This depends on your version:
: It accepts an analog DTMF audio signal at its input pins ( mt8870 proteus lib 35
The MT8870 is a popular DTMF (Dual-Tone Multi-Frequency) decoder chip used in various applications, including telecommunications, robotics, and electronics projects. To facilitate the simulation and testing of circuits involving the MT8870, a Proteus library is available. Proteus is a widely used software for electronic circuit simulation and design. This depends on your version: : It accepts
: The simulation model uses the same pinout as the physical IC, making it directly compatible with standard DTMF circuit designs involving microcontrollers like Arduino. Required Instruments : For a successful simulation, you must use a DTMF Generator : The simulation model uses the same pinout
Connect a 3.579545 MHz crystal across these pins. In Proteus, you can often leave this disconnected as the model assumes the correct frequency.