Chapter 3 Specifications
Introduction
Operating Guide
3-5
The following graphs may also be used to compute errors for Period Measurements. To find the Period error (
∆
P), calculate the frequency of the
input signal (
) and find the frequency error (
∆
F) from the chart. Then, calculate the period error as:
Measurement Specifications
Frequency, Period
Channel 1 Range:
0.1 Hz to 225 MHz
4.44 ns to 10 s
Channel 2 Range:
Option 015
100 Mhz to 1.5 Ghz
0.67 ns to 10 ns
Option 030
100 MHz to 3 GHz
0.33 ns to 10 ns
Option 050
200 MHz to 5 GHz
0.2 ns to 5 ns
Option 124
200 MHz to 12.4 GHz
80 ps to 5 ns
(Period 2 selectable only via the GPIB interface)
For Automatic or External Arming:
(and signals < 100 Hz using Timed Arming)
For Time or Digits Arming:
LSD Displayed:
RMS Resolution:
t
res
: 650 ps typical
5
For Automatic Arming:
where N = 1 for Ch1 Frequency < 1 MHz
4 for Ch1 Frequency > 1 MHz
128 for Ch2
LSD Displayed:
RMS Resolution:
t
res
: 500 ps typical
5
t
jitter
: 50 ps typical
5
Number of Samples =
Gate Time x Frequency
(Frequency < 200 kHz)
Gate Time x 200,000
(Frequency > 200 kHz)
Systematic Uncertainty:
t
acc
: 350 ps typical
1.25 ns worst case
Trigger: Default setting is Auto Trigger at 50%
Systematic Uncertainty:
t
acc
: 100 ps typical
300 ps worst case
Trigger: Default setting is Auto Trigger at 50%
t
re s
Gate Time
----------------------------
Frequency
or
Period
×
t
re s
2
2
Trigger Error
2
×
(
)
+
Gate Time
-----------------------------------------------------------------------
Frequency
or
Period
×
Gate Time
N
Frequency
----------------------------
=
2 2
t
re s
×
Gate Time
Number or Samples
×
--------------------------------------------------------------------------------------------
t
jitt e r
Gate Time
----------------------------
+
Frequency
or
Period
×
4
t
re s
2
2
Trigger Error
2
×
(
)
+
×
Gate Time
Number or Samples
×
--------------------------------------------------------------------------------------------
t
jitt e r
Gate Time
----------------------------
+
Frequency
or
Period
×
Time Base Error
±
t
a c c
Gate Time
----------------------
±
Frequency
or
Period
×
Time Base Error
±
t
a c c
Gate Time
----------------------
±
Frequency
or
Period
×
F
1
P
----
=
P
∆
F
∆
F
-------
P
×
=
Содержание 53181A
Страница 2: ...NOTES...
Страница 13: ...Contents Operating Guide ix Measurement Arming and Processing 3 16 General Information 3 17 Index...
Страница 14: ...Contents x Operating Guide...
Страница 24: ...Preface xx Operating Guide...
Страница 33: ...1 Getting Started...
Страница 68: ...Chapter 1 Getting Started Making Measurements 1 36 Operating Guide 1...
Страница 69: ...2 Operating Your Frequency Counter Operator s Reference...
Страница 143: ...3 Specifications...
Страница 160: ...Chapter 3 Specifications Introduction 3 18 Operating Guide...
