Products
Pyroelectric Sensors
Application:
Security productsProduct characteristics:
High-precision AD signal processing;Description
The GDA223-F digital pyroelectric sensor integrates the sensitive element and signal processing chip of the traditional pyroelectric sensor. The sensitive element and IC chip are integrated and packaged inside the sensor shield. The sensitive element senses the infrared signal generated by the movement of the human body and transmits it to the high-precision digital intelligent processing chip for processing in the form of differential input. After the signal processing is completed, the sensor directly outputs a digital signal for easy use.
Specification
Limit parameters
| Parameter | Symbol | Min. | Max. | Unit | Remarks |
| Supply voltage | VDD | 0.3 | 5.5 | V | 25℃ |
| Output voltage | VOUT | VSS-0.3 | VDD+0.3 | V | 25℃ |
| Storage temperature | TST | -40 | ﹢125 | ℃ |
Electrical parameters (unless otherwise specified: T=25℃, VDD=3.0V)
| Parameter | Symbol | Min. | Typical Value | Max. | Unit | Remarks |
| Working conditions | ||||||
| Operating voltage | VDD | 2.2 | 3.0 | 5.0 | V | Power supply mode |
| Operating current | IDD | 8.0 | 10 | 15 | uA | VDD=3V, no load |
| Operating temperature | TOPR | -20 | ﹢70 | ℃ | ||
| Output Pins(REL) | ||||||
| Maximum output drive current | IREL | 10 | mA | VDD=5V | ||
| REL terminal outputs high level | VOH | 2.7 | V | VDD=3V, IOH=10mA | ||
| REL terminal outputs low level | VOL | 0.3 | V | |||
| Blocking time | 2 | S | ||||
| Delay time | ONTIME | 2 | 3600 | S | 16-step adjustment (non-linear) | |
| Oscillators and filters | ||||||
| Low pass filter cutoff frequency | FIFE | 7 | Hz | |||
| High pass filter cutoff frequency | FHPE | 0.4 | Hz | |||
Internal Block Diagram
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