Fanstel BluNor BT40F User manual
BLE 5.1 Modules, BT40/F/E Ver0.90March2021
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BluNor BT40F is a powerful, highly flexible, ultra low power Bluetooth Low Energy (BLE) using
Nordic nRF5340 SoC. With a dual core ARMCortexTM M33 MCU, embedded 2.4GHz multi-
protocol transceiver, and an integrated PCB trace antenna or u.FL connector for an external
antenna. It allows faster time to market with reduced development cost.
No external component needed to minimize host PCB area: Both 32 MHz and 32.768 KHz, -40oC to +105oC,
20 PPM crystals are integrated. DCDC inductors for VDD and VDDH are integrated.
Specifications:
nRF5340 QKAA, dual core ARM®Cortex M33
Application Core
• 128/64 MHz Cortex M33 with FPU and DSP
instructions
• 1MB flash, 512KB RAM
• 8KB 2-way set associate cache
• ARM® TrustZone® Cryptocell-312 co-processor
Network core:
• 64 MHz Cortex M33 with 2KB instruction cache
• 256KB flash, 64KB RAM
• 2.6 mA in RX and 3.2 mA in 0dBm TX
• Receiver Sensitivity: -97.5 dBm at 1Mbps
• TX power: programmable +3dBm to -20dBm
• BLE 5.1 data rate: 2Mbps, 1Mbps, 500kbps, 125kbps.
• EEE 802.15.4 data rate: 250 Kbps
• 2.4 GHz proprietary data rate: 2 Mbps, 1 Mbps
DC-DC converter, inductors for VDD, VDDH on
board.
Direct powered by Lithium batteries or USB supply (up
to 5.5V)
Serial Wire Debug (SWD)
Nordic SoftDevice Ready
Over-the-Air (OTA) firmware update
48 General purpose I/O pins
USB 2.0 full speed (12 Mbps) controller
QSPI interface
Type 2 NFC-A tag with wake-on field, Touch-to-pair
support
Programmable peripheral interconnect (PPI)
12 bit/200 Ksps ADC, 8 configurable channels with
programmable gain
Temperature sensor
Up to 3x pulse width modulator (PWM)
Audio peripherals: I2S, digital microphone interface
(PDM)
5 x 32 bit timers with counter mode
Up to 3x SPI masters/3x SPI slaves
Up to 2x I2C compatible 2-wire masters/slaves
2x UART (CTS/RTS)
Quadrature Demodulator (QDEC)
2x real time counters (RTC)
Hybrid pins: 16 castellated and 45 LGA.
Both 32 MHz and 32.768KHz crystal on board
Integrated PCB trace antenna or u.FL connector
Operation voltage: 1.7V to 5.5V
QDID:
Model Summaries
module BT40F BT40 BT40E
SoC nRF5340 QKAA nRF5340 QKAA nRF5340 QKAA
Size 15x20.8x1.9mm 14x16x1.9mm 14x16x1.9mm
32 MHz and 32.768 kHz crystals Integrated Integrated Integrated
DC converter inductors, VDD,VDDH Integrated Integrated Integrated
BT Antenna PCB ANT 0.88dBi PCB ANT -3.37dBi Dipole ANT 6dBi
Max TX
Operating temp. -40oC to +105oC-40oC to +105oC-40oC to +105oC
Availability Sample Sample 1Q21 Sample
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Table Of Contents
1. Introduction ..........................................................................................................................................................3
BT40F Block Diagram..........................................................................................................................................3
BT40X Block Diagram........................................................................................................ 錯誤! 尚未定義書籤。
2. Codes Development Using Nordic Tools ............................................................................................................5
Over-The-Air DFU................................................................................................................................................5
SoftDevices..........................................................................................................................................................5
Development Tools..............................................................................................................................................5
3. Product Descriptions............................................................................................................................................6
Block Diagram of nRF5340..................................................................................................................................7
Mechanical Drawings...........................................................................................................................................9
Pin Assignments of BT40...................................................................................................................................12
Pin Function .......................................................................................................................................................14
Mounting BT40F on the Host PCB....................................................................................................................15
Host Board Design for Low Cost or Long Range..............................................................................................16
Control Nordic nRF21540 Power Amplifier .......................................................................................................17
4. BT40F Evaluation Board....................................................................................................................................18
Nordic Development Tools ................................................................................................................................19
Android OS Apps ...............................................................................................................................................19
iOS Apps............................................................................................................................................................19
EV-BT40F EvaluationBoard Schematics..........................................................................................................20
Suggestion for Battery Power Application.........................................................................................................20
5. Miscellaneous ....................................................................................................................................................21
Soldering Temperature-Time Profile for Re-Flow Soldering.............................................................................21
Cautions, Design Notes, and Installation Notes................................................................................................21
Packaging and Lot Number...............................................................................................................................25
FCC Label..........................................................................................................................................................25
Revision History.....................................................................................................................................................27
Contact Us ............................................................................................................................. 錯誤! 尚未定義書籤。
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1.
