Overview
Digital PIR sensor RDA-226, 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.
Key Features
- High-precision AD signal process
- Differential signal input mode, anti-interference ability
- Sensitivity, delay time, and light adjustment function
- Enable pin controls the sensor output
- Low working voltage and power consumption
- Digital TTL signal output
Applications
- Security product
- Human body induction toys
- Human body induction lamps, and switches
- Industrial automation control
- Smart home
- IOT terminals
- Intelligent appliance
Technical Specifications
| Parameter | Symbol | Min | Typical | Max | Unit | Note |
| Working condition | ||||||
| Voltage | VDD | 2.7 | 3 | 3.3 | V | |
| Current | ICC | 12 | 15 | 20 | uA | |
| Sensitivity | VSENS | 110 | 530 | uV | adjustable | |
| Temperature | WST | -20 | 85 | °C | ||
| Inputenable | ||||||
| High voltage | VIH | 80 | %VDD | |||
| Low voltage | VIL | 20 | %VDD | |||
| Current | II | -1 | 1 | uA | ||
| Output | ||||||
| Lowcurrent | IOL | -10 | mA | |||
| Highcurrent | IOH | 10 | mA | |||
| Blocktime | 2.3 | S | ||||
| Delaytime | ONTIME | 2.3 | 4793 | S | adjustable | |
| Inputadjustment (sensitivity/delay time) | ||||||
| Voltage input range | 0 | VDD | V | 0V-1/4VDD | ||
| Input bias current | -1 | 1 | uA | |||
| Oscillators and filters | ||||||
| Lowfilter cut-off frequency | 7 | Hz | ||||
| High filter cut-off frequency | 0.44 | Hz | ||||
| Chip oscillator frequency | Fclk | 64 | KHz |
