5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
Board Function Page
1
2
3
EFR32 RF, Power & IO
Title Page
4MEMS Microphone & RGB LEDs
EFR32 connections & interfaces
Thunderboard Sense 2
Rev.
Description
Revision History
5SPI & I2C Sensors
6Debug MCU
7Debug Misc. & Power
EFR32MG12P332F1024GL125
Initial prototype version.A00
Updated EFR32 and debugger IC
revisions.
Replaced analog microphone with an
I2S-based digital one.
B00
Changed microphone to Knowles
SPH0645LM4H-B
B01
Size
Designed:
Revision
Sheet
of
Approved:
Sheet Created Date Sheet Modified Date
Document number
Schematic Title
Design Created Date:
BOM Doc No:
Page Title
B01
BRD4166A
Wednesday, February 08, 2017
1 7
A3
DDB
JNO
Thunderboard Sense 2
<Cage Code>
Wednesday, November 30, 2016
Wednesday, November 30, 2016
SCHEMATIC1
Title Page
Size
Designed:
Revision
Sheet
of
Approved:
Sheet Created Date Sheet Modified Date
Document number
Schematic Title
Design Created Date:
BOM Doc No:
Page Title
B01
BRD4166A
Wednesday, February 08, 2017
1 7
A3
DDB
JNO
Thunderboard Sense 2
<Cage Code>
Wednesday, November 30, 2016
Wednesday, November 30, 2016
SCHEMATIC1
Title Page
Size
Designed:
Revision
Sheet
of
Approved:
Sheet Created Date Sheet Modified Date
Document number
Schematic Title
Design Created Date:
BOM Doc No:
Page Title
B01
BRD4166A
Wednesday, February 08, 2017
1 7
A3
DDB
JNO
Thunderboard Sense 2
<Cage Code>
Wednesday, November 30, 2016
Wednesday, November 30, 2016
SCHEMATIC1
Title Page
PCB1
PCB4166
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
2.4 GHz matching network
Power & Decoupling
RF Section
Reset button
Low Frequency Crystal
GPIO Pins
Mounting Holes
GND
GND
GND GND
GND
VMCU
GND
GND
GND
GND
GND
GND
RFVDD
GND
GND
PAVDD
VMCU
RFVDD PAVDD
GND
GND
GND
GND
GND GND
VMCU
GNDGND
GND GND
GND GND GND
EFR32_RESET
EFR32_PA[9..0]
EFR32_PB[15..6]
EFR32_PC[11..0]
EFR32_PD[15..8]
LFXTAL_P
LFXTAL_N
EFR32_PF[15..0]
EFR32_PI[3..0]
EFR32_PJ[15..14]
EFR32_PK[2..0]
Size
Designed:
Revision
Sheet
of
Approved:
Sheet Created Date Sheet Modified Date
Document number
Schematic Title
Design Created Date:
BOM Doc No:
Page Title
B01
BRD4166A
Wednesday, February 08, 2017
2 7
A3
DDB
JNO
Thunderboard Sense 2
<Cage Code>
Wednesday, November 30, 2016
Wednesday, November 30, 2016
SCHEMATIC1
<Schematic Path>
EFR32 - RF, power & IO
Size
Designed:
Revision
Sheet
of
Approved:
Sheet Created Date Sheet Modified Date
Document number
Schematic Title
Design Created Date:
BOM Doc No:
Page Title
B01
BRD4166A
Wednesday, February 08, 2017
2 7
A3
DDB
JNO
Thunderboard Sense 2
<Cage Code>
Wednesday, November 30, 2016
Wednesday, November 30, 2016
SCHEMATIC1
<Schematic Path>
EFR32 - RF, power & IO
Size
Designed:
Revision
Sheet
of
Approved:
Sheet Created Date Sheet Modified Date
Document number
Schematic Title
Design Created Date:
BOM Doc No:
Page Title
B01
BRD4166A
Wednesday, February 08, 2017
2 7
A3
DDB
JNO
Thunderboard Sense 2
<Cage Code>
Wednesday, November 30, 2016
