
5. Typical Connection Diagrams
5.1 Typical BGM13S Connections
Typical connections for the BGM13S module are shown in
Figure 5.1 Typical Connections for BGM13S with UART Network Co-Pro-
. This diagram shows connections for:
• Power supplies
• Antenna loop for internal antenna usage or external antenna connection - The RF and ANTENNA pins should be tied together for
correct operation of the module. An optional 0R resistor can be added between RF and ANTENNA, making it possible to measure
the signal between these pins.
• Reset line
• UART connection to an external host for Network Co-Processor (NCP) usage (optional)
• 32.768 kHz crystal - Required in applications that must meet 500 ppm Bluetooth Sleep Clock accuracy requirement. More accurate
crystals can be used to reduce the listening window and thereby reduce overall current consumption. Recommended crystal is KDS
part number
1TJG125DP1A0012
or equivalent.
Note:
It is recommended to connect the RESETn line to the host CPU when NCP mode is used.
Wireless
Module
Host CPU
RESETn
PA0 / UART_TX
PA1 / UART_RX
PA2 / UART_CTS
PA3 / UART_RTS
PB15 / LFXTAL_P
PB14 / LFXTAL_N
PB13 / PTI_FRAME
PB12 / PTI_DATA
VSS
PF3 / TDI
PF2 / TDO / SWO
PF1 / TMS / SWDIO
PF0 / TCK / SWCLK
RF
ANTENNA
RX
TX
RTS
CTS
GPIO
PTI_FRAME
PTI_DATA
TCK / SWCLK
TMS / SWDIO
TDO / SWO
TDI
R1 (0R)
Use 0R to connect
internal antenna
R2 (0R)
Use 0R to connect external
antenna
32.768 kHz XTAL
(optional)
VB
AT
T
1V8
IO
VDD
Battery / Supply Voltage
VDD
VSS
Battery or Regulator
Figure 5.1. Typical Connections for BGM13S with UART Network Co-Processor
Note:
It is possible to power the IOVDD pin at 1.8 V from the DC-DC output (1V8). However, the 1V8 output is off by default, and
IOVDD must be powered when programming the device. Any system that powers IOVDD directly from 1V8 must power IOVDD exter-
nally during initial programming.
BGM13S Blue Gecko
Bluetooth
®
SiP Module Data Sheet
Typical Connection Diagrams
silabs.com
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