TYHX Manuals

TYHX HRS3300 Optical Heart Rate Sensor Design Guide

This document provides detailed design guidelines for integrating the TYHX HRS3300 optical heart rate sensor. It covers installation structure, application recommendations, schematic design, and PCB layout considerations. The sensor uses integrated LED, sensor, and digital interface circuitry for optimized optical alignment and isolation. It is designed for wearable applications such as smartwatches and fitness trackers, with specific guidance on cover plate thickness, air gap, and isolation band dimensions to ensure accurate PPG signal acquisition.

The guide also addresses power considerations, including LED driving methods and voltage requirements, and discusses signal characteristics such as baseline variations and motion interference. It includes practical tips for optimizing performance in different environments and with different skin types or placement locations (e.g., wrist vs. fingertip). This manual is written in Chinese.

Covers: Installation Structure Guide · Application Recommendations · Schematic Design and PCB Layout Notes · Power and Performance Balance · PPG Signal Characteristics