Block Diagram

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1
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2
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3
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8
D D
C C
B B
A A
A3
Bigfoot Biomedical Inc.
1820 McCarthy Blvd.,
1-408-716-5600
Milpitas, CA 95035
1 1
SHEET OFSCALE: None
REVDOCUMENT NO.SIZE
TITLE
Inject V1 LCAP Block Diagram.SchDoc
FORM FT-10012, Rev. A
nRF52840
Button
Force Reset Circuit
Bluetooth Trace Antenna
Flash (32M x 8)
Security Device
Interface Board
NFC Trace Antenna
Real Time Clock
3V Regulator (Always On) 2.8V Regulator (Switched)
Display Interface
Battery Voltage
Battery
Bluetooth
Microcontroller
SPI
I2C
SPI
I2C
Power Control
Charger
USB-C
Divider
Pen SW
Charge
Charge
Battery S/D
Bat S/D
Bat S/D
POGO Pads (TPs)
Programming
Serial Interface
Flex Circuit
VBUS Wake
VBUS
V_BT
Controller Board
(2 TPs)
(2 TPs)
( 1 TP)
ETM Trace (5 TPs)
( 1 TP)
( 1 TP)
( 1 TP)
( 1 TP)
( 1 TP)
( 1 TP)
( 1 TP)
Buffers With
TXD Pwr Ctrl
V_BT
PER_2V8
32 MHz
32.768 kHz
2.402 - 2.480 GHz
(Internal 32.768 kHz Crystal)
(Internal 32 MHz Crystal)
Inject V1 LCAP Block Diagram
N/A
A
Unused