DTMF Audio Generator Module AE11A04 Dual Voice Encode Transmitter Board 5-24VDC for Communication Systems

Enhance your electronic projects with this versatile DTMF Generator Module, specially designed for seamless integration with dialing keyboards and MCU interfaces. This module enables your MCU or keyboard to generate 16 distinct dual-tone multi-frequency (DTMF) signals via Audio 1 and Audio 2 outputs, allowing reliable tone dialing communication for various applications. Key Features: · Wide Voltage Compatibility: Operates efficiently within a broad voltage range of 5V to 24V DC, providing flexible power options for diverse electronic systems. · Dual Audio Outputs: Equipped with two 3.5mm audio jacks, enabling simultaneous audio output for multiple devices or channels. · Multiple MCU Input Interfaces: Features 7 dedicated MCU input pins (5V, GND, D3, D2, D1, D0, STD) for easy connection and control by microcontroller units. · Low Power Consumption: Maintains a working current between 6mA to 8mA, ensuring energy-efficient operation without compromising performance. · Compact and Lightweight Design: Measuring only 63 x 40 x 13mm and weighing just 18g, this module is easy to integrate and handle in any project setup. · Convenient Power Port: Includes a standard 2.1 x 5.5mm female DC power socket for secure and straightforward power connections. Specifications: · Working Voltage: 5~24V DC · Working Current: 6~8mA · Power Port: 2.1 x 5.5mm Female DC Power Socket · Audio Ports: 2 x 3.5mm Audio Jacks · MCU Input Ports: 7-pin 2.54mm Pin Header (5V, GND, D3, D2, D1, D0, STD) · Size: 63 x 40 x 13mm (2.48 x 1.57 x 0.51 in) · Weight: 18g (0.63 oz) Package Includes: · 1 x DTMF Generator Module · 1 x 50cm Male-to-Male 3.5mm Audio Cable This DTMF Generator Module is an essential component for developers and hobbyists seeking reliable dual-tone signal generation with flexible voltage input and multiple interface options. Its compact size, dual audio outputs, and robust MCU compatibility make it ideal for telecommunication projects, remote controls, and custom MCU-based dialing applications.