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UM10895 QN9020 mini DK User Guide
Rev. 3 — 18 April 2018 User manual
Document information
Info Content Keywords mini DK, J-Link OB, UART, SWD, GPIO, LED, button, power supply,
buzzer
Abstract This user manual describes the features of the QN9020_MINIDK_Vx board.
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QN9020 mini DK user guide
Revision history
Rev Date Description
v.3 20180417 Updated Section 2.5, “QN9020 device”.
v.2 20160524 second release. Modifications: • Section 1.2 “Additional resource” updated. • Figure 5 updated. • Section 2.6 “GPIO interface” updated. • Section 3.1 “Schematics for QN9020 mini DK board” updated.
v.1 20150601 initial release
Contact information For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [email protected]
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User manual All information provided in this document is subject to legal disclaimers.
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QN9020 mini DK user guide
1. Introduction
This user manual describes the hardware details of the QN9020 mini Development Kit (DK).
1.1 Kit contents
The QN9020 mini development kit includes the following:
• QN9020 mini development board • QN9020 USB dongle • USB cable
1.2 Additional resource
For additional resources, visit https://www.nxp.com/products/wireless-connectivity/bluetooth-low-energy-ble/ultra-low-power-bluetooth-le-system-on-chip-solution:QN902X.
2. Hardware description
The QN9020 mini development board provides easy access to peripherals such as buttons, piezo buzzer and LED. The board also provides useful interfaces such as a USB port for UART communication and J-Link debug, and a GPIO/optional sensor board connector.
A USB dongle is a Bluetooth device powered by the QN9020. It acts as a master when communicating with the QN9020.
2.1 Hardware overview
The hardware blocks in the QN9020 mini DK, and the functional relationship of each main component, are shown in Figure 1.
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QN9020 mini DK user guide
The component layout on both the sides of the board is shown in Figure 2 and Figure 3. The detailed information of each component is listed in Ta ble 1.
Fig 2. The QN9020 board top view
GPIO/SENSOR CONNECTOR
GPIO/SENSOR CONNECTOR
OnBoard
ANTENNA
GPIO/SENSOR CONNECTOR RESET
Virtual UART UART USB JLink OB
PORT (ATSAM3U2C) SWD QN9020 RF MATCHING
LED1
POWER LED2
CR2032 BUTTON1 BUTTON2
aaa-018330
Fig 1. The QN9020 functional diagram
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QN9020 mini DK user guide
Table 1. QN9020 board components list
Number Name Description
1 J-Link OB ATSAM3U2C; used to offer SWD and UART interfaces for QN9020 debug and communication
2 connector optional; used for connecting sensor board
3 debug port debug port for ATSAM3U2CA
4 mini USB port power and communication port
5 power source select jumper used for power source selection; see Section 2.3
6 current measurement jumper used to measure the QN9020 device power consumption
7 LDO (TPS73630) 5 V to 3 V regulator
8 button1 used as input; see Section 2.9
9 button2 used as input; see Section 2.9
10 LED2 used as output; see Section 2.8
11 QN9020 GPIO port used for interface extension
12 LED1 used as output; see Section 2.8
13 SWD resistors zero ohm resistors; shorted for QN9020 device debug
14 UART interface used as communication port for QN9020 device
15 PCB antenna onboard Bluetooth antenna
16 QN9020 chip QN9020 chip
17 QN9020 reset button used for QN9020 hardware reset
18 CR2032 battery holder CR2032 battery holder
19 piezo buzzer buzzer: KLJ-1230
20 jumper used for power cycle ATSAM3U2CA
Fig 3. The QN9020 board bottom view
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QN9020 mini DK user guide
2.2 Default jumper settings on mini DK board The jumpers on QN9020 mini DK are factory set to power the board over the USB. The factory-set jumper and switch settings are shown in Ta ble 2.
Table 2. QN9020 mini DK board components list
Jumper Pins to be shorted using jumpers
Function
J11 2 and 3 USB powered
J12 1 and 2 VCC_QN9020 3.3 V
J13 1 and 2 VCC_MB 3.3 V
2.3 Power supply The QN9020 board has two power supply modes:
1. Bus-power mode: The board can be powered using the USB cable. The onboard LDO
is used to regulate output voltage to 3 V and supplies power to all parts on the board. 2. Battery-power mode: The CR2032 supplies power to QN9020 and optional sensor
connector when it is in battery-power mode. The J-Link OB still uses the LDO as power supply via USB cable. When using USB interface as a power supply, connect the jumper J11 pin 2 and pin 3; see Figure 4.
