DR + GPS
STARTER KIT REFERENCE MANUAL
Lassen DR + GPS Reference Manual 129
Table 101: PPS
The PPS is present once power is applied to the unit.
Table 102: PPS Characteristics
Characteristic Conditions Min. Typical Max. Unit
Timing accuracy
To UTC time with valid position fixes ±500 ns
Pulse duration
80 90 us
Rise time of leading edge Rising edge is synchronized to UTC
second.
25 ns
Output voltage
2.76 V
Table 103: Gyro
Supported GYRO units are:
Epson XV-810
Epson XV-8100CB (3V)
Epson XV-8000CB (5V)
Murata ENX-0126
Panasonic EWTS-82
Table 104: 3 Volt Gyros
Characteristic Min. Typical Max. Unit
Vgyro 0 3.3 V
Gyro rate 2.5 mV/(degree/s), +/- 10%
Zero Rate Output (Epson) 1.35 V
Note: Check with your local Trimble Sales for the latest version of Lassen
DR+GPS firmware that supports your Gyro option.
The Murata part cannot fit inside the Lassen DR+GPS starter kit due to
an incompatible pin-out, but could be suitable for use in a customer
application.
Confirm that the Gyro used with the Lassen DR+GPS starter kit has the
same pin-out as the Panasonic EWTS-82 and uses the specification to
what is listed in the table above.