Fluke Wavetek-Datron 395 - Filter; Frequency; Standard Waveform Frequency; Standard Waveform Period

4.4.4.3 Filter
The Model 395 contains three filters. The two eight pole, six-zero elliptic filters
provide sharp cutoffs at 20 MHz and 40 MHz. The two-pole Bessel filter provides a
less sharp cutoff at 10 MHz but a flatter overal1 response. "None" bypasses output
filtering.
Select output filters by cycling through the list using the knob, cursor keys, or F4.
20 MHz Elliptic filter.
40 MHz EUiptic filter.
10 MHz Bessel filter.
none - no filter.
4.4.5 FREQUENCY
Frequency programs the repetition rate for the selected arbitrary waveform, standard
waveform, or sequence.
4.4.5.1 Standard Waveform Frequency
The Model 395 allows the setting of the repetition rate in Frequency units or Period
units. See figure 4-29.
SOMHz
2MHz
10 MHz
Triangle
To program the frequency of a waveform, press F4, "freq" and use the knob or keypad
to program the frequency. Maximum frequency depends on the selected waveform:
Waveform Max. Freq. Resolution
Sine and Haversines 40 MHz 10 digits :s; 20 MHz
4 digits> 20 MHz
10 digits :s; 100 kHz
4 digits> 100 kHz
4 digits
10 digits
:s; 100 kHz
4 > 100kHz
Square
± Ramp /Sin (x)/x
STANDARDFREQUENCY
1.000000000 kHz
• freq
period
<>
Figure 4-29. Frequency - Standard Waveforms
4.4.5.2 Standard Waveform Period
20ns
500ns
100 ns
Square
± Ramps/Sin (x)/x
Triangle
To program the period
of a waveform, press F8, "period" and use the knob or keypad
to program the value. Minimum period depends on the selected waveform:
Waveform Min. Pero Resolution
Sine and Haversines 25 ns 10 digits ;::: 50 ns
4 digits < 50 ns
10 digits;::: 10 !ts
4 digits < 1O!tS
4 digits
10 digits;::: 10 !ts
4 digits
< 1O!tS
4-30 Front Panel Operation Reference
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