u-blox UBX-G7020 - Page 49

UBX-G7020 - Hardware Integration Manual
Component Selection
GPS.G7-HW-10003 Objective Specification Page 49 of 74
ID
Parameter
Value
duration, 3 cycles each plane
5.2
Vibration
10 G RMS 30 Hz to 1500 Hz, duration of 6 hours
5.3
Humidity
48 hours at 85 °C 85% relative humidity non-condensing
5.4
Thermal shock
Exposed at –40 °C for 30 minutes then to 85 °C for 30 minutes
constantly for 120 cycles (5 days)
5.5
Storage temperature
-40 °C +85 °C
6
Manufacturing information
6.1
Solder Process
Able to withstand solder reflow process, min. 3 Cycles (240 °C,
20 s)
6.2
Packaging description
Tape and Reel
Table 13: TCXO specifications
Manufacturer
Order No.
Comments
Rakon
IT2205BE 26.000MHz TX5738
3.0 V TCXO
Rakon
IT5305BE 26.000MHz TX5477
3.0 V TCXO
Rakon
IT2205ME 26.000MHz TX5596
1.75V to 2.0V TCXO
Table 14: Recommended parts list for TCXO
Other TCXOs can be used provided they meet the specifications listed in Table 13. For reliable GPS
performance particular attention must be paid to the temperature range and frequency slope
specifications.
Confidential