The MT8870DE Integrated DTMF Receiver IC is a complete DTMF receiver IC that integrates band-split filters and digital decoding. Using switched capacitor filters and digital counting techniques, it detects and decodes all 16 DTMF tone pairs into a 4-bit code. With on-chip differential input amplifier, clock oscillator, and latched three-state bus interface, it reduces the need for external components, simplifying circuit design.
Specifications:
| Parameter | Value |
|---|---|
| Model | MT8870DE |
| IC Type | Decoder IC |
| Operating Voltage(VDD) | 5V |
| Mounting Type | DIP |
| Package/Case | DIP-18 |
| Operating Temperature (°C) | 40°C to +85°C |
Features:
- Complete DTMF receiver functionality
- Low power consumption
- Internal gain-setting amplifier
- Adjustable guard time
- Power-down and inhibit modes
- Backward compatible with earlier MT8870C versions
Package Includes:
- 1 x MT8870DE Integrated DTMF Receiver IC
Chakshu Hada –
DTMF receiver IC decoded keypad tones accurately in my final-year project.
Pankaj Meena –
Genuine DTMF decoder
Gajendra Rathore –
Great for communication projects
Ritesh Porwal –
Build quality was impressive, and this IC performed consistently during testing.