I've just finished the board for my new 6-channel audio amplifier, with microcontroller. The amplifier is controlled via infra-red and some buttons and has a 4-line LCD.
I also used LM1973 - 3 channel digital controlled volume circuit.
Here are the schematics and pcb's layers.
http://www.microjean.go.ro/sch.gif - schematic
http://www.microjean.go.ro/top.gif - top layer
http://www.microjean.go.ro/bottom.gif - bottom layer
http://www.microjean.go.ro/silk.gif - silk-screen
I also used LM1973 - 3 channel digital controlled volume circuit.
Here are the schematics and pcb's layers.
http://www.microjean.go.ro/sch.gif - schematic
http://www.microjean.go.ro/top.gif - top layer
http://www.microjean.go.ro/bottom.gif - bottom layer
http://www.microjean.go.ro/silk.gif - silk-screen
I've made a lot of changes. I'll post the updates soon...maybe monday.
It's stil in a project fase because I want to think a lot about it... rush is baaad!
There's a new processor, temperature sensor, PWM controlled fan, LCD, keyboard, infrared and now I'm working on the opto-mecanical volume control (almost like the mecanical ball-mouse technology).
It's stil in a project fase because I want to think a lot about it... rush is baaad!
There's a new processor, temperature sensor, PWM controlled fan, LCD, keyboard, infrared and now I'm working on the opto-mecanical volume control (almost like the mecanical ball-mouse technology).
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