Ublox ZED-F9K - Antenna

ZED-F9K-Integration manual
Figure 34: Example WT and DIR design
ID Description
R1 RES THICK FILM CHIP 0603 3K3 5% 0.1W
R2 RES THICK FILM CHIP 0603 470R 5% 0.1W
R3 RES THICK FILM CHIP 0603 910R 5% 0.1W
R4 RES THICK FILM CHIP 0603 3K3 5% 0.1W
R5 RES THICK FILM CHIP 0603 470R 5% 0.1W
R6 RES THICK FILM CHIP 0603 910R 5% 0.1W
C1 CAP CER X7R 0603 1N 10% 25V
C2 CAP CER X7R 0603 100N 10% 10V
C3 CAP CER X7R 0603 22N 10% 10V
C4 CAP CER X7R 0603 100N 10% 10V
C5 CAP CER X7R 0603 1N 10% 25V
C6 CAP CER X7R 0603 100N 10% 10V
C7 CAP CER X7R 0603 22N 10% 10V
C8 CAP CER X7R 0603 100N 10% 10V
D1 VOLTAGE REGULATOR DIODE FAIRCHILD BZX84 SOT23 6V2 0.2A
D2 VOLTAGE REGULATOR DIODE FAIRCHILD BZX84 SOT23 6V2 0.2A
O1 OPTOCOUPLER LVTTL/LVCMOS COMPATIBLE AVAGO HCPL-070L-000E SO8
O2 OPTOCOUPLER LVTTL/LVCMOS COMPATIBLE AVAGO HCPL-070L-000E SO8
U1 TINY LOGIC UHS INVERTER WITH SCHMITT TRIGGER FAIRCHILD NC7SZ14 SOT23-5
U2 TINY LOGIC UHS INVERTER WITH SCHMITT TRIGGER FAIRCHILD NC7SZ14 SOT23-5
Table 24: WT and DIR example
4.5 Antenna
TheZED-F9Krequires an active antenna with integral LNA to ensure good performance under
nominal signal reception.
When implementing a custom antenna installation, it is recommended that an OEM active antenna
module be used that meets our specification. Implementing a custom active antenna design is an
UBX-20046189 - R01
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4 Design Page 77 of 105
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