Wednesday, November 30, 2016
SCHEMATIC1
<Schematic Path>
EFR32 - RF, power & IO
M2
2.2 MM
C4
220N
C10
1U
L4
CIM03U241
1 2
SW3
PTS810
1
2
3
4
M1
2.2 MM
C7
4U7
C3
10P
C77
100N
L1
2N2
C1
1P5
L2
1N8
RF Analog Power
PA Power
Ground
RF I/ORF Crystal
EFR32MG12P332F1024GL125
U1B
HFXTAL_N
K1
HFXTAL_P
L1
PAVDD
M8
PAVDD
N8
PAVSS
M6
PAVSS
M7
RFVDD
J1
RFVDD
J2
RFVSS
H5
RFVSS
H6
RFVSS
H7
RFVSS
H8
RFVSS
H9
RFVSS
J5
RFVSS
J6
RFVSS
J7
RFVSS
J8
RFVSS
J9
RFVSS
K2
RFVSS
L2
RFVSS
M2
RFVSS
M3
RFVSS
M4
RFVSS
M5
RFVSS
N5
RFVSS
G7
RFVSS
E5
RFVSS
E6
RFVSS
E7
RFVSS
E8
RFVSS
E9
RFVSS
F5
RFVSS
F6
RFVSS
F7
RFVSS
F8
RFVSS
F9
RFVSS
G5
RFVSS
G6
RFVSS
G8
RFVSS
G9
2G4RF_ION
N6
NC
N1
NC
N3
NC
N4
NC
N2
2G4RF_IOP
N7
L5
4U7
R2
1R
C75
100N
C5
10P
C9
1U
ANT1
2450AT18D0100
GND
2
IN
1
GND
3
GND
4
C11
100N
R98
100R
C65
10U
C76
100N
X1
38.4 MHz
31
2
4
EFR32MG12P332F1024GL125
U1A
PA0 / US0_TX #0
M13
PA1 / US0_RX #0
L13
PA2 / US0_CTS #30
L12
PA3 / US0_RTS #30
K13
PA4 / US1_CS #0
K12
PA5
J13
PA6
J12
PA8
H13
PA9
H12
PB6 / I2C1_SDA #6
F12
PB7 / I2C1_SCL #6
E13
PB8 / I2C1_SDA #8
E12
PB9 / I2C1_SCL #8
D13
PB10
D12
PB11 / PCNT0_S0IN #6
D11
PB12 / FRC_DOUT #6
C13
PB13 / FRC_DFRAME #6
C12
PB14 / LFXTAL_N
C11
PB15 / LFXTAL_P
C10
PC0 / US3_TX #18
A5
PC1 / US3_RX #18
B5
PC2 / US3_CLK #18
C5
PC3 / US3_CS #18
A4
PC4 / I2C1_SDA #17
B4
PC5 / I2C1_SCL #17
A3
PC6 / US1_TX #11
B9
PC7 / US1_RX #11
A8
PC8 / US1_CLK #11
B8
PC9 / US1_CS #11
A7
PC10 / I2C0_SDA #15
B7
PC11 / I2C0_SCL #15
A6
PD8
N9
PD9
M9
PD10
N10
PD11 / TIM0_CC0 #19
M10
PD12 / TIM0_CC1 #19
N11
PD13 / TIM0_CC2 #19
M11
PD14 / GPIO_EM4WU4
N12
PD15
N13
DBG_SWCLK / PF0
B3
DBG_SWDIO/ PF1
A2
DBG_SWO #0 / PF2
B2
LEU0_TX #27 / PF3
A1
LEU0_RX #27 / PF4
G2
PF5
G1
PF6
H2
PF7
H1
PF8
B1
PF9
C3
PF10
C2
PF11
C1
PF12
D3
PF13
D2
PF14
D1
PF15
E3
PI0
G13
PI1
G12
PI2
G11
PI3
F13
PJ14
B6
PJ15
C6
US2_RX #28 / PK0
E2
US2_CLK #28 / PK1
E1
US2_CS #28 / PK2
F1
PA7
J11
C14
100N
Reset
Ground
Digital Logic
Digital Regulator
DC/DC Regulator
Digital Supply
I/O Supply
Analog Supply
EFR32MG12P332F1024GL125
U1C
AREGVDD
A10
AVDD
B13
IOVDD
M12
IOVDD
B10
IOVDD
F2
IOVDD
F11
RESETN
M1
VREGVDD
A11
VREGSW
A12
VREGVSS
A13
VREGVSS
B11
VREGVSS
B12
BODEN
L10
DECOUPLE
A9
C6
NM
L6
CIM03U241
1 2
C2
100P
L3
CIM03U241
1 2
R110
0R
C13
10N
C20
1P5
X2
32.768 kHz
21
C8
10U
C12
1U
EFR32_PA0
EFR32_PA1
EFR32_PA2
EFR32_PA3
EFR32_PA4
EFR32_PA5
EFR32_PB6
EFR32_PB7
EFR32_PB8
EFR32_PC6
EFR32_PC7
EFR32_PC8
EFR32_PC9
EFR32_PC10
EFR32_PC11
EFR32_PA6
EFR32_PA7
EFR32_PA8
EFR32_PA9
EFR32_PB9
EFR32_PB10
EFR32_PB11
EFR32_PB12
EFR32_PB13
EFR32_PB14
EFR32_PB15
EFR32_PC0
EFR32_PC1
EFR32_PC2
EFR32_PC3
EFR32_PC4
EFR32_PC5
EFR32_PD10
EFR32_PD11
EFR32_PD12
EFR32_PD13
EFR32_PD14
EFR32_PD15
EFR32_PD8
EFR32_PD9
EFR32_PF0
EFR32_PF1
EFR32_PF2
EFR32_PF3
EFR32_PF4
EFR32_PF5
EFR32_PF6
EFR32_PF7
EFR32_PF8
EFR32_PF9
EFR32_PF10
EFR32_PF11
EFR32_PF12
EFR32_PF13
EFR32_PF14
EFR32_PF15
EFR32_PI0
EFR32_PI1
EFR32_PI2
EFR32_PI3
EFR32_PJ14
EFR32_PJ15
EFR32_PK0
EFR32_PK1
EFR32_PK2