11
Timebase
Specification
Value
Sample Clock
Sources
Internal: onboard oscillator
External: CLK IN (front panel SMB connector), PXI STAR,
PXI Trigger Bus[0..7], PXI 10MHz, SSI bus
PCI/PXI-69816
PCI/PXI-69826
PCI/PXI-69846
Timebase Frequency
Range
10 MHz-1 MHz
20 MHz-1 MHz
40 MHz-1 MHz
Sampling Rate Range
(24-bit divided counter)
10 MS/s-0.596 S/s
20 MS/s-1.192 S/s
40 MS/s-2.384 S/s
Internal
Oscillator
Stability
±25 ppm
CLK IN (external clock from front panel)
Connector Type
SMB
Clock Type
Sine wave or square wave
Input Impedance
50 Ω
Input Coupling
AC
Input Range
1VP-P to 2VP-P
Overvoltage Protection 2.5 VP-P
Table 1-8: Timebase