HP Edgeline EL1000, User Manual

Page: 155 / 164

System synchronization clock specifications System synchronization clock specifications
10 MHz system reference clock: PXI_CLK10 10 MHz system reference clock: PXI_CLK10
Specification Specification Value Value
Maximum slot-to-slot skew 1 ns
Accuracy ±25 ppm max (guaranteed over the operating
temperature range)
Maximum jitter 5 ps RMS phase jitter (10 Hz to 1 MHz range)
Duty factor 45% to 55%
Unloaded signal swing 3.3 V ±0.3 V
NOTE: NOTE:
For other specifications, see 'PXI-1 Hardware Specification' at the PXI Systems Alliance website
(http://www.pxisa.org/userfiles/files/Specifications/PXIHWSPEC22.pdf
http://www.pxisa.org/userfiles/files/Specifications/PXIHWSPEC22.pdf).
100 MHz system reference clock: 100 MHz system reference clock: PXIe_CLK100 and PXIe_SYNC100 PXIe_CLK100 and PXIe_SYNC100
Specification Specification Value Value
Maximum slot-to-slot skew 200 ps
Accuracy ±25 ppm max (guaranteed over the operating
temperature range)
Maximum jitter 5 ps RMS phase jitter (10 Hz to 12 kHz range); 5 ps RMS
phase jitter (12 kHz to 20 MHz range)
Duty factor for PXIe_CLK100 45% to 55%
Absolute single-ended voltage swing (when each line in
the differential pair has 50 W termination to 1.30 V or
Thévenin equivalent) 400 mV to 1,000 mV
NOTE: NOTE:
For other specifications, see 'PXI-5 PXI Express Hardware Specification' at the PXI Systems Alliance website
(http://www.pxisa.org/userfiles/files/Specifications/PXIEXPRESS_HW_SPEC_R1.PDF
http://www.pxisa.org/userfiles/files/Specifications/PXIEXPRESS_HW_SPEC_R1.PDF).
External 10 MHz reference out (SMA on front panel of chassis) External 10 MHz reference out (SMA on front panel of chassis)
Specification Specification Value Value
Accuracy ±25 ppm max (guaranteed over the operating
temperature range)
Maximum jitter 5 ps RMS phase jitter (10 Hz to 1 MHz range)
Output amplitude 1 VPP ±20% square wave into 50 Ω 2 VPP unloaded
Output impedance 50
Ω
±5
Ω
External clock source External clock source
Specification Specification Value Value
Frequency 10 MHz ±100 PPM
Input amplitude Input amplitude —
System synchronization clock specifications 155