
7
observed signal, through an external reference clock into the precision timebase section, or with the precision timebase operating on the
clock signal recovered from the observed signal. The following specifications indicate the 86100 system timebase specifications achieved
when using the 86108A/B plug-in module. (The 86100 mainframe and the 86108A/B module can also be triggered with a signal into the
mainframe. In this configuration, the basic mainframe specifications are achieved.) If the 86108A/B is placed in a mainframe that has an
integrated precision timebase (86100D-PTB), the integrated mainframe precision timebase is disabled.
Precision time base 86108A/B 86108A 86108B-LBW 86108B-HBW
Typical jitter (clock recovery (CR) and precision timebase (PTB)
configuration)
< 60 fs < 60 fs < 50 fs
Maximum jitter (clock recovery and precision timebase
configuration)
1
< 90 fs < 90 fs < 70 fs
Typical jitter (clock recovery without precision timebase active) < 1.25 ps < 1.25 ps < 1.25 ps
Effective trigger-to-sample delay (CR and PTB configuration,
typical)
< 200 ps < 200 ps < 200 ps
Typical jitter (trigger signal applied to precision timebase input) < 60 fs < 60 fs < 60 fs
Maximum jitter (trigger signal supplied to precision timebase
input)
1
< 100 fs < 100 fs < 100 fs
Precision timebase trigger bandwidth 2 to 13.5 GHz
(1 to 17 GHz)
1 to 18 GHz 1 to 18 GHz
Precision timebase external reference amplitude characteristic 1.0 to 1.6 Vpp 1.0 to 1.6 Vpp 1.0 to 1.6 Vpp
Precision timebase input signal type
2
Sinusoid Sinusoid Sinusoid
Precision timebase maximum input level ±2 V (16 dBm) ±2 V (16 dBm) ±2 V (16 dBm)
Precision timebase maximum DC offset level ±200 mV ±200 mV ±200 mV
Precision timebase input impedance 50 Ω 50 Ω 50 Ω
Precision timebase connector type
3
3.5 mm male 3.5 mm male 3.5 mm male
Timebase resolution (with precision timebase active) 0.5 ps/div 0.5 ps/div 0.5 ps/div
Timebase resolution (precision timebase disabled) 2 ps/div 2 ps/div 2 ps/div
1. Verified with maximum level input signal (~800 mVpp)
2. The precision timebase performs optimally with a sinusoidal input. Non-sinusoidal signals will operate with some degradation in timebase linearity.
3. 86108B-LBW are shipped with a 3.5mm (female) to 3.5mm (female) connector saver on the input channels (P/N 5061-5311). The 86108B-HBW is shipped with
2.4 mm female to 2.4 mm female connector savers on the input channels.
Specifications
precision time base (86108 configurations)
Commenti su questo manuale