Figure 7: Switches And Headers - Broadcom BCM920737TAG-03 User Manual

BCM920737TAG-03 WICED Smart Tag Hardware User Manual
POWER
VCOIN
VDDIO
VREG
SW3
SSSS811101
1
2 R99 0
3
SH3 SH1
SH4 SH2
SW3 setting for VDDIO
2-1: Use coin cell battery (1.8V-3.0V)
2-3: Use regulated voltage
GPIO HEADERS UART
J7
1
P1 2,5
2
P3 2,5
3
P2 2
4
P4 2
5
P8/P33 2,5
2,5 UP_RX
PBC05SAAN
2,5 UP_TX
2,5 P8/P33
J8
2,5 P32
1
P32 2,5 2,5 P3
2
2,5 P1
P13/P28 2
3
P15 2,5
4
P12/P26 2,3
5
P11/P27 2,3
PBC05SAAN
®
Broadcom
March 28, 2014 • MMP920737TAG03-HWUM100-R

Figure 7: Switches and Headers

5V_USB SW2
SSSS811101 REG_IN
1
VCOIN
2
3
SH3 SH1
SH4 SH2
C24
4.7uF
SW2 setting for VREG
2-1: Use USB 5V
2-3: Use coincell battery
5V_USB 5V_FTDI
VDDIO SW4 VDDIO_HCI
218-8LPSTR
CTS_EXT
1 16
ON
RTS_EXT
2 15
RXD_EXT
3 14
TXD_EXT
4 13
5 12
6 11
7 10
8 9
Switch SW4 pos1-4 ON to use HCI UART
Switch SW4 pos1-4 OFF to run APP mode
RXD_PUART_FTDI
TXD_PUART_FTDI
CTS_PUART_FTDI
RTS_PUART_FTDI
U13
XC9236_ADJ
L2
SON6H
6 1
VIN LX
4
CE/MODE 4.7uH
RFB1
2 3 300K
VSS FB
5
VSS
H
HS-VSS
RFB2
240K
Regulator output is set to 1.8V. Can adjust as needed:
Vout = 0.8x(RFB1 + RFB2)/RFB2
Vout = 3.3V RFB1=470K RFB2=150K
Vout = 3.0V RFB1=330K RFB2=120K
Vout = 1.8V RFB1=300K RFB2=240K
3V3_FTDI
VDDIO_HCI
U20
MAX3395E
QFN12_4X4+EP
12 11
VL VCC
1 10 R119
I/O_VL1 I/O_VCC1
2 9 R118
I/O_VL2 I/O_VCC2
3 8 R120
I/O_VL3 I/O_VCC3
4 7 R121
I/O_VL4 I/O_VCC4
6 5
EN GND
H
HS-GND
R115
10K
VDDIO_HCI
U21 3V3_FTDI
MAX3395E
QFN12_4X4+EP
12 11
VL VCC
1 10 R123
I/O_VL1 I/O_VCC1
2 9 R122
I/O_VL2 I/O_VCC2
3 8 R117
I/O_VL3 I/O_VCC3
4 7
R116
I/O_VL4 I/O_VCC4
6 5
EN GND
H
HS-GND
R124
10K
SWD
VREG
J10
PBC04SAAN
C22
150pF
C25
10uF
UP_RX
A
RD9
0
C
5 SWDIO 5
C22=100pF
C22=150pF
C22=150pF B
P15
INSTALL POSITION A
VDDIO_HCI
R24
CTS_EXT
0 6
0
CTS_FTDI1 4
6
RTS_EXT
0 5
RTS_FTDI1 4
5
0 4
RXD_FTDI1 4
4
RXD_EXT
0 3
TXD_FTDI1 4
3
2
2
1 TXD_EXT R36
1
10K (DNI)
JP1
0
RXD_FTDI2 4
0
TXD_FTDI2 4
0
CTS_FTDI2 4
0
RTS_FTDI2 4
Schematics
VDDIO
1
2
SWDIO 5
3
SWDCK 5
4
2,5 UP_TX 2,5
A
RD8
0
C
SWDCK
B
2,5 P14/P38 2,5
INSTALL POSITION A
I2C HEADER
J9 VDDIO
PBC04SAAN
1
2
SCL 2
3
SDA 2
4
TP3
RESET_N 2
TP4
P0 2
TP5
P14/P38 2,5
TP6
P24 2
TP7
P25 2
TP8
WP 2
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