When using a CR2032 coin cell as a power supply, connect the jumper J11 pin 1 and pin 2; see Figure 5.
Fig 4. Connecting jumper J11 pin 2 and pin 3 to select USB as power supply
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QN9020 mini DK user guide
2.4 SEGGER J-Link OB part The SEGGER J-Link OB offers the SWD and UART interface. Users can download or update firmware into a QN9020 device by using the UART or SWD interface. Furthermore, it is convenient to debug the program for a QN9020 device using SWD interface.
To program or debug the QN9020 device using the SEGGER J-Link OB, the 0 Ω resistors R37, R38 should be soldered; see Figure 6.
Fig 6. Connect R37, R38
Fig 5. Connecting jumper J11 Pin1 and Pin 2 to select CR2032 coin cell as power supply
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QN9020 mini DK user guide
In order to use a USB to UART bridge for the QN9020 download, the solder bridge SB3, SB4 should be shorted; see Figure 7.
2.5 QN9020 device The QN9020 device is integrated with a BLE radio, controller, protocol stack and profile software, and a high performance MCU on a single chip; see Figure 8. There are two versions of the chip in mass production (version D and version E) for QN9020. Check the mark R180315 (version D) on the board to identify the version soldered.
Fig 8. The QN9020 device
Fig 7. Short R35, R36
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J9 J8 P3.0_ADC- P2.1_UART1-TX
J6 J7 P0.1_UART0-CTS P1.1_SPI1-MOSI
S
Fig 9. QN9020 version V7 GPIO connections
-6 -7 41B9&&B3.3 9 32.1B8$571-7;
3
6
DDD-022820
Fig 10. QN9020 version V8 GPIO connections
QN9020 mini DK user guide
2.6 GPIO interface In QN9020 mini development board version V7, the connectors J6, J7, J8 and J9 provide GPIO connection. The net name is shown in Figure 9.
In QN9020 mini development board version V8, connectors J6 and J7 provide GPIO connection, as shown in Figure 10.
2.7 QN9020 reset button The reset button is used to provide hardware reset to the QN9020 device. When programming the QN9020 using UART interface of SEGGER J-Link OB, the reset button should be pressed first to ensure that QN9020 is in boot mode. See Figure 11 for the detailed circuit.
