LSD Displayed:
SINGLE time interval measurement:
Average time interval measurements:
Averaged Number of Intervals N: measuring time/pulse
repetition time
Note: Input signals must be repetitive and asynchronous
with respect to the time base
Min Dead Time from Stop to Start: 250 ns
Timing Difference A-B Channels: 4 ns max
Totalize A
(totalize B via GPIB/ IEEE-488 only)
Range:
0 to I x 10
15
with indication of k or M (kilopulses
or Megapulses) the result is truncated if out of display
range
Frequency Range:
0 Hz to 12 MHz
Pulse Pair Resolution:
80 ns
LSD Displayed:
1 unit count (counts <10
9
); 5 x
counts/10
9
(counts
≥
10
9
)
Gated by B (A) Mode:
Event counting on input A (B)
during the duration of a pulse on input B (A)
Start/Stop by B (A) Mode:
Event counting on input A
(B) between two consecutive pulses on input B (A)
Manual Mode:
Event counting is controlled by the
START/STOP button. Sequential start-stop counts are ac-
cumulated. RESET closes the gate and resets the
timer/counter to zero.
Volt Max/Min A
(Volt max/min B via GPIB/IEEE-488 only)
Range:
–51V to +51V
Frequency Range:
DC and 100 Hz to 50 MHz (input
A); dc and 100 Hz to 5 MHz (input B)
Resolution:
Input signals within ± 5V, 20 mV; input sig-
nals outside ±5V, 200 mV
Inaccuracy
DC and 100 Hz to 12 MHz (A), or to 1MHz (B): Input sig-
nals within ±5V, 30 mV ± 1 % of reading ± 3% of Vp-p; input
signals outside ± 5V, 300 mV ± 3% of reading ±3% of Vp-p
Inaccuracy 12 MHz to 50 MHz (A) or 1MHz to
5 MHz (B):
Input signals within ± 5V, 30 mV ± 10% of reading ± 10%
of Vp-p; input signals outside ± 5V, 300 mV ± 10% of react-
ing ± 10% of Vp-p
Input-A and Input-B
Frequency Range
DC-Coupled: DC to 160 MHz (120 MHz to 160 MHz with
limited temperature range; t23°C ±5°C)
AC-Coupled: 20 Hz to 160 MHz (120 MHz to 160 MHz
with limited temperature range; t23°C ±5°C)
Minimum Pulse Duration: 4 ns
Coupling: AC or dc
Impedance: 1M_//35 pF
Channel Input: Separate A and B, or common via A
Maximum Voltage Without Damage: 350V (dc + ac peak)
between 0Hz and 440 Hz, falling to 8V rms at 1MHz
Sensitivity. DC-Coupled
Sine: 20 mVrms, 0Hz to 30 MHz; 40 mVrms, 30 MHz to
120 MHz, 60 mVrms typ., 120 MHz to 160 MHz (at room
temperature)
Pulse: 60 mVp-p, 0Hz to 30 MHz; 110 mVp-p, 30 Hz to
120 MHz; sensitivity decreases to 60 mVrms at 160 MHz
typically
Sensitivity, AC-Coupled
Sensitivity is selectable in 6
steps: 20 mV, 50 mV, 100 mV, 200 mV, 500 mV and 1Vrms
(sine) nominal
Maximum Sensitivity: 20 mVrms, 20 Hz to 30 MHz;
40 mVrms, 30 MHz to 120 MHz; sensitivity decreases to
60 mVrms typ., 120 MHz to 160 MHz (at room tempera-
ture)
Attenuation: xl or x10, switch selectable or AUTO
Trigger Slopes:
Positive or negative
Trigger Level Range
DC-Coupled: –51V to +51V, adjustable via up/down control
AC-Coupled: 0V fixed or AUTO level
Trigger Level Resolution:
20 mV, signals within ± 5V;
200 mV, signals outside ± 5V
Trigger Level Setting Accuracy:
±10mV ±1% of setting
AUTO Trigger Level:
Trigger Level on input A (and B
when required) is automatically set to 50% of input signal
amplitude.
Frequency Range: 100 Hz to 160 MHz (120 MHz to
160 MHz with limited temperature range; t 23°C ±
5°C)
Sensitivity: 150 mVpp
Trigger Indicators:
Tri-state LED indicators;
On: Signal above set trigger level.
100
100
5
10
100
9
ns
Time
s
TIME
s
Time
s
(
)
(
)
<
×
>
2 5 10
7
.
×
−
s
N
Page: 38
SPECIFICATIONS
PM 6666 - OPERATORS MANUAL
