EVA-7M - Hardware Integration Manual
UBX-12003235 - R05
Production Information
Appendix
Page 28 of 42
Appendix
A
Reference schematics
A.1
Cost optimized circuit
•
Passive Antenna
•
No RTC crystal
•
No backup battery
•
UART and DDC for communication to host
Figure 14: Cost optimized circuit
1
To achieve the performance values as written in the
EVA-7M Data Sheet
[1] either use an active antenna or add an LNA+SAW between the
passive antenna and RF_IN pin.
