Avtech 14169 Manuale di istruzioni - Pagina 15

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AVTECH
AVMP-2
PULSER
AVTECH
AV-141C1
AMPLIFIER
+15V DC
POWER
SUPPLY
The recommended test set-up is shown above.
The Avtech AVMP-2 series can be used to generate a +9.5V pulse at 10 kHz, with 100
ns pulse width. The rise time will be 100 ps. The 30 dB attenuator will reduce this signal
to 300 mV.
The AV-141C1-PS amplifier will amplify the signal to 3V. The output rise time should be
800 ps or less. (Note that if a slower input signal is used, the observed output signal will
be correspondingly slower.)
A 20 dB attenuator should be placed at the input of the oscilloscope, to avoid over-
driving the input. Most high-bandwidth sampling oscilloscopes do not tolerate inputs of
more than ±1V.
The bandwidth capability of components and instruments used to display the pulse
generator output signal (attenuators, cables, connectors, etc.) should exceed 2 GHz.

BASIC TEST ARRANGEMENT

SYNC OUTPUT
MAIN OUTPUT
IN
CONNECTOR
OUT
CONNECTOR
ALL CABLES: 50 OHM COAXIAL
+9.5V PULSE, 10 kHz,
100 ns PULSE WIDTH
100 ps RISE TIME
30 dB
ATTENUATOR
20 dB
ATTENUATOR
SAMPLING
OSCILLOSCOPE
50 OHM INPUT
TRIG
15