Select to use the CS1070.
If needed you can independently control the CS1070 power
enable state by clicking on this LED. Green is enabled. Red is disabled.
The application automatically turns the power on and off as required.
Vin
Is the required input voltage.
Iload
Is the estimated total current load of the UUT. It must be under 1A.
Sig Gen Amp
Use a value that results in a useful SNR >5, but as small as you can
manage. 0.5V is a good starting point. . You can also set Sweep
Amplitude to Auto. A target stimulus of 3mV is suitable.
PSU Output Impedance - used to measure the Output Impedance of
passive or powered Power Supplies and power planes. Uses a Shunt
Impedance measurement when using the CS701 or CS1070 50 ohm,
and a sense resistor when using the CS1070 1 ohm. Using the CS1070 1
ohm allows higher current testing, and returns both impedance and
phase.
Notes:
If the UUT is powered, the CS1070 output is automatically set to be a
sinking load, and the sine wave signal does not go above the UUT power
rail. If the UUT is not powered, the CS1070 will output a signal centered on
0V, unless a DC current is specified (+ve for below 0V, and -ve for above
0V, as it is a load current).
The CS701 output is not offset. You can manually offset it using the Sig Gen
Offset value. The maximum voltage rail value should be <3.5V.
Rref is the Signal Generator series impedance, including any external
resistors. If you are using coax, the maximum PSU Vout is 1.8V, or 3.5V
when using an oscilloscope probe.
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