B&K Precision 4003A - Manual - Manual (Page 14)

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4. Display will show the frequency and Hz / kHz LED’s will light depending on the
frequency.
5.4 VOLTAGE CONTROLLED FREQUENCY OPERATION (model 4003A only)
The 4003A can be operated as a voltage controlled generator by using an external control voltage
applied to the VCF input.
1. Select the desired frequency range and waveform.
2. Set the starting frequency with the variable control. Apply a positive DC voltage to the
VCF input to decrease the frequency. A voltage from 0 to +10 V will cause the frequency to
decrease by a factor of around 100. For example, if the starting frequency is 100 kHz,
applying +10 V will change the output frequency to 1 kHz.
5.5 FUNCTION GENERATOR APPLICATIONS GUIDEBOOK
B&K Precision offers a “Guidebook to Function Generators”, which describes numerous
applications for this instrument, including hook-up details. It also includes a glossary of function
generator terminology and an explanation of function generator circuit operation. It may be
downloaded free of charge on our website,
www.bkprecision.com .