1 2 32.0B8$571-5; 32.3B,2&-6'$ 32.2 3 4
32.5 32.4B,2&-6&/ 5 6 32.7B3:0 32.6B3:0 7 8
41B9&&B3.3 9 *1' 9 10 31.1B63,1-026, 31.0B63,1-0,62 11 12 31.3B63,1-&/. 31.2B63,1-&6 13 14
31.5B3:0 31.4 15 16 31.7B8$570-5; 31.6B3:0 17 18 41B9&&B3.3 9 *1' 19 20
1 2 *1' 33.5B63,0-&6 33.6 3 4
33.3B63,0-026, 33.4B63,0-&/. 5 6 33.1B$'&+ 33.2B63,0-0,62 7 8
Q5(6(7 33.0B$'&- 9 10 41B9&&B3.3 9 *1' 11 12
6:',2/706 6:&/./7&. 13 14 30.4 30.5 15 16
0.2B8$570-576 30.3 17 18 30.0B8$570-7; 30.1B8$570-&7 19 20
1 2
3 4
5 6
7 8
9 10
P1.0_SPI1-MISO P1.3_SPI1-CLK P1.2_SPI1-CS
P1.5_PWM P1.4
P1.7_UART0-RX P1.6_PWM
QN_VCC_3.3 V GND
aaa-018338
1 2
3 4
5 6
7 8
9 10
P0.0 UART0-TX P0.3 P0.2 UART0-RT
P0.5 P0.4
SWCLK/TCK SWDIO/TMS
GND QN_VCC_3.3 V
1 2
3 4
5 6
7 8
9 10
P2.0_UART1-RX P2.3_I2C-SDA P2.2
P2.5 P2.4_I2C-SCL
P2.7_PWM P2.6_PWM
QN_VCC_3.3 V GND
1 2
3 4
5 6
7 8
9 10
nRESET P3.2_SPI0-MISO P3.1_ADC+
P3.4_SPI0-CLK P3.3_SPI0-MOSI
P3.6 P3.5_SPI0-CS
GND QN_VCC_3.3 V
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QN_VIO
button 1 1 R15
SW1
2 P1.4
3 100 kΩ
button 2 1 2
3
P1.5 R18
SW2 100 kΩ
aaa-018341
Fig 13. Button circuit
QN9020 mini DK user guide
2.8 LED The QN9020 board offers two programmable LEDs, which are connected to the QN9020 device GPIO.
LED1 and LED2 are connected to GPIO P0.4 and P0.5 respectively. The connections are shown in Figure 12. The LEDs are powered-up when the corresponding GPIO outputs switch to logic LOW level.
2.9 Button The QN9020 board offers two buttons which are connected to QN9020 device GPIO. Button 1 and button 2 are connected to GPIO P1.4 and P1.5 respectively. See Figure 13 for detailed circuits.
When using the buttons, the GPIO P1.4 and P1.5 must be configured as inputs. Logic LOW input is applied to QN9020 when a button is pressed.
4
4
QN_VIO
LED1 D2 R20 P0.5
470 Ω
LED2 D3 R21 P0.4
470 Ω aaa-018340
Fig 12. LED circuit
SW3 reset button
nRESET 1 2
aaa-018339
Fig 11. QN9020 reset
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QN9020 mini DK user guide
2.10 Piezo buzzer The piezo buzzer receives input from GPIO P2.6; see Figure 14. Refer to KLJ-1230 data sheet for detailed information.
2.11 Optional sensor connector These connectors are used as an interface to connect the sensor board. The pin name definitions are shown in Figure 15.
2.12 Current measurement The jumper J12 is used to measure the QN9020 device current. In current test mode, the digital ammeter should be connected in series with J12. In the other modes, pin 1 and pin 2 of J12 are shorted. A jumper cap is used to short the pins.
QN_VIO QN_VIO
QN_VIO
J5
1
2
3
4
5
6
7
8
9
10
11
12
J10
1
2
3
4
5
P3.0_ADC-
P3.1_ADC+
P3.6
P2.3_I2C-SDA
P2.4_I2C-SCL
6
7
8
9
10
11
12
R16 P0.3
P0.4
P0.5
P3.3_SPIO-MOSI
P3.5_SPIO-CS
GND aaa-018343
Fig 15. Connecting the sensor board
B1
P2.6_PWM 1 2
buzzer aaa-018342
Fig 14. Piezo buzzer circuit
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QN9020 mini DK user guide
3. Appendix - Schematics and PCB layout
3.1 Schematics for QN9020 mini DK board
QN9020 mini DK board schematics have three parts: J-Link, power and QN9020. Figure 16, Figure 17 and Figure 18 are the same for all versions. The QN9020 schematic in version V7 is shown in Figure 19. In version V8, it is shown in Figure 20.
