CC3120 Datasheet, PDF (41/57 Pages) Texas Instruments – SimpleLink Wi-Fi Wireless Network Processor Internet-of-Things Solution for MCU Applications

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CC3120
SWAS034 – FEBRUARY 2017
Figure 6-1 shows the typical application schematic using the CC3120R device in the wide-voltage mode of operation. For a full operation reference
design, refer to the BoosterPack that uses the CC3120R device (see CC3120 SimpleLink™ and Internet of Things Hardware Design Files).
VBAT_CC
Optional:
Consider adding extra decoupling
capacitors if the battery cannot source
the peak currents.
VBAT_CC
VBAT_CC
C2
100µF
C3
100µF
GND
GND
#37
#39
#44 #54 #10
C4
4.7µF
C5
4.7µF
C6
4.7µF
C7
0.1µF
C8
0.1µF
GND
GND
GND
GND GND
VDD_FL
U2
FL1
1 _IN
OUT ³
50 Ohm
GND ²
GND ⁴
VBAT_CC
Antenna match. Pi
network might be
required depending on
E1
type of antenna.
L1
3.3nH
C1
0.5pF GNDGND
R2
100k
R1
10k
C9
0.1µF
GND
GND
U1
8 _VCC
1 _CS
6
5
SCLK
SI/SIO0
2 _SO/SIO1
3 _WP/SIO2
7 _RESET/SIO3
GND
GND ⁴
C10
10µF
GND
C11
0.1µF
GND
C12 C13
C14
VDD_ANA
48
47
VDD_PA
33
VDD_DIG_CC
9
56
VDD_PLL
24
VDD_RAM 49
C15
C16
VBAT_CC
1µF 0.1µF 0.1µF 0.1µF 0.1µF
37
39
44
GND GND GND GND GND
10
54
L2
38
2.2uH
36
25
C17
10µF
C18
0.1µF
C19
0.1µF
L3
PA_SWP 40
PA_SWN 41
VDD_PA 42
L4
GND
GND
GND
C20
22µF
C21
22µF
C22
10µF
43
2.2uH
45
46
C23 GND GND GND
RTC_XTAL_N 52
GND
10pF
C24
Y1
32.768kHz
RTC_XTAL_P
51
VDD_ANA1
VDD_ANA2
VDD_PA_IN
VDD_DIG1
VDD_DIG2
VDD_PLL
VDD_RAM
VIN_DCDC_ANA
VIN_DCDC_PA
VIN_DCDC_DIG
VIN_IO1
VIN_IO2
DCDC_ANA_SW
LDO_IN1
LDO_IN2
DCDC_PA_SW_P
DCDC_PA_SW_N
DCDC_PA_OUT
DCDC_DIG_SW
DCDC_ANA2_SW_P
DCDC_ANA2_SW_N
RTC_XTAL_N
RTC_XTAL_P
VBAT_CC
10pF
J1
2
1
4
3
6
5
VBAT_CC
R12
100k
R9
100k
R10
100k
R11
2.7K
35 _SOP0
34 _SOP1
21 _{SOP2/TCXO_EN}
32 _RESET
3 _RESERVED
19 _RESERVED
29 _RESERVED
30 _RESERVED
CC3120RNMARGKR
RF_BG ³¹
FLASH_SPI_CLK ^{11 SFL_CLK}
FLASH _SPI_CS
FLASH _SPI_MISO
FLASH_SPI_MOSI
14
13
12
SFL_CS
SFL_MISO
SFL_MOSI
UART1_CTS ⁶¹
UART1_RTS ⁵⁰
UART1_TX ⁵⁵
UART1_RX ⁵⁷
VBAT_CC
CC_UART1_CTS
CC_UART1_RTS
CC_UART1_TX
CC_UART1_RX
R3
100k
R4
100k
GND
CC_UART1_CTS
CC_UART1_RTS
CC_UART1_TX
CC_UART1_RX
TEST_58 ⁵⁸
TEST_59 ⁵⁹
TEST_60
TEST_62
60
62
CC_WLRS232_TX
TP1
CC_WLRS232_RX
TP2
CC_WL_UART_TX TP3
CC_NWP_UART_TX TP4
R5 R62 is needed only if
100k UART is used as host
interface.
Flash Programming / Host
Control
NC ⁴
GND
HOST_SPI_CLK ⁵
HOST_SPI_CS
HOST_SPI_MISO
8
7
HOST_SPI_MOSI ⁶
HOST_INTR ¹⁵
HIB ²
WLAN_XTAL_P ²³ _{WLAN_XTAL_P}
WLAN_XTAL_N ^{22 WLAN_XTAL_N}
NC
NC
1
16
NC ¹⁷
NC ¹⁸
NC ²⁰
NC
NC
26
27
NC
NC
28
53
NC ⁶³
NC ⁶⁴
PAD ⁶⁵
GND
CC_SPI_CLK
CC_SPI_CS
CC_SPI_DOUT
CC_SPI_DIN
CC_IRQ
CC_nHIB
R7
100k
CC_SPI_CLK
CC_SPI_CS
CC_SPI_DOUT
CC_SPI_DIN
CC_IRQ
CC_nHIB
HOST INTERFACE
(Ensure the nHIB line does
not float at any time.)
R6
100k
GND
GND
C25
6.2pF
Y2
40 MHz
C26
6.2pF
GND
GND
GND
GND
R13
100k
C27
0.1µF
GND
Copyright © 2017, Texas Instruments Incorporated
GND
Copyright © 2017, Texas Instruments Incorporated
Figure 6-1. CC3120R Wide-Voltage Mode Application
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Applications, Implementation, and Layout
41