TB 9-6625-2274-40
11. Low Edge Amplitude Risetime
a. Performance Check
(1) Connect TI OUTPUT to digitizing oscilloscope using X10 attenuator. Connect
TRIGGER OUTPUT to digitizing oscilloscope TRIG.
(2) Position TI controls as listed in (a) through (i) below:
(a) Press AMPLITUDE MODE AMPL MODE EDGE pushbutton.
(b) Press AMPLITUDE MODE EDGE POLARITY pushbutton.
p
(c) Press AMPLITUDE MODE NUMBER OF DIV (MULTIPLIER)
ushbutton to display X 1 DIV.
pushbutton to highlight 1 MHz.
(d) Press AMPLITUDE MODE FREQ
(e) Press TRIGGER ON pushbutton on.
(f) Press TRIGGER NORM pushbutton on.
(g) Adjust UNITS/DIV dial to display .5 V/D.
(h) Press VARIABLE ON pushbutton off.
(i) Press OUTPUT ON pushbutton on.
(3) Set digitizing oscilloscope probe attenuation to 10 and acquire signal. Perform
risetime measurement technique.
Digitizing oscilloscope will indicate a risetime
measurement of 1.3 ns.
(4) Press OUTPUT ON pushbutton off and disconnect equipment setup.
b. Adjustments. See paragraph 6 d above.
12. High Edge Amplitude Risetime and Aberrations
a. Performance Check
(1) Connect TI OUTPUT to digitizing oscilloscope using X10 attenuator. Connect
TI TRIGGER OUTPUT to digitizing oscilloscope TRIG.
(2) Press pushbuttons as listed in (a) through (e) below:
AMPLITUDE MODE AMPL MODE EDGE.
(a)
AMPLITUDE MODE EDGE POLARITY .
(b)
to highlight 100 kHz.
AMPLITUDE MODE FREQ
(c)
VARIABLE ON off.
(d)
OUTPUT ON on.
(e)
(3) Adjust UNIT/DIV dial to display 2 V/D and press AMPLITUDE MODE
pushbutton to display X 1 DIV.
NUMBER OF DIVISIONS (MULTIPLIER)
(4) Acquire signal using digitizing oscilloscope and perform risetime measurement
technique. Digitizing oscilloscope will indicate a risetime measurement of 100 ns.
(5) Set digitizing oscilloscope sensitivity to 10 mV/D and sweep speed to 200 ns/D.
Adjust offset until top of waveform is centered on crt graticule.
(6) Digitizing oscilloscope will indicate a waveform with an aberration of <l division.
(7) Press TI OUTPUT ON pushbutton off and disconnect equipment setup.
b. Adjustments. See paragraph 6 d above.
