TW5310 User Manual
11
©2011 Tallysman Wireless, Inc.
Confidential
4.3.1
1PPS Single ended termination
If you are using a single ended termination of the 1PPS signal, either of the following
terminations can be used. 1PPS_A or 1PPS_B can be used as the single ended output.
1K Ohm
1PPS_A
1PPS-B
Gnd
1PPS_A
1PPS-B
500 Ohms
500 Ohms
Figure 7
4.4
Cable Delays:
The timing of the 1PPS pulse depends on the length of both antenna and interface
cables. The 1PPS signal can be adjusted to provide a synchronized UTC second at the
users end-point.
Cable delays of 1 to 200ns can be configured.
To account for cable delays add 3ns for each meter of cable.
