Reference Design For Passive Antenna - Quectel UC20 Manual
Umts/hspa module series
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Also See for UC20:
- Hardware design (83 pages) ,
- User manual (33 pages) ,
- Application note (30 pages)
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Table 28: GNSS Frequency
Type
GPS
GLONASS
5.2.1. Reference Design for Passive Antenna
Passive
antenna
100pF
6.8nH
D1
UC20_Hardware_Design
active antenna.
Frequency
1575.42± 1.023
1597.5~1605.8
GND
GND
RFIN
MAX2659
NM
Figure 35: Reference Circuit of GNSS Passive Antenna
Confidential / Released
UMTS/HSPA Module Series
Unit
MHz
MHz
56pF
RFOUT
MCU_GPIO
/SHDN
51K
VCC
220nF
33pF
UC20 Hardware Design
NM
ANT_GNSS
VDD_2V85
Module
60 / 84
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