Used a MCP4261 to generate a signal to control a analog joystick, seems its max current is too small, anyway can amplification it's signal?
Thanks.

 

The amplification would have to be double sided. Amplify on send, amplify on receive. Are you sure its the current? Maybe its the voltage, coding of the signal, connector or something else?

 

The amplification would have to be double sided. Amplify on send, amplify on receive. Are you sure its the current? Maybe its the voltage, coding of the signal, connector or something else?

here are the circuit and code, the pin6 and pin9 output wrong, p6 = 2.5 V. p9: 0-5V vary, why?



don't know how to upload the code.

 

What is the AB resistance value in each digi-pot?
What impedance do the pot wipers have to drive?

 

What is the AB resistance value in each digi-pot?
What impedance do the pot wipers have to drive?

the AB resistance value =10K;
impedance do the pot wipers have to drive, not sure yet, how to figure out it?

 

how to figure out it?

What do the wipers connect to (beyond the IC)?

 

I don't see pin 6 and pin 9 to be connected to anything. First if you are using Proteus always connect the pins. Second if you are using Proteus, they have a separate digital pull up resistor and digital pull down resistor, you can not use a normal one. Third, did you check the datasheet, if the voltage is floating that means there is no pull-up or pull-down resistor connected.