User's Manual
NI PXI/PCI-5114 Specifications 8 ni.com
CLK IN (Sample Clock and Reference Clock Input,
Front Panel Connector)
Trigger
Reference (Stop) Trigger
Specification Val ue
Input Voltage Range Sine wave: 0.65 V
pk-pk
 to 2.8 V
pk-pk
 (0 dBm to 13 dBm)
Square wave: 0.2 V
pk-pk
 to 2.8 V
pk-pk
Maximum Input 
Overload
7V
rms
 with |Peaks| ≤10 V
Impedance 50 Ω
Coupling AC
Specification Val ue Comments
Trigger Types 
and Sources
Types Sources Refer to the 
following 
sections and to 
NI High-Speed 
Digitizers Help 
for more 
information. 
Edge, Window, Hysteresis, 
Video, Digital, Immediate, 
and Software
CH 0, CH 1, TRIG, 
PXI_Trig<0..6>, PFI <0..1>, 
PXIStarTrigger, 
RTSI<0..6>, and Software
Time 
Resolution
TDC Onboard Clock External Clock TDC = Time to 
Digital 
Conversion 
Circuit
On 40 ps N/A
Off 4ns External Clock Period
Rearm Time TDC Rearm Time Holdoff set to 0
On 10 μs
Off 2 μs
Holdoff From Rearm Time up to [(2
35
 – 1) × (Sample Clock Period)] —
Trigger Delay From 0 up to [(2
35
 – 1) – posttrigger samples] × 
(1/sample rate), in seconds
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