10 XLi Time & Frequency System
XLi-man, Issue 8, 6/17/2008, Rev. H
SSSSSSSSSSSS SSSSSSSSSS SSSSSSS S SSS S SSSSS S
1
J2 Output – Rate Out or Programmable Pulse Output
The Programmable Pulse Output (PPO) option (part number 87-8024) generates a precisely
synchronized trigger pulse at an arbitrary time and with arbitrary pulse width in integer multiples of 1 μS.
The start and stop edges of the PPO can be programmed with 1 μS resolution.
See “F111 – J2 Output (Rate, PPO)” on page 142.
J3 Input – Auxiliary Reference or Frequency Measurement
Auxiliary Reference (Aux Ref):
Rate: 1 PPS, 10 PPS, 100 PPS, 1 kPPS, 10 kPPS, 100 kPPS, 1 MPPS, 5
MPPS, 10 MPPS, PPO (if PPO option is installed)
Duty cycle: 40-60% ± 10%
Amplitude (TTL): TTL Levels into 50 Ω
Quantity: 1
Connector: Female BNC
Factory Configuration: The Rate Output is default 10 MPPS
Pulse Width: Programmable in 1 μS steps
Start: Rising
Stop: Falling
Amplitude: TTL levels into 50 Ω
Accuracy
Refer to
“System Time & Frequency Accuracy” on page 6
Frequency: 1, 5, 10 MHz
Amplitude: 1 Vp-p to 10 Vp-p at 1 kΩ to ground
Amplitude: 1 Vp-p to 3 Vp-p at 50 Ω to ground
Impedance: Configurable 1 kΩ or 50 Ω to ground
SNR: >20db
Quantity: 1
Connector: Female BNC
Factory Configuration: Disabled
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com