The PPS-2 pulse generator is used to generate one pulse per second signals from a sine-wave input signal. The input can be a 1 MHz, 5 MHz or 10 MHz signal. The pulse-per-second (pps) output has a variable pulse width. The input frequency selection and pulse width selections are configured via jumper settings. The output pps can synchronize with an external event. The synchronization is good to +/- ½ of the input clock cycle. The outputs are designed to drive low impedance loads and long 50 or 75-ohm cables. The channel-to-channel delay differences are less than 1 ns. The instrument is available in a 3.5” X 8.4” X 12 “ enclosure. The unit will operate on 110/220 VAC.

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FeaturesApplications
  • External sync
  • High stability
  • Low input VSWR
  • Low temperature coefficient: 3 ps/°C
  • 50 ohm output: 2 Vp-p
  • Reference clock distribution
  • 1 PPS generation
  • Time synchronization

PPS-2 Options

PPS-2 RM-B

      This option provides 2 PPS-2 Modules in a 1U high 19" rack-mount enclosure. Power requirements are 110/220 VAC.


PPS-2 RM-B Users Manual
Specifications
ParameterConditionsMinTypMaxUnits
Rise Time 10-90 % - 3 4 ns
Fall Time 10-90% - 3 4 ns
Differential delay Channel - channel - 200 500 ps
Impedance Input
Output		 -
-		 50
10		 -
-		 Ohms
Return loss Input (S11) - -35 -25 dB
High level
Low level		 50 ohm load
50 ohm load		 2
-		 2.4
0.4		 -
0.5		 V
Input signal level 1 MHz, 5 MHz and 10 MHz -3 +7 +13 dBm
External Sync. error 1 MHz
5 MHz
10 MHz		 -
-
-		 +/-500
+/-100
+/-50		 -
-
-		 ns
Temperature-delay coefficient 0-50 °C - 3 5 ps/°C

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