LinkIt 2523 HDK v11 User's Guide
© 2015 - 2016 MediaTek Inc.
Page 31 of 82
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Figure 18. Positions of J1101 and Bluetooth antenna path selection from J5001 to J5004, U1101, CON2101 and
resistor R5005
Table 16. Jumper pin settings (illustrated) for Bluetooth
Bluetooth external
buck activated
Connect the jumper J1101 pin 1 and pin 2 to set the external buck U1101
enabled by power rail VIO28, as shown below.
Connect the jumper J1101 pin 1 and pin 2 to set the external buck U1101
enabled by ROM, as shown below.
Bluetooth external
Connect the jumper J5001 pins
with 0Ω resistor
to set the Bluetooth clock to
the clock signal generated by 26MHz XTAL, as shown below.
BAT CON (CON2101)
Connector
U1101 J1101
J5001
1 2 3
1
2
3
1
2
3
Left: J5004
Right: J5002
J5003
3 2 1
R5005
1 2 3
1 2 3