C22
0.1 μF R12
6.8 kΩ
C21
10 pF U1
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 MB_VCC_3.3V
TCKin
RTCKi
VCORE TDlin
TMSin
TCKout
TMSout
TDIout
TDOin ENSPI
MB_VCC_3.3V
TCKout
VDDANA ADVREF
GNDANA
AD12BVREF
PA22
PA30
PB3
PB4
VDDCORE1
PA13
PA14
PA15 PA16 PA17
PB16 PB15
PA18 PA19 PA20 PA21 PA23
VDDIO1
PA24
PA25 PA26
1 2
3 4
5
6
7
8 9
10
11
12 13
14
15 16
17
18
19 20
21
22
23 24
25
ATSAM3U2CA
75 74
73 72
71
70
69
68 67
66
65
64 63
62
61 60
59
58
57
56
55 54
53
52
51
XIN
XOUT
VDDPLL
GNDPLL
PB9
PB10 PB14 PB17
PB18 PB19 PB20 PB21 PB22
PB23
GND3 VDDIO3
VDDCORE3 PB24
XIN XOUT
VCORE
C20 0.1 μF
MB_VCC_3.3V
VCORE
NRST
TCK TMS TDO VDDIN
VDDOUT
PI_RST PI_TCK PI_TMS
PI_TDO
MB_VCC_3.3V
VCORE TDI
PI_TDI 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
SB5 SB6 C17
10 μF C18 C19 10 μF 0.1 μF
C16
10 nF
R19 1 kΩ
aaa-018546
Fig 16. J-Link schematic for all QN9020 mini DK versions, part I
PA
0 P
A1
PA
2
PA
3
PA
4
PA
5
PA
6
PA
7
VD
DC
OR
E2
GN
D2
VD
DIO
2
PA
8
PA
9
PA
10
PA
11
PA
12
FWV
P
ER
AS
E
TST
VD
DB
U
GN
DB
U
NR
STB
JTA
GS
EL
XO
UT3
2
XIN
32
PB
8 TR
STi
n
TRS
Tout
P
B7
PB
6
PB
5
PA
27
PB
13
PB
12
PB
11
PB
2
PB
1
PB
0
GN
D4
VD
DIO
4
VD
DC
OR
E4
PA
31
PA
29
PA
28
VD
DC
OR
E
GN
DU
TMI
DFS
DP
D
FSD
M
VD
DU
TMI
VB
G
DH
SD
M
DH
SD
P
EN
SP
I
TRE
Sin
TRE
Sou
t
RX
Dat
a
TXD
ata
VC
OR
E
MB
_VC
C_3
.3V
CTS
RTS
RX
0
TX0
MB
_VC
C_3
.3V
MB
_VC
C_3
.3V
VC
OR
E
LED
_RE
D1
LED
_RE
D2
VC
OR
E
TP1
MB
_VC
C_3
.3V
D
FSD
P
DFS
DM
MB
_VC
C_3
.3V
DH
SD
M
DH
SD
P
LED_RED1 D1 LED4 R13 MB_VCC_3.3V
220 Ω
LED_RED2 D1 LED4 R14 MB_VCC_3.3V
220 Ω XOUT
C2 18 pF
3 2
Y1 12 MΩ
C3 18 pF 4 1
XIN
JTAG interface to QN9020
R6 T_TRST TRSTout
0 Ω
TRSTin R9 T_TDI
TDIout 0 Ω
TDIin J2 R7 T_TMS SWDIO/TMS
TMSout SWDIO/TMS 150 Ω jump
TMSin J3 R8 T_TCK SWCLK/TCK
TCKout SWCLK/TCK 150 Ω jump
TCKin T_RTCK
RTCKin T_TDO
TDOin R10 T_RESET R11
TRESout nRESET 0 Ω 0 Ω
TRESin
MB_VCC_3.3V ATSAM3U2CA programming
interface
R5 R2 R3 R4 4.7 kΩ 4.7 kΩ 4.7 kΩ 4.7 kΩ
MB_VCC_3.3V PI_TMS
GND PI_TCK
VS
J4
1
2
PI_RST 10 9
PI_TDI 3 CON10C 8
4 5
7 6
PI_TDO
CTS
UART interface to QN9020 SB1
P0.2_UART0-RTS R26 0 Ω RTS
solder_bridge
SB2 P0.1_UART0-CTS
RXD
solder_bridge
SB3 P0.0_UART0-TX
TXD
solder_bridge
S P1.7_UART0-RX solder_bridg
MB_VCC_3.3V VCORE
C5 0.1 μF
C7 0.1 μF
C9 0.1 μF
C11 0.1 μF
C13 0.1 μF
C15 0.1 μF
C6 C8 C10 C12 C14 0.1 μF 0.1 μF 0.1 μF 0.1 μF 0.1 μF
MB_VCC_3.3V MB_VCC_3.3V
GND GND
VS VS
VBUS VBUS
R29 DFSON
VBUS 39 Ω 1 %
J1 S4
9 R28 S1
6 DFSOP
S3
1 2
3
4
5
7
V D- D+ ID G S2
39 Ω 1 %
DHSON DHSOP
IO2 U5
3 IO1 2
R30 8
VCC GND 4 1
1 MΩ miniusb_typeB PRTR5VOU2X
C36 C24
1 nF 0.1 μF
C23
10 μF
aaa-018344
Fig 17. J-Link schematic for all QN9020 mini DK versions, part II
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10895 Q
N9020 m
ini DK
user guide
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iconductors
UM
10895
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anual All inform
ation provided in this document is subject to legal disclaim
ers.
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ay 2016 ©
NXP Sem
iconductors N.V. 2016. All rights reserved.
