GW Instek GFG-3015 - Manual (Page 39)

GFG-3015 p.35
KHz/Vrm s
KHz/Vrm s
KHz/Vrm s
1) Press in sequence to choose suitable
main output frequency for corresponding “VCF Frequency variation
Range”.
2) Input about DC 3.3V to “ VCF input BNC connector”.
3) You will get about 10kHz Sine signal from Main Output connector.
Note: 1. It won’t make any change on execution and result by taking different step
sequence.
2. If need to change difference frequency variation range in order to get
maximum variation (more than 100 times) at the same range, it is to be
suggested to set the main frequency on the top of each frequency
range.
6.17 THE GCV Output Function
The GFG-3015 provides the function of Generate control Voltage (GCV). User
can get a voltage from 0.2V to 2V from the instrument and the voltage changes
following the different main output frequency setting. In other words, if change
the setting of the main frequency, the voltage got from GCV output BNC
connector will be changed.
Basically, If user set any main frequency then It will get a relative voltage from
instrument. But that just appear in same “Frequency Range”. Because whole
frequency range (0.01Hz ~ 15MHz) of GFG-3015 are composed of 8 frequency
range (The detail is as below). So the GCV output voltage (0.2 to 2V) just appear
on each same frequency range.
Setting Frequency Range GCV Output Voltage
15.0000MHz ~ 1.5001MHz 2 ~ 0.2V
1.50000MHz ~ 150.01kHz 2 ~ 0.2V
150.000kHz ~ 15.001kHz 2 ~ 0.2V
15.0000kHz ~ 1.5001kHz 2 ~ 0.2V
1.50000kHz ~ 150.01Hz 2 ~ 0.2V
150.00Hz ~ 15.01Hz 2 ~ 0.2V
15.00Hz ~ 1.51Hz 2 ~ 0.2V
1.50Hz ~ 0.01Hz 2 ~ 0.2V
Example of the Setup of GCV
To set the following conditions:
Get 2V from GCV output BNC connector.
Procedure:
Press in sequence.
You will get about 2V from GCV output BNC connector.
Also, you can get 2V from another frequency ranges with the same
procedure as above description by setting different frequency value.
Please refer to the following:
1) Press in sequence.
FREQ 5 1
FREQ 5 1 0
FREQ 5 1