Philips PM 5132 Instruction Manual page 17

14
3.2.
3.2.1.
3.2.2.
3.2.3.
Setting the voltage at socket OUTPUT
only is fed to the output.
For 60 dB all three buttons have to be pressed.
Note: The output amplifier could be overdriven due to adding signal and DC offset voltage. To
avoid limiting, the peak value of the open-circuit output voltage must not exceed +15 V
(step attenuator set to 0 dB).
Setting the frequency
The PM 5132 offers three control elements for setting the frequency:
— a range selector FREQUENCY Hz with seven ranges
— a dial with linear scale
—vernier FREQ OFFSET control
The output frequency is represented by the scale reading multiplied by the factor of the range selector
FREQUENCY Hz. In addition the frequency deviation set of the FREQ OFFSET control must be
accounted for.
Setting the wave form
The required wave form is selected by pressing the according pushbutton of the wave form selector.
lf the duty cycle shall be set to any value different to 50 %, the pushbutton DUTY CYCLE must be
pressed fo adjusting the duty cycle within 10 % and 90 % by means of the knob DUTY CYCLE.
At the TTL OUT socket a TTL signal is available, the frequency and duty cycle of which correspond to
the signal at the OUTPUT socket.