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User manual Rev. 2 — 24 May 2016 14 of 21
U2 V5
J13 VBUS
VIN 1 5
VOUT MB_VCC_3.3V
R25 0 Ω
GND 2 TPS73633 C29
0.1 μF
C30 10 μF 16 V
JUMP2
TP2 EN
3 NR/FB C26
4 10 nF
J11 R24
GND GND QN_VIO
3 2
1 JUMP3
0 Ω BAT1
1 J12
2 QN_VCC_3.3V JUMP2
3 QN current test
battery Note: connect jumper J11 PIN2, 3 LDO as a power supply connect jumper J11 PIN1, 2 battery as a power supply aaa-018345
Fig 18. Power schematic for all mini DK versions
1 36
QN9020 GPIO
J6 P0.1_UART0-CTS
J7 P1.1_SPI1-MOSI
J8 P2.1_UART1-TX
J9 P3.0_ADC-
button 1
SW1
QN_VIO
BUZZER
1
SW2
SW3
2 P1.5_PWM R18
3 100 kΩ
RESET BUTTON reset button
1 2 nRESET
buzzer
aaa-018346
Fig 19. QN9020 schematic in QN9020 mini DK board V7 and below
J10 CONNECTOR FOR SENSOR BOARD
C37
100 nF
GND
13 14 15 16 17 18 19 20 21 22 23 24
P2.4_I2C-SCL P2_4 25 12 VSS1
P2.3_I2C-SDA P2_3 26 11 P0_0 P0.0_UART0-TX
C41 1 μF
P2.2 P2_2 27 10 P0_1 P0.1_UART0-CTS
P2.1_UART1-TX P2_1 28 9 P0_2 P0.2_UART0-RTS
nRESET nRESET RSTN 31 U6 QN9020
6 P0_5 P0.5 22 pF
C40 SWDIO/TMS 1.5 pF L1 1.1 nH
A1 antenna
C44 49 48 47 46 45 44 43 42 41 40 39 38 37 VCC VDD2
C38
C48
1 μF
QN_VCC_3.3 V QN_VCC_3.3 V QN9020 device
Y3 16 M
L5 15 nH L4 C43 10 μH
100 nF
R32
56 kΩ
100 nF SWCLK/TCK
P0_7 C46 VSS2 100 nF 2 35
L3
2.0 nH P0_6 RFP
3 34 XTAL2_32K RFN
22 pF Y2 32.768 kHz XTAL1_32K
4 33 L2
6.2 nH RVDD
C45 5 32
P0.4 P0_4
7 P0_3
P3_6 30
P2_0
C39 C42 C47 2.2 nF 8.2 pF 1.0 pF
P3.6
P0.3 8 29 P2.0_UART1-RX R31 100 kΩ
GND
USER LED
LED1 D2 R20 P0.5
470 Ω
LED2 D3 R21 P0.4
470 Ω
QN_VIO QN_VIO
J5 1 2 3 4 5 6
7 8 9 10 11 12
QN_VIO 1 2 3 4 5 6
7 8 9
10 11 12
P3.0_ADC- P3.1_ADC+ P3.6 P2.3_I2C-SDA P2.4_I2C-SCL
R16 0 Ω R17
0 Ω
P0.3 P0.4 P0.5 P3.3_SPIO-MOSI P3.5_SPIO-CS GND
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N9020 m
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iconductors
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ay 2016 ©
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iconductors N.V. 2016. All rights reserved.
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GN
D
VDD
1 D
CC
P1
.7_U
ART0
-RX
P1
_7
VSS3
P3_0
P1
_6
P1.6
_PW
M
P3.0
_AD
C-
P1_5
P1
.5_P
WM
P3
_1
P3.1
_AD
C+
P1_4
P1
.4
P3_2
P3
.2_S
PIO
MIS
O
P1_3
P1
.3_S
PI1-
CLK
P3
_3
P3.3
_SPI
OM
OSI
P1
_2
P1.2
_SPI
1-C
S P3
_4
P3.4
_SPI
OC
LK
P1_1
P1
.1_S
PI1-
MO
SI
P3_5
P3
.5_S
PIO
CS
P1
_0
P1.0
_SPI
1-M
ISO
XT
AL1
P2_7
P2
.7_P
WM
XT
AL2
P2_6
P2
.6_P
WM
VD
D3
P2_5
P2
.5
REX
T
1 2
3 4
5 6
7 8
9 10
P0.0 UART0-TX P0.3 P0.2 UART0-RTS
P0.5 P0.4
SWCLK/TCK SWDIO/TMS
GND QN_VCC_3.3 V
1 2
3 4
5 6
7 8
9 10
P1.0_SPI1-MISO P1.3_SPI1-CLK P1.2_SPI1-CS
P1.5_PWM P1.4
P1.7_UART0-RX P1.6_PWM
QN_VCC_3.3 V GND
1 2
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UM
10895 Q
N9020 m
ini DK
user guide
NXP Sem
iconductors
UM
10895
User m
anual All inform
ation provided in this document is subject to legal disclaim
ers.
