Product Description
- This component is perfect for integrating dual-tone multi-frequency (DTMF) decoding into your project. The detection module interprets incoming tones and generates a coded output that can be connected to various microcontrollers.
- DTMF is commonly used in touch-tone devices, such as telephones. Each tone consists of a combination of two sine waves, creating a unique signal that can be transmitted or heard. When the module receives this signal, it decodes it and produces a binary output for use in other devices. The module also features onboard LEDs to indicate the state of the signal.
- The MT8870 Tone Decoder, developed by MITEL, is a widely used multi-frequency decode IC. It acts as a complete DTMF receiver, separating the incoming signal into high-frequency and low-frequency groups. The digital decoder then determines the key value and sends it out via four lines (Q1, Q2, Q3, Q4) in binary form.
Features
- Internal Gain setting amplifier
- Onboard LED, it is very convenient to check the output state.
- Adjustable Guard time
- Onboard 3.5mm input interface
- 5 Channel Interface
- On-board MT8870 frequency decoder chip
- Power-Down mode
- Inhibit Mode
- Onboard Audio input interface
- Onboard LED lights for output state indication Complete DTMF Receiver. Does not require external circuits or wiring, it can be inserted directly into the UNO/MEGA2560/DUE board to use.
- 12-Digital outputs decode mobile and fixed telephone keys (0-9, * #). Also, another 4 Digital output(ABCD) can use “DTMF Dial” for Software control.
Specifications:
| Main Chip | MT8870DS |
|---|---|
| Working voltage | 5V |
| Power Consumption | 500mW (MAX) |
| Type | MT 8870 DTMF Tone Decoding Module |
| Operating Temperature | -40-+85 °C |
| Board Colour | Blue |
| Dimension (LxWxH)mm | 27 x 25 x 10 |
| Weight | 5g |
Package Includes
Technical Specifications
| Model | MT8870 |
|---|---|
| SKU | AI0316 |
| Weight | 0.01 kg |
| Availability | In Stock |
Applications & Use Cases
The MT8870 DTMF Audio/Speech Decoding Telephone Module is a versatile audio amplifier module used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
- Integrating into a custom electronics project
- Learning and experimenting with circuits
- Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
Hitesh Nayak –
Good MT8870 DTMF Audio/Speech Decoding Telephone. Works as described. Packaging could be improved slightly.
Vansh Agarwal (verified owner) –
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Shivam Naidu (verified owner) –
Great MT8870 DTMF Audio/Speech Decoding Telephone at a fair price. Shipping was fast and product is genuine.
Kavya Deshpande (verified owner) –
Great MT8870 DTMF Audio/Speech Decoding Telephone at a fair price. Shipping was fast and product is genuine.
Kapil Patil (verified owner) –
Bought this MT8870 DTMF Audio/Speech Decoding Telephone after researching many options. Best decision! Works flawlessly.
Rakesh Krishnan (verified owner) –
Perfect MT8870 DTMF Audio/Speech Decoding Telephone. Works as expected. Packaging was secure and product arrived safely.
Shruti Hegde (verified owner) –
Great quality MT8870 DTMF Audio/Speech Decoding Telephone. Fast delivery from Zbotic. Highly recommended.
Sandeep Agarwal (verified owner) –
Very satisfied with this MT8870 DTMF Audio/Speech Decoding Telephone. My project is working perfectly now.
Pranav Solanki –
Excellent product! My college project is a success thanks to this MT8870 DTMF Audio/Speech Decoding Telephone from Zbotic.
Prateek Mehta (verified owner) –
Very satisfied with this MT8870 DTMF Audio/Speech Decoding Telephone. My project is working perfectly now.
Prateek Goyal (verified owner) –
Love this MT8870 DTMF Audio/Speech Decoding Telephone. Build quality is excellent. Will order more from Zbotic.
Anand Arora (verified owner) –
Great MT8870 DTMF Audio/Speech Decoding Telephone at a fair price. Shipping was fast and product is genuine.
Ojas Patil (verified owner) –
Excellent MT8870 DTMF Audio/Speech Decoding Telephone! Works perfectly as described. Very happy with this purchase.
Sonali Luthra (verified owner) –
Excellent MT8870 DTMF Audio/Speech Decoding Telephone! Works perfectly as described. Very happy with this purchase.
Diya Khanna (verified owner) –
Good MT8870 DTMF Audio/Speech Decoding Telephone. Works as described. Packaging could be improved slightly.
Arjun Saini (verified owner) –
Excellent product! My college project is a success thanks to this MT8870 DTMF Audio/Speech Decoding Telephone from Zbotic.
Ojas Bajaj (verified owner) –
Pretty good MT8870 DTMF Audio/Speech Decoding Telephone. Quality is reasonable for the price point.
Sandeep Modi (verified owner) –
Very satisfied with this MT8870 DTMF Audio/Speech Decoding Telephone. My project is working perfectly now.
Sunil Nair (verified owner) –
Outstanding quality! This MT8870 DTMF Audio/Speech Decoding Telephone exceeded my expectations. Great purchase.
Neeraj Reddy (verified owner) –
Pretty good MT8870 DTMF Audio/Speech Decoding Telephone. Quality is reasonable for the price point.
Harshit Mehta (verified owner) –
Outstanding quality! This MT8870 DTMF Audio/Speech Decoding Telephone exceeded my expectations. Great purchase.
Pranav Kamath –
Nice MT8870 DTMF Audio/Speech Decoding Telephone. Does the job well. Good value for money.
Anand Patel (verified owner) –
This MT8870 DTMF Audio/Speech Decoding Telephone is reliable and well-made. Recommended for electronics enthusiasts.
Meera Iyer (verified owner) –
Outstanding quality! This MT8870 DTMF Audio/Speech Decoding Telephone exceeded my expectations. Great purchase.
Sarthak Bose (verified owner) –
Excellent MT8870 DTMF Audio/Speech Decoding Telephone! Works perfectly as described. Very happy with this purchase.
Anjali Chauhan –
This MT8870 DTMF Audio/Speech Decoding Telephone is reliable and well-made. Recommended for electronics enthusiasts.