NXP QN902X User guide

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Model
QN902X
Type
User guide

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UM10895
QN9020 mini DK user guide
Rev. 4 — 12 November 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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User manual Rev. 4 — 12 November 2018 2 of 22
Contact information
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
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QN9020 mini DK user guide
Revision history
Rev Date Description
v.4 20181112 fixed
Figure 10.
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
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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
http://www.nxp.com/products/microcontrollers-and-processors/more-processors/applicati
on-specific-mcus-mpus/bluetooth-low-energy-ble:BLUETOOTH-LOW-ENERGY-BLE
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
Table 1.
Fig 1. The QN9020 functional diagram
Fig 2. The QN9020 board top view
aaa-018330
GPIO/SENSOR CONNECTOR GPIO/SENSOR CONNECTOR
GPIO/SENSOR CONNECTORBUTTON2
LED1
LED2
BUTTON1
RESET
Virtual UART
POWER
OnBoard
ANTENNA
RF
MATCHING
JLink OB
(ATSAM3U2C)
UART
SWD
QN9020
CR2032
USB
PORT
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QN9020 mini DK user guide
Fig 3. The QN9020 board bottom view
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
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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
Table 2.
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.
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
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 resistors
R37, R38 should be soldered; see
Figure 6.
Fig 5. Connecting jumper J11 Pin1 and Pin 2 to select CR2032 coin cell as power supply
Fig 6. Connect R37, R38
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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.
Fig 7. Short R35, R36
Fig 8. The QN9020 device
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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.
Fig 9. QN9020 version V7 GPIO connections
Fig 10. QN9020 version V8 GPIO connections
aaa-018338
1
nRESET
J9
P3.0_ADC-
2
34
56
78
910
P3.1_ADC+P3.2_SPI0-MISO
P3.3_SPI0-MOSIP3.4_SPI0-CLK
P3.5_SPI0-CSP3.6
QN_VCC_3.3 VGND
1
P0.0 UART0-TX
J6
P0.1_UART0-CTS
2
34
56
78
910
P0.2 UART0-RTSP0.3
P0.4P0.5
SWDIO/TMSSWCLK/TCK
QN_VCC_3.3 VGND
1
P2.0_UART1-RX
J8
P2.1_UART1-TX
2
34
56
78
910
P2.2P2.3_I2C-SDA
P2.4_I2C-SCLP2.5
P2.6_PWMP2.7_PWM
GNDQN_VCC_3.3 V
1
P1.0_SPI1-MISO
J7
P1.1_SPI1-MOSI
2
34
56
78
910
P1.2_SPI1-CSP1.3_SPI1-CLK
P1.4P1.5_PWM
P1.6_PWMP1.7_UART0-RX
GNDQN_VCC_3.3 V
Fig 11. QN9020 reset
aaa-018339
SW3
reset button
nRESET
12
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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.
Fig 12. LED circuit
aaa-018340
R20
LED1
LED2
D2
D3
R21
470 Ω
470 Ω
QN_VIO
P0.5
P0.4
Fig 13. Button circuit
aaa-018341
R15
P1.4
P1.5
button 1
SW1
2
3
1
4
R18
100 kΩ
100 kΩ
QN_VIO
button 2
SW2
2
3
1
4
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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.
Fig 14. Piezo buzzer circuit
aaa-018342
buzzer
12
P2.6_PWM
B1
Fig 15. Connecting the sensor board
aaa-018343
1
J5
QN_VIO
QN_VIO
2
3
4
5
QN_VIO
P3.0_ADC-
J10
1
2
3
4
5
P3.1_ADC+
P3.6
P2.3_I2C-SDA
P2.4_I2C-SCL
6
7
8
9
10
P0.3
R16
0 Ω
R22
0 Ω
R17
0 Ω
P0.4
P0.5
P3.3_SPIO-MOSI
P3.5_SPIO-CS
11
12
GND
6
7
8
9
10
11
12
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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.
