This IC circuit utilizes the principle of digital memory. The digital signal and program which cannot be changed is programmed into the IC at the factory.
This is referred to as a Read Only Memory (“ROM”) technology.
This Kit utilizes a ROM which has been programmed with a pattern which simulates that of a “Frog” call.
The output of the ROM is then passed into an Amplifying Transistor which in turn drives the output Speaker.
- Power supply : 3VDC
- Electric current consumption : 90mA (max.)
- Speaker 8 Ohms 0.25 W.
- IC board dimension : 31.0mm x 6mm (1.22 x 1.40 inch)