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NI PXI/PCI-5124 Specifications 18 ni.com
Time
Resolution
TDC Onboard Clock External Clock TDC = Time
to Digital
Conversion
Circuit
On 50 ps N/A
Off 5ns External Clock Period
Rearm Time TDC Rearm Time Holdoff set to 0
On 10 μs
Off 2 μs
Holdoff TDC Onboard Clock External Clock —
On 10 μs to 85.899 s N/A
Off 2 μs to 85.899 s 200 × (External Clock
Period) to
(2
32
– 1) × (External Clock
Period)
Analog Trigger (Edge, Window, and Hysteresis Trigger Types)
Sources CH 0 (front panel BNC connector)
CH 1 (front panel BNC connector)
TRIG (front panel BNC connector)
—
Trigger Level
Range
CH 0, CH 1 TRIG (External Trigger) —
100% FS ±5 V
Trigger Level
Resolution
10 bits (1 in 1,024) —
Edge Trigger
Sensitivity
CH 0, CH 1 TRIG (External Trigger) —
3.5% FS up to 50 MHz,
increasing to 10% FS at
150 MHz
0.25 V
pk-pk
up to 100 MHz,
increasing to 1 V
pk-pk
at
200 MHz
Level
Accuracy,
Typical
CH 0, CH 1 TRIG (External Trigger) —
±4.7% FS up to 10 MHz ±0.35 V up to 10 MHz
Trigger
Jitter
≤80 ps rms Within ±5 °C of
self-calibration
temperature
Specification Value Comments