Philips PM 6650 Operating Manual page 5

Counter/timer 512 mhz/1ns
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Ill. TECHNICAL DATA
Properties expressed in numerical values with statement of tolerances are guaranteed. Numerical
values without
tolerances are intended for information purposes
only and indicate the properties of an average instrument. The
numerical values hold good for the nominal mains voltage.
A. MEASUREMENTS
Frequency
Range
Mode
Gate times
Accuracy
Inputs
Display
Period
Range
Frequency counted
Resolution
Accuracy
Input
Display
Period Average
Range
Frequency counted
Periods averaged (N)
Resolution
Accuracy
Input
Display
Time Interval
Range
Frequency counted
Resolution
Time interval repetition rate
Accuracy
Inputs
Display
DC... 512 MHz
normal. frequency or burst frequency
100 ns ... 100 s (in decade steps)
+1 count + time base accuracy
channel A (DC ... 160 MHz)
channel C (5 MHz .. . 512 MHz)
kHz, MHz and GHz, decimal point automatically positioned
DC... 10 MHz
100 MHz... 1 Hz (in decade steps)
10ns...18
+1 count + time base accuracy
= trigger error *
channel A
us, ms and s, decimal point automatically positioned
DC...10 MHz
100 MHz
1... 108 (in decade steps)
10 ns
N
+1 count + time base accuracy + trigger error */N
channel A
ns or us, decimal point automatically positioned
40 ns... 10? s (approx. 31 years)
100 MHz...
1 Hz (in decade steps)
10ns...1is
max. 10 MHz
+1 count + time base accuracy + trigger error **
Channels A and B; can be common or separate
us, ms and s, decimal point automatically positioned
* trigger error is
<+3
10°
for sine wave signals at specified sensitivity with signal to noise ratio of 240 dB
** trigger error is <
signal slope (V/ns) se

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