Need help, level shifting

[amdx]

I have a 1 volt 5hz triangle wave setting on 4vdc, I need
to lower the 4vdc to 1vdc. (This is chip #1 output)
I'm driving pin 7 of a XR2206, you adjust frequency by sinking
between 1ua and 3ma from this pin. (This is chip #2 input)
Chip #1 is driving a 4.7k resitor with a 220kohm to ground.
Chip #2 Pin 7 is connected to the junction of the 4.7k and 220kohm.
I want to avoid a negative supply.
Thanks, Mike

 

[Jim Thompson]

I have a 1 volt 5hz triangle wave setting on 4vdc, I need
to lower the 4vdc to 1vdc. (This is chip #1 output)
I'm driving pin 7 of a XR2206, you adjust frequency by sinking
between 1ua and 3ma from this pin. (This is chip #2 input)
Chip #1 is driving a 4.7k resitor with a 220kohm to ground.
Chip #2 Pin 7 is connected to the junction of the 4.7k and 220kohm.
I want to avoid a negative supply.
Thanks, Mike

And what is chip #1?

Maybe post a schematic? A link, or on ABSE?

...Jim Thompson

 

[amdx]

And what is chip #1?

Maybe post a schematic? A link, or on ABSE?

...Jim Thompson

Chip #1 is also an XR2206 pin 2 is a triangle output.

 

[Jim Thompson]

Chip #1 is also an XR2206 pin 2 is a triangle output.

Post a schematic if you want help. I don't have time to reconstruct
one from verbiage.

...Jim Thompson

 

[amdx]

Post a schematic if you want help. I don't have time to reconstruct
one from verbiage.

...Jim Thompson
--

Thanks Jim,
I found a solution which led to better one.
Mike