CS548 - Signal Generator

Hi,
While reading the datasheet of CS548, I couldn't find the maximum amplitude of the internal signal generator. From the software, we can set a 10Vpp voltage amplitude, but in the real case, it is ~6.534mV, at which point the amplitude starts to clip the output voltage.
We tried Termination(open, 75, 50, 25 Ohm), but nothing can help.

Additionally, software is listed last on your website (5.05.34).
Also, checked on the other scope, and the results are the same.
Do you have some advice for a Signal generator?

Thanks.
Dejan

Hi, While reading the datasheet of CS548, I couldn't find the maximum amplitude of the internal signal generator. From the software, we can set a 10Vpp voltage amplitude, but in the real case, it is ~6.534mV, at which point the amplitude starts to clip the output voltage. We tried Termination(open, 75, 50, 25 Ohm), but nothing can help. Additionally, software is listed last on your website (5.05.34). Also, checked on the other scope, and the results are the same. Do you have some advice for a Signal generator? Thanks. Dejan

Hello Dejan,
Yes the maximum Vp-p is about 6.5V.
If you need more our CS1070 will deliver 32.5Vp-p.

If you set the impedance to 50 Ohm, the signal generator will double it's output to try and achieve the set Vp-p. For example with a 50 Ohm load, and you set the Sig Gen to 1Vp-p, it will actually output 2Vp-p. But it is limited by the maximum output. In addition any offset will also be limited by the absolute output range of about +3.25V to -3.25V.

If you connect a CS1070 power amp, and set the Use CS1070 to Use CS1070 50 Ohm, then the amplitude sets what comes out of the CS1070. The coax termination rules still apply.

This is pretty much what our System Spec says.

Bart

Hello Dejan, Yes the maximum Vp-p is about 6.5V. If you need more our CS1070 will deliver 32.5Vp-p. If you set the impedance to 50 Ohm, the signal generator will double it's output to try and achieve the set Vp-p. For example with a 50 Ohm load, and you set the Sig Gen to 1Vp-p, it will actually output 2Vp-p. But it is limited by the maximum output. In addition any offset will also be limited by the absolute output range of about +3.25V to -3.25V. If you connect a CS1070 power amp, and set the Use CS1070 to Use CS1070 50 Ohm, then the amplitude sets what comes out of the CS1070. The coax termination rules still apply. This is pretty much what our System Spec says. Bart

Hi Bart,

Thanks for an instant replay!

Now it's clearer.

Dejan

Hi Bart, Thanks for an instant replay! Now it's clearer. Dejan