Instructions

2
Specification
Input Specifications
Input A
Configurable
options
Input coupling:
Input impedance:
Attenuation:
Active edge:
Low pass filter:
Trigger threshold:
AC or DC
1MΩ or 50Ω
1:1 or 5:1
Rising or falling, or width high or low
Filter In (~50kHz cut-off) or Out
Variable threshold for both DC and AC coupling
Input Impedance:
1MΩ//25pF (DC or AC coupled)
or 50Ω nominal (AC coupled only).
Frequency Range:
< 0.001Hz to >125MHz (1MΩ, DC coupled).
< 30Hz to >125MHz (1MΩ, AC coupled).
< 500kHz to > 125MHz (50Ω, AC coupled).
Trigger Threshold:
DC coupled:
AC coupled:
0 to 2V (1:1 attenuation) or 0 to 10V (5:1 attenuation).
Average ± 50mV (1:1 attenuation) or ± 250mV (5:1 attenuation).
Input Signal Range:
1MΩ, DC coupled:
1MΩ, AC coupled:
50Ω, AC coupled:
0 to 3.3V max (1:1 attenuation) or 1 to 12V max (5:1 attenuation).
1V
rms or 3V
pp
max (1:1 attenuation) or 4Vrms or 12V
pp
max (5:1 attenuation).
1V
rms above 300kHz.
Sensitivity:
Sinewave - 15mVrms 30Hz to 100MHz, 25mV to 125MHz
at optimum threshold adjustment.
Input B
Input Impedance:
50Ω nominal (AC coupled).
Frequency Range:
< 80MHz to >3GHz.
Sensitivity:
Sinewave - 12mVrms 80MHz to 2GHz,
25mVrms to 2.5GHz, 50mVrms to 3GHz.
Input Signal range:
< 0dBm recommended, +13dBm (1Vrms) maximum.
External Reference Input
Input Impedance:
>100kΩ, AC coupled.
Frequency:
10MHz.
Signal Level:
TTL, 3V
pp
to 5V
pp
CMOS or 1 to 2Vrms sinewave.
Maximum Input Voltage
Inputs A and B and
External Reference:
30V
DC; 30Vrms 50/60Hz with respect to earth ground
Note that the
inputs will not be damaged if subjected to an accidental short-term connection to a 50/60Hz
line voltage not exceeding 250V
rms, or 250V DC.