Overview
The product is a type of intelligent PIR sensor which integrates digital circuit and sensitive element in a hermetically sealed package. It interference directlly with up two conventionao PIR sensors via a high impedance differential input. The PIR signal is converted to a digital value on chip . All signal processing is performed digitally.
Feature
★ Digital signal processing,no drift and aging
★ High power supply rejection ratio,anti-radio frequency
interference(mobile phone,WiFi ,etc.)
★ A second-order Butterworth bandpass filter with built-in
infrared sensor to shield input interference at other
frequencies.
★ Good stability and effective suppression of repeated
malfunctions
★ Low power consumption and simple application circuit
★ Ontime 2s
Datasheet
1.Absolute Maximum Ratings
Electrical characteristics(beyond those listed below may cause permanent damage to the device. Exposure to absolute maximum ratings may affect the device reliability. )
Parameter | Symbol | Min | Max | Unit | Remarks |
Operating Temp | TST | -30 | 70 | ℃ | |
Current into any pin | Into | -100 | 100 | mA | |
Storage Temp | TST | -40 | 80 | ℃ |
2. Operating Conditions (T=25°C, Vdd=3V，unless stated otherwise)
Parameter | Symbol | Min | Type | Max | Unit | Remarks |
Regular voltage | VDD | 2.2 | 3 | 3.7 | V | |
Supply current | IDD | 9 | 9.5 | 11 | μA | |
Sensitivity threshold | VSENS | 90 | μV | |||
Detective Wavelength | λ | 5 | 14 | um | ||
Outputs REL | ||||||
IOL | 10 | mA | VOL<1V | |||
Output current high | IOH | -10 | mA | VOH>(VDD-1V) | ||
Low REL output locking time | TOL | 2 | s | Non-adjustable | ||
High REL output delay time | TOH | 2 | s | |||
Oscillator and Filter | ||||||
LPF cutoff frequency | 7 | Hz | ||||
HPF cutoff frequency | 0.44 | Hz | ||||
On chip oscillator frequency | FCLK | 64 | kHz | |||
Tel.: +86-755-82594732
E-mail: sales.sz@nysenba.com
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