programmable Interrupt modes

Low Average Operation Power consumption

Output Type: I2C Bus (HRS2) up to 400K Hz

Operation Voltage 2.5V ~ 3.6V

Logic Interface Voltage VBUS=1.8V or VBUS=VDD

Minimum External Components

Package: (4.0mmX2.4mmX1.35mm)

RoHS package


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