S
stuart ferguson
Guest
Hello World...
Question on the Exar 2206 function generator chip...
I am having problems getting the XR2206 to sweep with a ramp voltage.
I have the XR2206 configured as per fig10. in the datasheet, and I
want to sweep from around 975kHz to 1025kHz. ( centre frequency 1MHz).
I am sweeping with ramp signal at 33Hz, +/- 2 volts centred on zero,
but when i apply the ramp voltage to resistor at pin 7, the ramp is
offset by about 1 volt and is distorted. Is this normal? I am only
getting a couple of MHz of sweep, way lower than my goal...
What am I doing wrong? Any ideas
Question on the Exar 2206 function generator chip...
I am having problems getting the XR2206 to sweep with a ramp voltage.
I have the XR2206 configured as per fig10. in the datasheet, and I
want to sweep from around 975kHz to 1025kHz. ( centre frequency 1MHz).
I am sweeping with ramp signal at 33Hz, +/- 2 volts centred on zero,
but when i apply the ramp voltage to resistor at pin 7, the ramp is
offset by about 1 volt and is distorted. Is this normal? I am only
getting a couple of MHz of sweep, way lower than my goal...
What am I doing wrong? Any ideas