Tektronix PFG 5105, Инструкция по эксплуатации

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Operating Instructions
®
MODE KEYS
These buttons select the output mode. The CONT,
TRIG, GATE, BURST and SYNT modes are mutually
exclusive; the key LED lights to indicate the selected
mode.
CONT
TRIG
GATE
BURST
AM
FM
SYNT
Generates a continuous output.
Generates . one cycle of the selected
waveform for each trigger received. Re­
fer to the TRIG KEYS description.
When this key is pressed, the instrument
outputs complete cycles as long as the
trigger source is asserted.
When this key is pressed, the instrument
outputs the number of cycles selected
by N BURST, for each trigger received.
Uses the signal connected to the AM
IN connector to amplitude-modulate the
output signal.
Uses a signal applied to the VCO/FM
IN connector to control the output fre­
quency, allowing FM modulation. FM
cannot be used with the SYNT mode.
For Option 02 instruments only. When
this key is pressed, the instrument out­
puts a continuous waveform that is fre­
quency-locked to an internal quartz crys­
tal. Display allows 4.5 digit resolution.
(J)
DATA KEYS
The DATA keypad is used to enter numeric data.
Some keys are dual function (refer to the SWEEP
key description). Using the MHzN-µs key, the kHz/mV­
ms key, or the Hz-s key allows the user to scale the
input. A decimal point key and minus key are also
included. The ENTER key is used to terminate an
entry.
NOTE
If the function or parameter is selected, and no
data is entered, the ENTER key will terminate
the selection with no change to the value of
the function or parameter.
2-8
®
INCREMENT KEYS
Increments (up-arrow key) or decrements (down­
arrow key) the value of the selected parameter. Step
size is set by the INCR SIZE parameter key. To use
these keys to change a parameter value, press the
parameter key and the INCREMENT up- or down­
arrow key.
NOTE
The PFG 5105/5505 is a digitally controlled
analog pulse/function generator. Monotonicity of
the increment/decrement function is not guaran­
teed, and in fact, an increment of
a
parameter
can cause a decrement in the output. Example:
DELAY is decremented from 84 ns to 83 ns and
the actual delay is increased from 84 ns to
84.5 ns. The accuracy of the parameter will
always be in spec.
®
SETUP KEYS
These keys are used to save or recall front panel
settings.
STORE
Used with the DATA keypad to store the
present front panel settings in the set­
tings memory, except for INCR SIZE.
The current settings for the SPCL func­
tions Range Lock and Frequency Lock
are stored. To store the present settings,
press STORE, enter the number of the
settings buffer (1-99) that you want to
store the settings in, and press ENTER.
Settings buffer number
o
contains the
power-up front panel settings; the set­
tings in this buffer cannot be changed.
Refer to Table 2-1 for a list of the
power-on settings.
NOTE
/NCR SIZE and partially entered functions or
parameters are not stored by the STORE func­
tion.
RECALL Used with the DATA keypad to recall
previously stored front panel settings. To
recall stored settings, press RECALL,
enter the number of the desired settings
buffer, press ENTER.
PFG 5105/5505 Instruction Manual