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| CC3220 Datasheet, PDF (69/84 Pages) Texas Instruments – SimpleLink Wi-Fi Wireless and Internet-of-Things Solution, a Single-Chip Wireless MCU | |||
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www.ti.com
CC3220
SWAS035A â SEPTEMBER 2016 â REVISED FEBRUARY 2017
6.1.2
Typical Application SchematicâCC3220x Preregulated, 1.85-V Mode
Figure 6-2 shows the typical application schematic using the CC3220x in preregulated, 1.85-V mode of operation. For addition information
on this mode of operation please contact your TI representative.
1.85V
1.85V
1.85V
C3
4.7μF
GND
C4
4.7μF
GND
C5
4.7μF
C2
0.1μF
GND
GND
1.85V
C11
0.1μF
GND
C12
0.1μF
C13
0.1μF
C14
C15
22μF
1μF
GND
GND
GND
GND
L2
1.85V
PIN 45 and 46:
For CC3220S and CC3220R parts, leave
pin 46 un-connected (DNP L5 and R8).
Pin 45 can be used as GPIO_31 if a
supply is provided on pin47
C16
10μF
2.2uH
C17
0.1μF
C18
0.1μF
GND
L3
10uH
GND
PIN 47:
For CC3220S, CC3220R
device connect to VBAT
and add 0.1uF cap
C19
10μF
C20
0.1μF
C21
0.1μF
GND
GND
GND
1.85V
J1
2
1
4
3
6
5
R3
R4
R5
100k
100k
2.7k
C6
0.1μF
GND
Optional:
Consider adding extra decoupling
capacitors if the battery cannot source
the peak currents.
1.85V
C7
100μF
C8
100μF
GND
GND
U2
10 VIN_IO1
54 VIN_IO2
44 VIN_DCDC_DIG
39 VIN_DCDC_PA
37 VIN_DCDC_ANA
38 DCDC_ANA_SW
48 VDD_ANA1
36
25
LDO_IN1
LDO_IN2
40 DCDC_PA_SW_P
41 DCDC_PA_SW_N
42 DCDC_PA_OUT
33 VDD_PA_IN
43 DCDC_DIG_SW
9 VDD_DIG1
56 VDD_DIG2
45 DCDC_ANA2_SW_P
46 DCDC_ANA2_SW_N
47 VDD_ANA2
49 VDD_RAM
24 VDD_PLL
27 NC
28 NC
26 NC
35
34
SOP0
SOP1
21 SOP2
19 TCK
20 TMS
16 TDI
17 TDO
CC3220SF12ARGKR
RESET 32
RF_BG 31
FLASH_SPI_CS 14
FLASH_SPI_DIN 13
FLASH_SPI_DOUT 12
FLASH_SPI_CLK 11
GPIO0 50
GPIO1
GPIO2
55
57
GPIO3 58
GPIO4 59
GPIO5 60
GPIO6 61
GPIO7 62
GPIO8 63
GPIO9
GPIO10
64
1
GPIO11 2
GPIO12 3
GPIO13 4
GPIO14 5
GPIO15 6
GPIO16 7
GPIO17
GPIO22
8
15
GPIO28 18
GPIO30 53
RTC_XTAL_P 51
RTC_XTAL_N 52
WLAN_XTAL_P 23
WLAN_XTAL_N 22
ANTSEL2 30
ANTSEL1 29
GND_TAB 65
GND
R1
10k
C1
1μF
GND
1.85V
R2
100k
C10
0.1μF
GND
CC_GPIO_00
CC_GPIO_01
CC_GPIO_02
CC_GPIO_03
CC_GPIO_04
CC_GPIO_05
CC_GPIO_06
CC_GPIO_07
CC_GPIO_08
CC_GPIO_09
CC_GPIO_10
CC_GPIO_11
CC_GPIO_12
CC_GPIO_13
CC_GPIO_14
CC_GPIO_15
CC_GPIO_16
CC_GPIO_17
CC_GPIO_22
CC_GPIO_28
CC_GPIO_30
CC_nReset
CC_GPIO_01
CC_GPIO_02
SOP0
SOP2
FL1
1 IN
OUT 3
GND 2
GND 4
GND
U1
8 VCC
1 CS
6 SCLK
5 SI/SIO0
2 SO/SIO1
3 WP/SIO2
7 RESET/SIO3
GND 4
Antenna match. Pi
network might be
required depending on
E1
type of antenna.
L1
3.3nH
C9
0.5pF GNDGND
GND
GND
TP1
TP2
FLASH PROGRAMMING
INTERFACE
TP3
Add provision on the board to isolate
TP4
GPIO_01 and GPIO_02 while programming
TP5
C24
6.2pF
GND
Y2
40 MHz
Y1
32.768kHz
2
1
C22
10pF
C23
10pF
C25 GND
6.2pF
GND
GND
CC_JTAG_TDO
CC_JTAG_TDI
CC_JTAG_TMS
JTAG
GND
CC_JTAG_TCK
R6
100k
GND
GND
Figure 6-2. CC3220x Preregulated 1.85-V Mode Application Circuit
Copyright © 2016â2017, Texas Instruments Incorporated
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Product Folder Links: CC3220
Applications, Implementation, and Layout
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