GW Instek GFG-8217A - Specific Operational Modes

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.
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