Fig 16. J-Link schematic for all QN9020 mini DK versions, part I
aaa-018546
SB6SB5
PB17
68
67
66
65
64
PB18
PB19
PB20
PB21
63
PB22
VDDPLL
73
72
71
70
69
GNDPLL
XIN
75
74
XOUT
PB9
PB10
PB14
NRST
57
56
55
54
53
TCK
TMS
TDO
PI_RST
PI_TCK
PI_TMS
PI_TDO
PI_TDI
C17
10 µF
C16
10 nF
C20
0.1 µF
C21
10 pF
C22
0.1 µF
R12
6.8 kΩ
R19
1 kΩ
C18
10 µF
C19
0.1 µF
VDDIN
52
51
VDDOUT
MB_VCC_3.3V
VCORE
MB_VCC_3.3V
VCORE
TDI
PB23
62
61
60
XIN
XOUT
VCORE
59
58
GND3
VDDIO3
VDDCORE3
PB24
ATSAM3U2CA
PB4
8
9
10
11
12
39 40 41 42 43 44 45 46 47 48 49 50
87 86 85 84 83 82 81 80 79 78 77 76
VDDCORE1
PA13
VCORE
TDlin
TMSin
TCKout
TMSout
TDIout
TCKout
TDOin
ENSPI
MB_VCC_3.3V
PA14
PA15
GNDANA
3
4
5
6
7
AD12BVREF
VDDANA
MB_VCC_3.3V
TCKin
RTCKin
1
2
ADVREF
PA22
PA30
PB3
PA20
19
20
21
22
23
PA21
PA23
VDDIO1
PA24
24
PA25
25
PA26
PA17
14
15
16
17
18
PB16
13
PA16
PB15
PA18
PA19
GNDBU
NRSTB
JTAGSEL
XOUT32
XIN32
PA12
FWVP
PA10
PA11
ERASE
TST
VDDBU
TX0
MB_VCC_3.3V
TP1
MB_VCC_3.3V
28 29 30 31 32 33 34 35 36 37 38
GND2
VDDIO2
PA8
PA9
PA4
PA5
PA2
PA3
26 27
PA0
PA1
TRSTin
TRSTout
TRESin
PA6
PA7
VDDCORE2
MB_VCC_3.3V
CTS
RTS
RX0
TRESout
RXData
TXData
VCORE
DFSDM
VDDUTMI
VBG
DHSDM
DHSDP
MB_VCC_3.3V
DHSDM
DHSDP
PA29
PA28
VDDCORE4
88
VDDIO4
PA31
VDDCORE
VCORE
GNDUTMI
DFSDP
DFSDM
DFSDP
LED_RED1
VCORE
MB_VCC_3.3V
ENSPI
LED_RED2
99 98 97 96 95 94 93 92 91 90 89
PB2
PB1
PB0
GND4
PB5
PA27
PB7
100
U1
PB8
PB6
PB13
PB12
PB11
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Fig 17. J-Link schematic for all QN9020 mini DK versions, part II
miniusb_typeB
PRTR5VOU2X
J1
S1S4
69
1
2
3
4
5
78
U5
IO1
DFSON
DFSOP
DHSON
DHSOP
IO2
23
GNDVCC
14
V
D-
D+
ID
G
S2S3
CON10C
1
J4
10
MB_VCC_3.3V
29
PI_TMS
MB_VCC_3.3V
LED_RED1
MB_VCC_3.3V
D1 LED4
R13
220 Ω
LED_RED2
XOUT
XIN
MB_VCC_3.3V
D1 LED4
R14
220 Ω
Y1
12 MΩ
38
GND
47
PI_TCK
56
VS
PI_TDO
PI_TDI
PI_RST
C5
0.1 µF
R30
1 MΩ
R29
39 Ω
1 %
R28
39 Ω
1 %
C36
1 nF
C24
0.1 µF
C23
10 µF
MB_VCC_3.3V
VBUS
C6
0.1 µF
C7
0.1 µF
C8
0.1 µF
C9
0.1 µF
C10
0.1 µF
C11
0.1 µF
VCORE
ATSAM3U2CA
programming
interface
MB_VCC_3.3V
aaa-018344
MB_VCC_3.3V
C12
0.1 µF
C13
0.1 µF
C14
0.1 µF
C15
0.1 µF
GND
GND
VS
VBUS
VS
VBUS
P0.2_UART0-RTS
nRESETTRESout
T_RESET
TDOin
T_TDO
RTCKin
T_RTCK
TRESin
UART interface to QN9020
CTS
RTS
RXD
TXD
SB1
R26
0 Ω
R5
4.7 kΩ
R2
4.7 kΩ
R3
4.7 kΩ
R4
4.7 kΩ
C2
18 pF
32
41
C3
18 pF
R10
0 Ω
R11
0 Ω
solder_bridge
SB2
solder_bridge
SB3
solder_bridge
SB4
solder_bridge
P0.1_UART0-CTS
P0.0_UART0-TX
P1.7_UART0-RX
SWCLK/TCK
SWCLK/TCK
TCKout
T_TCK
TCKin
R8
150 Ω
J3
jump
SWDIO/TMS
JTAG interface to QN9020
SWDIO/TMS
TMSout
T_TMS
TMSin
R7
150 Ω
J2
jump
TDIout
T_TDI
TDIin
R9
0 Ω
TRSTout
T_TRST
TRSTin
R6
0 Ω
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Fig 18. Power schematic for all mini DK versions
