GW Instek GFG-8200A Series - Manual (Page 11)

FUNCTION GENERATOR-SERIES
INSTRUCTION MANUAL
19
5-3.Pulse wave generation
(1) First press the key ( ) of Function 8 ; then select Range
7 ,
and rotate FREQ 13 , to set required frequency range.
(2) Connect output-terminal 22 to oscilloscope for observing output
signal.
(3) Pull out and rotate Duty k to adjust the width of pulse waveform.
(4) Adjust AMPL 12 knob to control pulse amplitude.
(5) Pull out AMPL 12 knob to get 20dB attenuation of output.
5-4.Ramp wave generation
(1) First press the key ( ) of Function 8 , then select Range
7 ,
rotate FEEQ 13 switch to set required frequency range.
(2) Connect output-terminal 22 to oscilloscope for observing output
signal.
(3) Pull out and rotate DUTYk to adjust the slope of ramp waveform.
(4) Adjust AMPL 12 knob to control output amplitude of ramp
waveform.
(5) Pull out AMPL 12 knob to obtain 20dB attenuation of output.
5-5.TTL/CMOS signal output
(1) First select Range 7 , rotate FREQ 13 to set required frequency
range.
(2) Connect BNC connector of TTL/CMOS 20 to oscilloscope or to other
experiment circuit for observing output signal.
(3) At this moment, output is square waveform fixing to TTL level; suits
for general TTL integrated circuit.
(4) If square waveform of CMOS level is required, can pull out CMOS
10 knob to adjust voltage level.
FUNCTION GENERATOR-SERIES
INSTRUCTION MANUAL
20
5-6.Variation of external voltage-controlled frequency
This mode of operation allows the user to adjust the frequency of the
function generator with an external DC control Voltage. It also provides
an easy way for your adjustment.
(1) Select Function 8 first, then select Range 7 , rotate FREQ 13 to
set required frequency range.
(2) Connect external control voltage (0 ~ 10V) to the VCF 21 connector
via a suitable lead, and generate signal from Output 22 .
(3) Other adjustments, such as AMPL 12 switch can change amplitude of
signal, or get attenuation; adjust Offset 11 for DC level, rotate Duty k
switch can change output signal of pulse or ramp waveform etc.
5-7.Auto Sweep
(1) First select the required waveform by pressing Function 8 button,
then select required frequency range by pressing range 7 push
button.
(2) Connect output terminal 22 to oscilloscope for observing output
signal.
(3) Rotate frequency 13 to determine the upper limit frequency.
(4) Pull out frequency 13 to perform auto-sweep operation.
(5) Rotate SWEEP/TIME 14 and SWEEP/RATE 16 to adjust sweep
time and rate.
(6) Pull out (press) LIN/LOG 14 to obtain LOG (LIN) sweep mode.
Note: The sweep width can only be adjusted during the
sweep cycle and it can not be stopped.