Rev. 2 — 24 M
ay 2016 ©
NXP Sem
iconductors N.V. 2016. All rights reserved.
16 of 21
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UM10895 NXP Semiconductors
UM10895
User manual All information provided in this document is subject to legal disclaimers.
Rev. 3 — 18 April 2018 © NXP Semiconductors N.V. 2018. All rights reserved.
17 of 21
J10
P0.0-P0.7 P3.0-P3.6
J5
L3 C46 U5 C16
C10 C40 Y2 C45
R19
VBAT J13
R36 RXD R35 TXD
TP1 R34 CTS R33 RTS
R26
C12 R37
C26 R25 C24
R11 R6
R20 D2
R21 D3
SWDIO
R38 SWCLK
LED1
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R24 BUTTON1 BUTTON2 SW1 SW2
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aaa-018347
Fig 21. Silk screen top
C41
R31
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37
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D1 R
13 R
28 R14
R29
J1
QN9020 mini DK user guide
3.2 PCB layout
L
5 C4
C47
L4 C
42 C
39
L
2 L1
U6
R12 C21 C22 C14 C15 C9
QN
9020_MIN
IDK
_V7
R150121
J8 A1
J9
QN
_RST
J6 J7
SW3 C
17 C
18 G
ND
P3.5 R
23 R
27 P3.3
R22 P0.5
R17 P0.4
R16 P0.3
C6
R9
R7
R8
C19
C13
C8
C11
C20
C5
Y1 SC
L U
1
SDA
C
3 SEG
GER
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C
P3.1
P3.0 VC
C
R30
C36
R2 R
4 R3 R
5 U
2 C
29 C
30 J11 VC
C J12
J4
UM10895 NXP Semiconductors
UM10895
User manual All information provided in this document is subject to legal disclaimers.
Rev. 3 — 18 April 2018 © NXP Semiconductors N.V. 2018. All rights reserved.
18 of 21
QN9020 mini DK user guide
4. Abbreviations
Table 3. Abbreviations
Acronym Description
UART Universal Asynchronous Receiver Transmitter
DK Development Kit
LDO Low DropOut
SWD Serial Wire Debug
PCB Printed-Circuit Board
BLE Bluetooth Low Energy
MCU MicroController Unit
GPIO General Purpose Input Output
ISP In System Programming
USB Universal Serial Bus
aaa-018348
Fig 22. Silk screen bottom
UM10895 NXP Semiconductors
UM10895
User manual All information provided in this document is subject to legal disclaimers.
Rev. 3 — 18 April 2018 © NXP Semiconductors N.V. 2018. All rights reserved.
19 of 21
QN9020 mini DK user guide
5. Legal information
5.1 Definitions Draft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information.
5.2 Disclaimers Limited warranty and liability — Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. NXP Semiconductors takes no responsibility for the content in this document if provided by an information source outside of NXP Semiconductors.
In no event shall NXP Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory.
Notwithstanding any damages that customer might incur for any reason whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors.
Right to make changes — NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof.
Suitability for use — NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors and its suppliers accept no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk.
Applications — Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification.
Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products, and NXP Semiconductors accepts no liability for any assistance with applications or customer product
design. It is customer’s sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products.
NXP Semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customer(s). Customer is responsible for doing all necessary testing for the customer’s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). NXP does not accept any liability in this respect.
Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from competent authorities.
Evaluation products — This product is provided on an “as is” and “with all faults” basis for evaluation purposes only. NXP Semiconductors, its affiliates and their suppliers expressly disclaim all warranties, whether express, implied or statutory, including but not limited to the implied warranties of non-infringement, merchantability and fitness for a particular purpose. The entire risk as to the quality, or arising out of the use or performance, of this product remains with customer.