Introduction
BluNor BT40F Series are powerful, highly flexible, ultra low power wireless modules using Nordic nRF5340
SoCs. With a dual core ARM
Cortex
TM
M33 MCU, embedded 2.4GHz multi-protocol transceiver, and an
integrated antenna, it allows faster time to market with reduced development cost.
BT40F Block Diagram
The following is a block diagram of BT40F. Antenna circuit and main clock are integrated. All 48 GPIOs of
nRF5340 can be accessed from main board. For lower power consumption at idle state, a 32.768 kHz crystal
can be added on the host board. Connection to an external NFC (Near Field Communication) antenna is
provided.
BlurNor BT40F is a sister module of BT840F, an nRF52840 module. The
physical size is the same.
There are 3 modules in the BT40F Series.
BT40F
•
Uses an nRF5340 QIAA with dual core Cortex M33 MCU
•
Supports NFC
•
Integrated high performance PCB trace antenna.
•
Size: 15x20.8x1.9mm
BT40
•
Uses an nRF5340 QIAA with dual core Cortex M33 MCU
•
Integrated PCB trace antenna.
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•Size: 14x16x1.9mm.
BT40E
•Uses an nRF5340 QIAA with dual core Cortex M33 MCU
•An u.FL connector for external antenna. Size: 14x16x1.9mm.
•
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2. Codes Development Using Nordic Tools
Development tools by Nordic and other third party development tools recommended by Nordic should be used.
Nordic development environment for nRF5340 offers a clean separation between application code
development and embedded protocol stacks. This means compile, link and run time dependencies with the
embedded stack and associated debugging challenges are removed. The Bluetooth low energy and ANT stack
is a pre-compiled binary, leaving application code to be compiled stand-alone. The embedded stack interface
uses an asynchronous and event driven model removing the need for RTOS frameworks.
Over-The-Air DFU
The nRF52840 is supported by an Over-The-Air Device Firmware Upgrade (OTA DFU) feature. This allows for
in the field updates of application software and SoftDevice.
SoftDevices
The Nordic protocol stacks are known as SoftDevices and complement the nRF53 Series SoCs. All nRF53 Series are
programmable with software stacks from Nordic. This bring maximum flexibility to application development and allows
the latest stack version to be programmed into the SoC.
SoftDevices available from Nordic:
S***: Bluetooth low energy concurrent central/peripheral/observer/broadcaster stack.
Development Tools
Nordic Semiconductor provides a complete range of hardware and software development tools for the nRF53 Series
devices. nRF53 DK board is recommended for firmware development.
Nordic software development tools can be downloaded from the following webpage.
https://infocenter.nordicsemi.com/index.jsp?topic=/com.nordic.infocenter.nrf52/dita/nrf52/development/nrf52_d
ev_kit.html&cp=1_1
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3. Product Descriptions
Brief description of nRF5340 SoC is provided. For full description of the SoC, please download from Nordic
Semiconductor website.
https://www.nordicsemi.com/eng/Products/Bluetooth-low-energy
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Block Diagram of nRF5340
The following is a block diagram of Nordic nRF5340 Bluetooth Low Energy (BLE) SoC. Arrows with white
heads indicate signals that share physical pins with other signals.
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nRF5340 is a wireless ultra-low power multiple core System on Chip (SoC) integrating two fully programmable
Arm Cortex M33 processors, advanced security features, a range of peripherals, and a multiprotocol 2.4 GHz
transceiver. The transceiver supports Bluetooth low energy .
The two Arm Cortex M33 processors share the power, clock, and peripheral architecture with Nordic
Semiconductor nRF51, nRF52, and nRF91 Series of PAN/LAN SoCs, ensuring minimal porting efforts. The
application core is a full-featured Arm Cortex M33 processor including DSP instructions and FPU and running
at up to 128 MHz with 1MB of flash and 512 KB of RAM. The option to run the application processor at 64 MHz
allows th eCPU to increase energy efficiency. The network core is an Arm Cortex M33 processor with a
reduced feature set, designed for ultra-low power operation. It runs at a fixed 64 MHz frequency and contains
256 KB of flash and 64 KB of RAM.
The peripheral set offers a variety of analog and digital functionality enabling single chip implementation of a
wide range of applications. Arm trustZone technology, Arm cryptoCell-312, and supporting blocks for ysytem
protection and key management are embedded for the advanced security needed for IoT applications.
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Mechanical Drawings
Mechanical drawings of BT40F, BT40, and BT40E is identical to that of BT840F, BT840, and BT840E,
respectively.
Two types of pins are available to meet different application requirements.
•
16 castellated pins for application needing limited number of IOs. SMT equipment is not required for
soldering castellated pins.
•
45 LGA (Land Grid Array) pins to access all 48 GPIOs of nRF52840 when needed.
BT40F mechanical
drawings, top view
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BT40 and BT40E mechanical
drawings, top view.
