Digital Pyroelectric Infrared Sensor RDA773
Principle Introduction:
Digital PIR sensor RDA773, is an integrated design of sensitive element and signal processing chip, packaged sensitive element and IC chip into sensor shield. Sensitive element transfer the human movement signal to high-precision digital chip for data processing. Then the sensor gives digital signal for easy using.
Applications :
Digital PIR Motion Sensor is widely used in:
Security product
Human body induction toys
Human body induction lamps, and switches
Industrial automation control
Smart home
IOT terminals
Intelligent appliance
Technical parameters :
| Parameter | Symbol | Min | Typical | Max | Unit | Note |
| Working condition | ||||||
| Voltage | VDD | 2.7 | 3 | 3.6 | V | |
| Current | ICC | 12 | 15 | 20 | uA | |
| Sensitivity | VSENS | 110 | 530 | uV | adjustable | |
| Temperature | WST | -20 | 85 | ℃ | ||
| Input enable | ||||||
| High voltage | VIH | 80 | %VDD | |||
| Low voltage | VIL | 20 | %VDD | |||
| Current | II | -1 | 1 | uA | ||
| Output | ||||||
| Low current | IOL | 10 | mA | |||
| High current | IOH | -10 | mA | |||
| Block time | 2.3 | S | ||||
| Delay time | ONTIME | 2 | 4194 | S | adjustable | |
| Input adjustment (sensitivity/delay time) | ||||||
| Voltage input range | 0 | VDD | V | 0V-1/4VDD | ||
| Input bias current | -1 | 1 | uA | |||
| Oscillators and filters | ||||||
| Low filter cut-off frequency | 7 | Hz | ||||
| High filter cut-off frequency | 0.44 | Hz | ||||
| Chip oscillator frequency | Fclk | 64 | KHz | |||
