[volt-nuts] 32-Bit PWM divider

[Andreas Jahn]

> Hello Andreas,

>
> The noise measurements that I made were done with a HP3457 in
> "high-resolution" mode (7-1/2 digits). The HP3457 was set to integrate 
> over
> 50 power line cycles. If I remember correct the noise that i measured was
> pretty much that of the reference divided down according to the pwm ratio.
>
> Best regards
> Ulrich Bangert
>

Hello,

so I guess that you measured the effective (rms) voltage noise in the AC 
range of the HP3457?
And this as broadband measurement (>= 1 MHz bandwidth of the HP) ?

Whereas I measured the 0.1 .. 10Hz  uVpp noise with an Oscilloscope.
If this is true the two values cannot be compared.

Best regards

Andreas