aaa-018345
15
VIN
V5
VBUS
TP2
R25
0 Ω
VOUT
C29
0.1 µF
C26
10 nF
C30
10 µF
16 V
J13
J11
JUMP2
JUMP3
MB_VCC_3.3V
U2
GND
GND
2
GND
3
BAT1
battery
1
2
2
3
1
3
4
EN NR/FB
TPS73633
J12
R24
0 Ω
JUMP2
QN_VCC_3.3V
QN current test
Note:
connect jumper J11 PIN2, 3 LDO as a power supply
connect jumper J11 PIN1, 2 battery as a power supply
QN_VIO
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xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx
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Fig 19. QN9020 schematic in QN9020 mini DK board V7 and below
aaa-018346
1
nRESET
J9
P3.0_ADC-
2
34
56
78
910
P3.1_ADC+P3.2_SPI0-MISO
P3.3_SPI0-MOSIP3.4_SPI0-CLK
P3.5_SPI0-CSP3.6
QN_VCC_3.3 VGND
1
P0.0 UART0-TX
QN9020 GPIOQN9020 device
J6
P0.1_UART0-CTS
2
34
56
78
910
P0.2 UART0-RTSP0.3
P0.4P0.5
SWDIO/TMSSWCLK/TCK
QN_VCC_3.3 VGND
1
P2.0_UART1-RX
J8
P2.1_UART1-TX
2
34
56
78
910
P2.2P2.3_I2C-SDA
P2.4_I2C-SCLP2.5
P2.6_PWMP2.7_PWM
GNDQN_VCC_3.3 V
1
P1.0_SPI1-MISO
J7
P1.1_SPI1-MOSI
2
34
56
78
910
P1.2_SPI1-CSP1.3_SPI1-CLK
P1.4P1.5_PWM
P1.6_PWMP1.7_UART0-RX
GNDQN_VCC_3.3 V
R20
LED1
LED2
D2
D3
R21
470 Ω
470 Ω
QN_VIO
P0.5
P0.4
R15
P1.4
P1.5_PWM
button 1
SW1
2
3
1
4
R18
100 kΩ
100 kΩ
QN_VIO
button 2
SW2
2
3
1
4
buzzer
12
P2.6_PWM
B1
1
J5
QN_VIO
QN_VIO
2
3
4
5
QN_VIO
P3.0_ADC-
J10
1
2
3
4
5
P3.1_ADC+
P3.6
P2.3_I2C-SDA
P2.4_I2C-SCL
6
7
8
9
10
P0.3
R16
0 Ω
R22
0 Ω
R17
0 Ω
P0.4
P0.5
P3.3_SPIO-MOSI
P3.5_SPIO-CS
11
12
GND
6
7
8
9
10
11
12
SW3
reset button
nRESET
USER BUTTON
RESET BUTTON
USER LED BUZZER
CONNECTOR FOR SENSOR BOARD
12
P2_0
29
28
27
26
25
P2_1
P2_2
P2_3
P2_4
RFP
34
33
32
31
30
RFN
VDD2
C44
Y3
16 M
L5
15 nH
L4
10 µH
R31
100 kΩ
R32
56 kΩ
C39
2.2 nF
L2
L1
1.1 nH
6.2 nH
L3
2.0 nH
C46
A1
antenna
1.5 pF
C42
8.2 pF
C47
1.0 pF
C41
1 µF
100 nF
36
C43
100 nF
35
VSS2
RVDD
RSTN
P3_6
P2.0_UART1-RX
P2.1_UART1-TX
P2.2
P2.3_I2C-SDA
P2.4_I2C-SCL
P3.6
nRESET
QN9020
U6
nRESET
P0_3
8
9
10
11
12
13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37
P0_2
P0_1
P0_0
VSS1
P0_6
QN_VCC_3.3 V
SWCLK/TCK
SWDIO/TMS
GND
GND
QN_VCC_3.3 V
3
4
5
6
7
XTAL2_32K
VCC
1
2
P0_7
XTAL1_32K
P0_5
P0_4
P0.3
P0.2_UART0-RTS
P0.1_UART0-CTS
P0.0_UART0-TX
P0.5
P0.4
P1_1
P1_0
P2_7
P2_6
P2_5
P1_6
P1_5
VDD1
C37
100 nF
P1_7
P1_4
P1_3
P1_2
P1.1_SPI1-MOSI
P1.0_SPI1-MISO
P2.7_PWM
P2.6_PWM
P2.5
P1.6_PWM
P1.5_PWM
P1.7_UART0-RX
P1.4
P1.3_SPI1-CLK
P1.2_SPI1-CS
P3_5
C48
1 µF
XTAL1
XTAL2
VDD3
REXT
P3_0
P3_1
DCC
49
GND
VSS3
P3_2
P3_3
P3_4
P3.5_SPIOCS
P3.0_ADC-
P3.1_ADC+
P3.2_SPIOMISO
P3.3_SPIOMOSI
P3.4_SPIOCLK
C38
100 nF
C40
Y2
32.768 kHz
C45
22 pF
22 pF
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UM10895 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2018. All rights reserved.
