MT8870 DTMF Decoder Module
Description:
MT8870 DTMF Decoder Module is a versatile and efficient digital signal processing module used to decode Dual-Tone Multi-Frequency (DTMF) signals. DTMF signals are typically generated by pressing the keys on a telephone keypad, and the MT8870 is widely used in various applications, such as remote control systems, telephone line interface systems, and automated systems where DTMF signal detection is required.
Features:
1. DTMF Signal Decoding
2. High Accuracy and Reliability
3. Low Power Consumption
4. Easy Integration
5. Output Interface
6. Noise Immunity
7. Adjustable Sensitivity
8. Onboard Oscillator
9. Compact Design
10. Wide Application Range
Diagram:
Specifications:
| DTMF Decoding Capability | Decodes 16 standard DTMF symbols |
| Low frequencies | 697 Hz, 770 Hz, 852 Hz, 941 Hz. |
| High frequencies | 1209 Hz, 1336 Hz, 1477 Hz, 1633 Hz |
| Voltage | 4.5V to 5.5V |
| Current Consumption | <30 mA |
| Response Time | 100 ms to 200 ms |
| Output Interface | binary logic output |
| Operating Temperature | 0°C to 70°C. |
| Interface | 6-pin interface |
| Size | 4 cm x 3 cm |
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