P916H Digital Intelligent Pyroelectric Infrared Sensor with big test angle digital PIR sensor

Advanced Features of the Low Power Digital Signal Processing System

Two-way Differential Sensor Input

The digital signal processing system features a two-way differential sensor input with very high impedance, allowing for precise and accurate measurements.

Built-in Bandpass Filter

Equipped with a second-order Butterworth bandpass filter, the system effectively shields input interference at other frequencies, ensuring reliable data processing.

Sensor Output Control

The system includes sensitivity, timing time, and illumination sensor Schmitt REL output for enhanced control and customization of sensor readings.

Adjustable Gain Control

With adjustable gain control, users can fine-tune the sensor input to meet specific requirements and optimize performance.

Real-time Data Processing

The system offers real-time data processing and analysis capabilities, enabling quick response times and efficient operation.

Energy-efficient Design

Designed for low voltage and low power consumption, the system operates instantly after startup and ensures extended battery life in portable applications.

Self-calibration and Diagnostics

Featuring built-in self-calibration and self-diagnostic features, the system offers reliable performance and easy maintenance.

Compact and Robust Construction

The compact and lightweight design of the system allows for easy integration into various systems, while its robust construction ensures durability in harsh environments.

Communication Protocol Compatibility

The system is compatible with various communication protocols, facilitating seamless data transfer and integration with existing systems.

By incorporating these advanced features, the low power digital signal processing system offers a reliable and efficient solution for a wide range of applications.

1. Maximum Ratings (Any electrical stress that exceeds the parameters in the table below may cause permanent damage to the device.)

2. Working conditions (T=25 °C, V DD = 3V, unless otherwise specified)

3. Output voltage waveform

Detection angle

Size angle bitmap（mm)

Application circuit

Best Practices for Ensuring Optimal Sensor Performance

Window Maintenance

To maintain the detection performance of the sensor, it is crucial to prevent any stains or dirt from accumulating on the window. Regular cleaning and upkeep will help ensure accurate readings.

Handling Lens with Care

The lens of the sensor is constructed from a delicate material, polyethylene. To avoid malfunction or performance degradation caused by deformation or damage, it is essential to handle the lens with care and avoid subjecting it to excessive pressure or impact.

Static Electricity Protection

Protecting the sensor from static electricity is vital to prevent damage. Ensure that static electricity of ±200V or higher is discharged before operation and avoid direct contact with the terminal by hand to prevent any potential harm.

Soldering Guidelines

When soldering wires, it is recommended to maintain the soldering iron temperature below 350°C and complete the soldering process within 3 seconds to prevent any adverse effects on performance. Avoid soldering through a solder bath to maintain optimal functionality.

Sensor Cleaning Precautions

Cleaning the sensor should be avoided as it may lead to the infiltration of cleaning liquids into the lens, resulting in performance deterioration. It is advisable to refrain from cleaning the sensor to preserve its functionality.

Shielded Cable Installation

For cable wiring, using shielded wires is recommended to minimize interference and ensure accurate sensor readings. Proper cable installation techniques will help mitigate external factors that could impact sensor performance.

By adhering to these best practices, you can uphold the efficiency and reliability of the sensor system, ensuring consistent and precise operation across various applications.