MT8870 DTMF Audio/Speech Decoding Telephone Module
Specifications:
- Main Chip: MT8870DS
- Operating Voltage: 5V
- Power Consumption: Max 500mW
- Operating Temperature: -40°C to +85°C
- Board Color: Blue
- Dimensions: 27mm × 25mm × 10mm
- Weight: 5g
- Estimated Delivery : Up to 4 business days
- Free Shipping & Returns : On all orders over $200
The MT8870 DTMF Decoder Module is designed for dual-tone multi-frequency (DTMF) signal processing, commonly used in touch-tone telephone systems. This module decodes incoming DTMF signals into binary-coded outputs, making it an essential component for telecommunication projects, remote control systems, and automation applications.
Built around the MT8870DS chip, this module separates high and low-frequency groups in DTMF signals and outputs the corresponding key values in a 4-bit binary format. It also features onboard LEDs to indicate signal status and an integrated audio input interface for direct connection to telecommunication lines or external audio sources.
Key Features:
- MT8870DS chip-based DTMF decoder for reliable signal processing.
- Onboard gain setting amplifier for enhanced signal clarity.
- Complete DTMF receiver, requiring no additional circuits.
- Onboard LEDs for easy monitoring of signal states.
- 5-channel interface for easy integration with microcontrollers.
- Adjustable guard time for flexible signal detection.
- Direct audio input via a 3.5mm jack for easy connectivity.
- Power-down and inhibit modes for optimized power management.
- *Decodes standard telephone keypad signals (0-9, , #) and additional control outputs (ABCD).
The MT8870 DTMF Decoder Module is an efficient and user-friendly solution for DTMF-based control systems and telecommunications projects. 📞
Reviews
There are no reviews yet.