In no event shall NXP Semiconductors, its affiliates or their suppliers be liable to customer for any special, indirect, consequential, punitive or incidental damages (including without limitation damages for loss of business, business interruption, loss of use, loss of data or information, and the like) arising out the use of or inability to use the product, whether or not based on tort (including negligence), strict liability, breach of contract, breach of warranty or any other theory, even if advised of the possibility of such damages.
Notwithstanding any damages that customer might incur for any reason whatsoever (including without limitation, all damages referenced above and all direct or general damages), the entire liability of NXP Semiconductors, its affiliates and their suppliers and customer’s exclusive remedy for all of the foregoing shall be limited to actual damages incurred by customer based on reasonable reliance up to the greater of the amount actually paid by customer for the product or five dollars (US$5.00). The foregoing limitations, exclusions and disclaimers shall apply to the maximum extent permitted by applicable law, even if any remedy fails of its essential purpose.
Translations — A non-English (translated) version of a document is for reference only. The English version shall prevail in case of any discrepancy between the translated and English versions.
5.3 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners.
UM10895 NXP Semiconductors
UM10895
User manual All information provided in this document is subject to legal disclaimers.
Rev. 3 — 18 April 2018 © NXP Semiconductors N.V. 2018. All rights reserved.
20 of 21
QN9020 mini DK user guide
6. Tables
Table 1. QN9020 board components list .......................... 5 Table 2. QN9020 mini DK board components list ............. 6
Table 3. Abbreviations .................................................... 18
7. Figures
Fig 1. The QN9020 functional diagram ........................... 4 Fig 2. The QN9020 board top view ................................. 4 Fig 3. The QN9020 board bottom view ............................ 5 Fig 4. Connecting jumper J11 pin 2 and pin 3
to select USB as power supply .............................. 6 Fig 5. Connecting jumper J11 Pin1 and Pin 2 to select
CR2032 coin cell as power supply ........................ 7 Fig 6. Connect R37, R38 ................................................. 7 Fig 7. Short R35, R36 ..................................................... 8 Fig 8. The QN9020 device ............................................... 8 Fig 9. QN9020 version V7 GPIO connections .................. 9 Fig 10. QN9020 version V8 GPIO connections .................. 9 Fig 11. QN9020 reset ...................................................... 10 Fig 12. LED circuit ........................................................... 10 Fig 13. Button circuit ........................................................ 10 Fig 14. Piezo buzzer circuit ............................................. 11 Fig 15. Connecting the sensor board ............................... 11 Fig 16. J-Link schematic for all QN9020 mini DK
versions, part I ..................................................... 12 Fig 17. J-Link schematic for all QN9020 mini DK
versions, part II .................................................... 13 Fig 18. Power schematic for all mini DK versions ............ 14 Fig 19. QN9020 schematic in QN9020 mini DK
board V7 and below ............................................ 15 Fig 20. QN9020 schematic in QN9020 mini DK
board V8 .............................................................. 16 Fig 21. Silk screen top ..................................................... 17 Fig 22. Silk screen bottom ............................................... 18
UM10895 NXP Semiconductors
QN9020 mini DK user guide
8. Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
1.1 Kit contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Additional resource. . . . . . . . . . . . . . . . . . . . . . 3 2 Hardware description . . . . . . . . . . . . . . . . . . . . 3 2.1 Hardware overview. . . . . . . . . . . . . . . . . . . . . . 3 2.2 Default jumper settings on mini DK board . . . . 6 2.3 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.4 SEGGER J-Link OB part . . . . . . . . . . . . . . . . . 7 2.5 QN9020 device. . . . . . . . . . . . . . . . . . . . . . . . . 8 2.6 GPIO interface . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.7 QN9020 reset button . . . . . . . . . . . . . . . . . . . . 9 2.8 LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.9 Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.10 Piezo buzzer. . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.11 Optional sensor connector . . . . . . . . . . . . . . . 11 2.12 Current measurement. . . . . . . . . . . . . . . . . . . 11 3 Appendix - Schematics and PCB layout . . . . 12 3.1 Schematics for QN9020 mini DK board . . . . . 12 3.2 PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 18 5 Legal information. . . . . . . . . . . . . . . . . . . . . . . 19 5.1 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 5.2 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 5.3 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 19 6 Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 7 Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 8 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’.
© NXP Semiconductors N.V. 2018. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected]
Date of release: April 2018 Document identifier: UM10895