Continue to Site

Welcome to

Welcome to our site! is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.


Not open for further replies.


You can use a digital approach by means of Xicor's digital pots, X9311, X9312, etc. These are very cool devices that holds values in an eeprom inside it. And very easy to control it. You could make a mechanical or optic device that send pulses to Xicor's pot.

i use a mouse
and change the 5 byte pkts to serial data on a stack or two

for controll via an ad8403-100k four 100k log pots
serial controlled
and as the pic has eprom
then is ok

any way it has turned into a full 45 gb dual mp3 player with slide and auto speed adjust and

incorperates midi interface and serial upload
to disk

so its getting there
now on 4 ft / 6 ft breadboard
i looked at those chips
but they dont have independant power rail auto control
and also no noise floor adjust on the fly

<font size=-1>[ This Message was edited by: SIMBOX on 2001-05-20 00:24 ]</font>

I have used these devices on a project of a serial controlled instrumentation amplifier and worked well.Very low noise and no need of separate power rails, as long as you keep the signals inside the GND and VCC span.

Not open for further replies.

Part and Inventory Search

Welcome to