Data Sheet

ISM4343 Specification
DOC-DS-20074-5.3
Inventek Systems
Page 41
11 ISM4343-WBM-L151 Hardware Design Recommendations
11.1 Application Circuit – Single Antenna
Reference Matching circuit:
1. RF trace impedance control: 50ohm.
2. See Inventek for reference schematic for antenna
3. Do not Connect Xtal pins 52 and 53
VBAT
VDD_3V3
QUADSPI _BK1_IO3
VDD_3V3
JP38
SMA
1
1
2
2
3
3
4
4
5
5
C83 2.2uF
C84
DNI
R104
10pF
C85
DNI
JP39
header3
1
2
3
VDD_3V3
Y3
DNI
C86
DNI
C87 DNI
C88
2.2uF
C89
2.2uF
C90 2.2uF
BT_GPIO_5
BT_GPIO_4
BT_GPIO_3
C91
2.2uF
JP40
header3
1
2
3
VDD_3V3
USART1_TX
USART1_CTS
USART1_RTS
USART1_RX
BT_PCM_OUT
BT_PCM_IN
BT_PCM_SYNC
BT_PCM_CLK
MICRO_GPI O_26
QUADSPI _BK1_NCS
VDD_U SB
MICRO_GPI O_0
QUADSPI _BK2_MCS
MICRO_GPI O_30
MICRO_GPI O_16
C96
2.2uF
VDD_3V3
VDD_3V3
QUADSPI _CLK
MICRO_GPI O_5
BT_HOST_WAKE
QUADSPI _BK1_IO2
MICRO_GPI O_28
MICRO_GPI O_3
MICRO_GPI O_34
USART6_RX_I2S2_CK
USART6_TX_I2S2_MCK
QUADSPI _BK1_IO1
QUADSPI _BK1_IO0
MICRO_GPI O_32
MICRO_GPI O_33
I2S2_SD
VDD3V3_W iFi_IO
I2S2_WS
VDD3V3_PA
VDD_3V3_W IFI_IN
MICRO_R ST_N
I2C1_SC L
I2C2_SD A
I2C2_SC L
I2C1_SD A
MICRO_I 2S_DI QUADSPI _BK2_IO1
QUADSPI _BK2_IO0
SPI4_MOSI
SPI4_MISO
SPI4_SCK
SPI4_NSS
MICRO_GPI O_27
MICRO_GPI O_25
MICRO_J TAG_TMS
MICRO_J TAG_TRSTN
MICRO_J TAG_TDO
MICRO_J TAG_TDI
MICRO_J TAG_TCK
MICRO_W KUP
MICRO_SPI _NSS
MICRO_AD C_IN3
MICRO_AD C_IN2
MICRO_AD C_IN1
MICRO_SPI _MOSI
MICRO_SPI _MISO
MICRO_SPI _SCK
QUADSPI _BK2_IO3
QUADSPI _BK2_IO2
PC13
C97 2.2uF
C98 2.2uF
U10
Module Pin Out
VDD3V3_W iFi
42
MCIRO_SPI2_NSS
84
GND
51
NC2
17
I2S2_WS
143
MIC RO_I2S_DI
111
NC18
110
GND
27
I2C1_SC L
102
I2C1_SD A
103
GND
34
VDD3V3_W iFi_IO
28
SPI4_MOSI
14
NC24
139
MIC RO_GPIO_27
86
NC3
19
MIC RO_GPIO_25
87
NC25
140
NC9
88
BOOT0
104
BOOT1
79
I2S2_SD
69
USART 6_RX_I2S2_CK
93
USART 6_TX_I2S2_MCK
92
NC15
100
ANT
1
MCIRO_SPI2_SCK
85
NC11
95
SPI4_NSS
11
SPI4_SCK
12
VDD3V3_W iFi
43
I2C2_SD A
83
NC5
40
NC6
56
GND
7
I2C2_SC L
82
SPI4_MI SO
13
GND
41
NC23
138
GND
49
GND
47
NC13
97
OSC32_IN
52
GND
54
OSC32_OUT
53
VDD3V3_PA
3
NC8
63
GND
23
VDD3V3_PA
4
QUADSPI _BK2_IO1
81
QUADSPI _BK2_IO0
80
MIC RO_SPI2_MISO
21
MICRO_GPI O_28
142
MICRO_SPI _MISO
76
MIC RO_WKUP
119
MIC RP_GPIO_30
108
NC17
109
NC16
105
GND
15
RF_SW_CTRL
126
NC7
62
NC20
127
GND
29
QUADSPI _BK1_IO3
50
GND
18
NC12
96
MIC RO_SPI2_MOSI
22
NC14
98
GND
2
GND
72
NC1
16
NC26
141
USART 1_CTS
32
USART 1_TX
30
MIC RO_RST_N
117
MICRO_AD C_IN1
150
MICRO_SPI _NSS
74
VDD_3V3_3
24
VBAT
59
USART 1_RX
31
MICRO_SPI _SCK
75
MIC RO_JTAG_TMS
35
NC21
131
MICRO_GPI O_26
137
NC4
26
QUADSPI _BK1_NCS
133
VDD_U SB
90
GND
91
NC10
89
VDD_3V3
65
MICRO_AD C_IN2
121
MICRO_AD C_IN3
122
QUADSPI _BK1_IO0
118
QUADSPI _BK2_IO2
124
USART 1_RTS
33
BT_PCM_OUT
145
BT_PCM_IN
146
BT_PCM_SYNC
144
BT_PCM_CLK
55
MIC RO_SPI_MOSI
8
MIC RO_JTAG_TRSTN
46
MIC RO_JTAG_TDO
45
MIC RO_JTAG_TCK
37
MIC RO_JTAG_TDI
38
NC22
136
MICRO_GPI O_5
125
QUADSPI _CLK
9
BT_HOST_WAKE
57
MICRO_GPI O_16
128
QUADSPI _BK2_IO3
78
MIC RO_GPIO_0
106
QUADSPI _BK2_NCS
107
GND
64
QUADSPI _BK1_IO2
68
QUADSPI _BK1_IO1
67
VDD_3V3_2
48
GND
60
PC13
147
GND
132
GND
94
GND
73
GND
58
GND
25
BT_GPIO_5
130
BT_GPIO_4
129
BT_GPIO_3
20
GND
113
GND
123
GND
10
GND
5
GND
135
VDD_3V3_5
6
GND
61
GND
134
GND
148
GND
149
GND
71
GND
151
GND
77
GND
36
GND
44
GND
99
GND
39
GND
101
GND
114
GND
115
GND
116
GND
66
GND
120
GND
70
GND
112