Hardware description
5.13 SiP enable
The SiP can be enabled or disabled by pulling pin 101 high and low.
By default, the enable signal is pulled high by resistor R3. To disable the SiP, connect to test point TP1 (on
the back of the board) and pull the pin low.
5.14 Solder bridge configuration
The nRF9160 DK has a range of solder bridges for enabling or disabling functionality on the board.
Changes to these are not needed for normal use of the development kit.
The following table is a complete overview of the solder bridges on the nRF9160 DK.
Solder bridge Default Function
SB1 Closed Cut to disconnect supply to the GPS LNA/BPF (U3)
SB2 Closed Cut to disconnect VDD_GPIO supply to the SiP
SB3 Open Short to bypass switch U26
SB4 Open Short to bypass switch U31
SB5 Closed Cut to disconnect the RESET signal from nRF52840
SB6 Closed Cut to disconnect RTS signal from nRF52840
SB7 Closed Cut to disconnect CTS signal from nRF52840
SB8 Closed Cut to disconnect RXD signal from nRF52840
SB9 Closed Cut to disconnect TXD signal from nRF52840
SB10 Closed Cut to disconnect SWDIO from nRF52840
SB11 Closed Cut to disconnect SWDCLK from nRF52840
SB12 Closed Cut to disconnect the 3.3 V USB supply from the interface MCU (U2)
SB13 Closed Cut to disconnect supply to LDO (U32)
SB14 Closed Cut to disconnect RTS from the SiP
SB15 Closed Cut to disconnect RTS from the SiP
SB16 Closed Cut to disconnect RXD from the SiP
SB17 Closed Cut to disconnect TXD from the SiP
SB21 Open Short to bypass switch U27
SB22 Closed Cut to disconnect protection diode D3
SB23 Open Short to bypass protection diode D3
SB24 Open Short to bypass the USB detect switch (Q3)
SB25 Closed Cut to disconnect the RESET button from the nRF9160 reset pin when
the interface MCU is disconnected
SB26 Closed Cut to disable the pull-up resistor of the RESET button (SW2)
4418_1216 v0.7
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