Velleman DVM20FGC Mode D'emploi

1. Introduction & Features
Thank you for buying the DVM20FGC ! Please read the manual carefully before bringing this
device into service.
This versatile and user-friendly function generator is supplied with a plastic case. The device
can produce 7 different waveforms : sine, square, triangle, positive & negative pulse, positive &
negative ramp.
The device is equipped with a function where the frequency is controlled via the input tension
(VCF or "voltage-controlled frequency"). The DVM20FGC is also equipped with a TTL sync.
output. The waveform symmetry is adjustable and can be inverted. DC level can be adjusted
continuously. The frequency counter can display both the internal and external frequency.
2. Specifications
Frequency Range
Waveform
Rise and Fall Time (square waveform)
Sine Waveform
Distortion
Frequency Response
TTL/CMOS Output
TTL Low Level
TTL High Level
CMOS Low Level
CMOS High Level
Rise Time
Output
Impedance
Amplitude
Attenuation
DC Offset
Symmetry Adjustment Range
VCF Input
Input Voltage
Max. VCF Ratio
Input Signal
Frequency Counter
Measuring Range
Input Impedance
Sensitivity
Max. Input
Input Attenuation
Measurement Error
Power Source
Ambient Conditions
Temperature
DVM20FGC
DVM20FGC – Function Generator
0.1Hz~2MHz in 7 steps
sine, square, triangle, positive & negative pulse,
positive & negative ramp
< 100ns
< 1% between 10Hz~100KHz
< ± 0.5dB between 0.1Hz~100KHz, < ± 1dB between
100Hz~2MHz
< 0.4V
> 3.5V
< 0.5V
5V to 14V, continually adjustable
< 100ns
50Ω ± 10%
> 20Vp-p (no load)
20dB, 40dB
from 0 to ± 10V, adjustable continually
90 : 10 ~ 10 : 90
-5V to 0V ± 10%
1000 : 1
DC ~ 1KHz
1Hz ~ 10MHz
≥ 1MΩ / 20pF
100mVrms
150V (AC + DC) (with attenuator)
20dB
≤ 3 x 10
-5
± 1 word
220V ± 10% / 50Hz ± 2Hz, 10VA
0 – 40° C
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VELLEMAN