BodyEMS team integrated ECG sensor to new version EMS device, we call it EMS power box.

Decription of ECG sensor

The ECG sensor Vital Signs Parameter Detection Chip is a sensing chip system (SoC) specifically

designed for bioelectrical signals.

It integrates a high‐precision EEG/ECG/EMG/PPG analog front‐end and a powerful RISC‐V

microcontroller (MCU).

The SoC incorporates advanced ECG/PPG feature extraction capabilities (HeartAPP) and

comprehensive health monitoring algorithms (including cuffless blood pressure, cardiovascular

function metrics, anxiety index, fatigue index, blood oxygen levels, EEG‐based focus/relaxation

assessment, etc.), making it widely applicable to various portable health monitoring devices

requiring multi‐parameter and high‐performance capabilities.

Its versatile peripheral interfaces enable the SoC to expand with multiple external sensors.

The robust processing power of the RISC‐V core MCU and its memory resources facilitate the

integration of different wireless transceiver protocol stacks (e.g., Bluetooth Low Energy (BLE) or

Near Field Communication (NFC)) for transmitting measurement data.

Product Specifications

Operating Voltage Range: 2.5V – 5V

Operating Temperature Range: ‐40°C to +125°C

Low‐Power Modes: Sleep mode, Stop mode, Standby mode

Filters: Low‐pass/High‐pass/Band‐stop filters

Memory: 256KB‐Flash, 64KB‐ROM, 64KB‐RAM

Digital Communication Interfaces: UART, SPI, QSPI, I2C, I2S

RISC‐V Core

2 pipeline stages

Supports branch prediction and prefetch

RV32I base integer instruction set (/E/M/A/C extensions)

32‐bit Instruction Local Memory (ILM) and Data Local Memory (DLM)

33‐

ECG/EMG/EEG Signal Processing

Independent ECG acquisition with a frequency up to 32 kHz

Programmable gain range for INA: 1 – 100

Input noise: <2.5 μVrms (BW= 0.1–100 Hz, Gain = 6)

AC/DC lead‐off detection

Supports Right Leg Drive (RLD)

24‐bit ADC analog front‐end with programmable amplifiers

PPG Transmitter

Four LEDs configurable in common‐anode or H‐bridge configurations

8‐bit programmable LED drive current (up to 50 mA)

Programmable LED timing control and duty cycle adjustment

Supports 2 green LEDs for optimal heart rate monitoring

Supports red and infrared LEDs for SpO2 measurement

Supports infrared LED‐based proximity sensing

Key Terms Consistency:

Technical abbreviations (e.g., ADC, SPI, I2C) are retained for clarity.

Units follow international standards (e.g., kHz, μVrms).

Industry‐specific terms (e.g., "lead‐off detection," "H‐bridge") are accurately translated.