User manual Rev. 4 — 12 November 2018 16 of 22
NXP Semiconductors
UM10895
QN9020 mini DK user guide
Fig 20. QN9020 schematic in QN9020 mini DK board V8
aaa-022819
QN9020 GPIOQN9020 device
1
P2.0_UART1-RX
J7
P2.1_UART1-TX
2
34
56
78
910
P2.2P2.3_I2C-SDA
P2.4_I2C-SCLP2.5
P2.6_PWMP2.7_PWM
GNDQN_VCC_3.3 V
11
P1.0_SPI1-MISOP1.1_SPI1-MOSI
12
13 14
15 16
17 18
19 20
P1.2_SPI1-CSP1.3_SPI1-CLK
P1.4P1.5_PWM
P1.6_PWMP1.7_UART0-RX
GNDQN_VCC_3.3 V
1
GND
J6
QN_VCC_3.3 V
2
34
56
78
910
P3.6P3.5_SPI0-CS
P3.4_SPI0-CLKP3.3_SPI0-MOSI
P3.2_SPI0-MISOP3.1_ADC+
P3.0_ADC-nRESET
11
GNDQN_VCC_3.3 V
12
13 14
15 16
17 18
19 20
SWCLK/TCKSWDIO/TMS
P0.5P0.4
P0.3P0.2_UART0-RTS
P0.1_UART0-CTSP0.0_UART0-TX
R20
LED1
LED2
D2
D3
R21
1 kΩ
1 kΩ
QN_VIO
P0.5
P0.4
R15
P1.4
P1.5_PWM
button 1
SW1
2
3
1
4
R18
100 kΩ
100 kΩ
QN_VIO
button 2
SW2
2
3
1
4
buzzer
12
P2.6_PWM
B1
1
J5
QN_VIO
QN_VIO
2
3
4
5
QN_VIO
P3.0_ADC-
J10
1
2
3
4
5
P3.1_ADC+
P3.6
P2.3_I2C-SDA
P2.4_I2C-SCL
6
7
8
9
10
P0.3
R16
0 Ω
R22
0 Ω
R17
0 Ω
P0.4
P0.5
P3.3_SPIO-MO
SI
P3.5_SPIO-CS11
12 GND
6
7
8
9
10
11
12
SW3
reset button
nRESET
USER BUTTON
RESET BUTTON
USER LED BUZZER
CONNECTOR FOR SENSOR BOARD
12
P2_0
29
28
27
26
25
P2_1
P2_2
P2_3
P2_4
RFP
34
33
32
31
30
RFN
VDD2
C44
Y3
16 M
L5
15 nH
L4
10 µH
R31
100 kΩ
R32
56 kΩ
C39
2.2 nF
L2
L1
1.1 nH
6.2 nH
L3
2.0 nH
C46
A1
antenna
1.5 pF
C42
8.2 pF
C47
1.0 pF
C41
1 µF
100 nF
36
C43
100 nF
35
VSS2
RVDD
RSTN
P3_6
P2.0_UART1-RX
P2.1_UART1-TX
P2.2
P2.3_I2C-SDA
P2.4_I2C-SCL
P3.6
nRESET
QN9020
U6
nRESET
P0_3
8
9
10
11
12
13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37
P0_2
P0_1
P0_0
VSS1
P0_6
QN_VCC_3.3 V
SWCLK/TCK
SWDIO/TMS
GND
GND
QN_VCC_3.3 V
3
4
5
6
7
XTAL2_32K
VCC
1
2
P0_7
XTAL1_32K
P0_5
P0_4
P0.3
P0.2_UART0-RTS
P0.1_UART0-CTS
P0.0_UART0-TX
P0.5
P0.4
P1_1
P1_0
P2_7
P2_6
P2_5
P1_6
P1_5
VDD1
C37
100 nF
P1_7
P1_4
P1_3
P1_2
P1.1_SPI1-MOSI
P1.0_SPI1-MISO
P2.7_PWM
P2.6_PWM
P2.5
P1.6_PWM
P1.5_PWM
P1.7_UART0-RX
P1.4
P1.3_SPI1-CLK
P1.2_SPI1-CS
P3_5
C48
1 µF
XTAL1
XTAL2
VDD3
REXT
P3_0
P3_1
DCC
49
GND
VSS3
P3_2
P3_3
P3_4
P3.5_SPIOCS
P3.0_ADC-
P3.1_ADC+
P3.2_SPIOMISO
P3.3_SPIOMOSI
P3.4_SPIOCLK
C38
100 nF
C40
Y2
