Pendulum CNT-91 - Page 140

Introduction
Only values with tolerances or limits are
guaranteed data. Values without tolerances are
informative data, without guarantee.
Measurement
Functions
Refer to page 8-24 for uncertainty information.
Inputs A and B can be swapped in all modes
except Rise Time and Fall Time.
Display: All measurements are displayed with
a large main parameter value and smaller
auxiliary parameter values (with less
resolution). Some measurements are only
available as auxiliary parameters.
Frequency A, B, C
■ Range:
Input A:
0.002 Hz - 400 MHz
Input B:
0.002 Hz - 400 MHz
Input C:
0.3 - 27 GHz (CNT-90XL-27G)
0.3 - 40 GHz (CNT-90XL-40G)
0.3 - 46 GHz (CNT-90XL-46G)
0.3 - 60 GHz (CNT-90XL-60G)
Acquisition
Time:
25 ms in Auto (typ.)
Resolution:
12 digits/s
■ Display:
Inputs A & B Main
Parameter:
Frequency
Aux. Parameters:
Vmax, Vmin, Vp-p
Input C Main
Parameter:
Frequency
Aux. Parameter:
Power in dBm
Frequency Burst A, B
Frequency and PRF of repetitive burst signals
can be measured without external control
signal and with selectable start arming delay.
Functions:
Frequency in burst (Hz)
PRF (Hz)
Numberof cycles in burst
Range A, B:
See Frequency A, B
Min. Burst
Duration:
40 ns (80 ns > 160 MHz)
Min. No. of Pulses
in Burst:
3 (6 above 160 MHz)
PRF Range:
0.5 Hz - 1 MHz
Start Delay
Range:
10 ns - 2 s, resolution
10 ns
■ Display:
Main Parameter:
Frequency in burst
Aux. Parameters:
PRF & numberof cycles in
burst (Ch A or Ch B only)
Period A, B, C Average
■ Range:
Input A, B:
3.3 ns - 500 s
Input C (27 GHz):
37 ps - 3.3 ns
(40 GHz):
25 ps - 3.3 ns
(46 GHz):
22 ps - 3.3 ns
(60 GHz):
17 ps - 3.3 ns
Acquisition:
Auto or Manual
(within ±40 MHz)
Acquisition Time:
25 ms in Auto (typ.)
Resolution:
12 digits/s
■ Display:
Input A, B
Main Parameter:
Period
Aux. Parameters:
Vmax, Vmin, V p-p
Input C
Main Parameter:
Period
Aux. Parameter:
Power in dBm
Period A, B Single
Range A, B:
3.3 ns - 1000 s
Resolution:
100 ps
■ Display:
Main Parameter:
Period
Aux. Parameters:
V max, V min, V p-
p
Ratio A/B, B/A, C/A, C/B
Range:
10
-9
to
10
11
(one-pass
measurem., values < 1 with
reduced resolution)
Freq Range A,B:
100 Hz to 400 MHz
Freq Range C:
Full input C range
■ Display:
Main Parameter:
Ratio
Aux. Parameters:
Freq 1, Freq 2
Time Interval A to B, B to A, A
to A, B to B
Range (normal
calculation):
0 ns to +10
6
s
Range (smart
calculation):
-10
6
to +10
6
s
Resolution
Single Shot:
100 ps
Input Frequency:
Up to 160 MHz
Min. Pulse Width:
1.6 ns
Smart Calculation:
Smart Time Int. w. 4 time
stamps (2
consecutive Trig A
plus 2
consecutive Trig B) to
determine sign (A before B
or A after B)
Specifications
USER MANUAL ● CNT 9x Series ● Rev.22 February 2020
8-17
Note: Some frequencies may not be
acquired correctly with Auto Acquisition.
If so, switch to Manual Acquisition
instead.