DrWhoF
Advanced Member level 1
I would like to replace non-available part UAA4000 with a microcontroller to generate Pulse-Position-Modulation.
The circuit is rather complicated and it uses 922 keypad decoder, 4066 switches, some transistors and HC154 – all to control the inputs of the UAA4000.
My plan is to use simple switches (pull-up to Vcc and switch to GND), I need only 10 of them, and to program a microcontroller to generate coded information (PPM) as if it was done by the UAA4000.
Any suggestion?
The circuit is rather complicated and it uses 922 keypad decoder, 4066 switches, some transistors and HC154 – all to control the inputs of the UAA4000.
My plan is to use simple switches (pull-up to Vcc and switch to GND), I need only 10 of them, and to program a microcontroller to generate coded information (PPM) as if it was done by the UAA4000.
Any suggestion?