32.768 kHz
C45
22 pF
22 pF
UM10895 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2018. All rights reserved.
User manual Rev. 4 — 12 November 2018 17 of 22
NXP Semiconductors
UM10895
QN9020 mini DK user guide
3.2 PCB layout
Fig 21. Silk screen top
aaa-018347
SWDIO
SWCLK
LED1R20
R18
P1.7-P1.0 P2.7-P2.0
P0.0-P0.7 P3.0-P3.6
QN9020_MINIDK_V7
R150121
R15
C24
D1
R28
R29
R13
R14
R25
R12
C21
C22
C14
C15
C9
J13
U5
TP2
J11
123
J12VCC
C26
C23
R24
U2
C29
C30
R30
C36
SW2SW1
QNVCC
VBAT
J13 power for U1
J12 power for U6
J11 power select
BUTTON2BUTTON1
D2
R21
C6
R9
R27
R23
J7
J8
J6
J4
J9
A1
R7
R8
C11
C5
U1
SEGGER
J-Link
TM
Technology
www.segger,com
D3
CTS
TXD
RXD
RTS
R37
R38
R34
R35
R36
C40
C46
C43
Y3
R32
C44
L3
Y2
C45
R2 R4 R3 R5
J1
C2
Y1
C20
C13
C19
C18
C17
C48
C38 C37
C41
R31
C42
C47
C39
L1
U6
L2
L5 L4
SW3
QN_RST
C8
C3
R22
GND
P3.5
P3.3
P0.5
P0.4
P0.3
SCL
SDA
P3.6
P3.1
P3.0 VCC
VCC
J10
J5
R17
R16
R33
R10
R11
R6
C12
C7
R26
R19
C10
TP1
C16
LED2
UM10895 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2018. All rights reserved.
User manual Rev. 4 — 12 November 2018 18 of 22
NXP Semiconductors
UM10895
QN9020 mini DK user guide
4. Abbreviations
Fig 22. Silk screen bottom
aaa-018348
P2.0
P2.2
P2.4
P2.6
GND
P1.0
P1.2
P1.4
P1.6
GND
VBUS
D-
D+
GND
VCC
Vbat
B1
BAT1
123
P2.1
P2.3
P2.5
P2.7
VCC
P1.1
P1.3
P1.5
P1.7
VCC
GND
P3.6
P3.4
P3.2
P3.0
GND
P0.7
P0.5
P0.3
P0.1
VCC
P3.5
P3.3
P3.1
RESET
VCC
P0.6
P0.4
P0.2
P0.0
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
UM10895 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2018. All rights reserved.
User manual Rev. 4 — 12 November 2018 19 of 22
NXP Semiconductors
UM10895
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
UM10895 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2018. All rights reserved.
User manual Rev. 4 — 12 November 2018 20 of 22
NXP Semiconductors
UM10895
QN9020 mini DK user guide
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.
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NXP QN902X User guide

NXP
Brand
NXP
Model
QN902X
Type
User guide
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