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BT40X mechanical drawings, top view
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Pin Assignments of BT40
The followings are BT40 pin assignment. Pin functions are in a table in next section. Please refer to Nordic
nRF5340 Product Specifications for detailed descriptions and features supported.
https://infocenter.nordicsemi.com/index.jsp?topic=%2Fstruct_nrf53%2Fstruct%2Fnrf5340.html&cp=3_0
BT840F and BT40F pin assignments.
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BT840 52840 BT40 nRF5340
pin# pin# pin name pin# pin# pin name Descriptions
1G1 P0.26/SDA 1AE1 P1.02 GPIO, configured as I2C SDA on EV board
2H2 P0.27/SCL 2AF2 P1.03 GPIO, configured as I2C SCL on EV board
3D2 P0.00/XL1 3N1 NC GPIO, connection for 32.768kHz crystal
4F2 P0.01/XL2 4R1 NC GPIO, connection for 32.768kHz crystal
5A12 P0.02/AIN0 5V2 P0.04/AIN0 GPIO, Analog input
6B13 P0.03/AIN1 6Y2 P0.05/AIN1 GPIO, Analog input
7L24 P0.09/NFC1 7W1 P0.02/NFC1 GPIO, NFC antenna connection
8J24 P0.10/NFC2 8AA1 P0.03/NFC2 GPIO, NFC antenna connection
9B1 VDD 9A19 VDD DC supply 1.7V to 3.6V
10 B7 GND 10 A25 VSS Ground
11 T2 P0.11 11 AJ1 P0.09 GPIO
12 AD22 P1.00 12 AK4 P0.11 GPIO
13 AD8 P0.13 13 B24 P0.30 GPIO
14 AC13 P0.18/RESET 14 AC31 RESET GPIO, internal RC reset circuit, configurable as
RESET pin
15 AA24 SWDCLK 15 W31 SWDCLK Serial Wire Debug clock input
16 AC24 SWDIO 16 AA31 SWDIO Serial Wire Debug I/O
Z0 B19 P1.11 Z0 AK26 P.109 GPIO
Z1 B17 P1.12 Z1 R31 P1.10 GPIO
Z2 A16 P1.13 Z2 B20 P1.11 GPIO
Z3 B15 P1.14 Z3 B18 P1.12 GPIO
Z4 A14 P1.15 Z4 A17 P1.13 GPIO
Z5 A20 P1.10 Z5 B16 P1.14 GPIO
Z6 R24 P1.06 Z6 B14 P1.15 GPIO
A0 GND A0 A25 VSS Ground
A1 B11 P0.28/AIN4 A1 AB2 P0.06 GPIO, Analog input for BT840F
A2 A10 P0.29/AIN5 A2 AD2 P0.07 GPIO, Analog input for BT840F
A3 J1 P0.04/AIN2 A3 AH2 P0.08 GPIO, Analog input for BT840F
A4 K2 P0.05/AIN3 A4 AL9 P0.16 GPIO, Analog input for BT840F
A5 M2 P0.07 A5 M2 P1.00 GPIO
A6 P2 P1.08 A6 AL23 P1.08 GPIO
B0 GND B0 VSS Ground
B1 AC21 P0.25 B1 AL13 P0.19 GPIO
B2 B9 P0.30/AIN6 B2 AK12 P0.17 GPIO, Analog input for BT840F
B3 A8 P0.31/AIN7 B3 AK8 P0.14 GPIO, Analog input for BT840F
B4 L1 P0.06 B4 AK10 P0.15 GPIO, NC for BT840X, BT840XE, PA control
B5 N1 P0.08 B5 AK6 P0.12 GPIO, NC for BT840X, BT840XE, PA control
B6 V23 P1.03 B6 AL5 P0.13 GPIO
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C0 GND C0 VSS Ground
C1 AD20 P0.24 C1 B22 P0.31 GPIO
C2 AD18 P0.22 C2 AL15 P0.21 GPIO
C3 AD12 P0.17 C3 AL27 P0.24 GPIO, NC for BT840X,BT840XE, PA control
C4 AD10 P0.15 C4 AK20 P0.23 GPIO
C5 W24 P1.02 C5 AK16 P0.20 GPIO
C6 U24 P1.04 C6 AK28 P0.25 GPIO
D0 GND D0 VSS Ground
D1 AC19 P0.23 D1 AL29 P0.26 GPIO
D2 AC15 P0.19 D2 AK30 P0.27 GPIO, NC for BT840 X,BT840XE, PA control
D3 AC11 P0.16 D3 AE31 P0.28 GPIO
D4 AC9 P0.14 D4 U31 P0.29 GPIO
D5 Y23 P1.01 D5 AK18 P0.22 GPIO
D6 T23 P1.05 D6 P2 P1.01 GPIO
E0 P23 P1.07 E0 AL19 P1.04 GPIO
E1 AD16 P0.20 E1 AK22 P1.05 GPIO
E2 AC17 P0.21 E2 AL21 P1.06 GPIO
E3 R1 P1.09 E3 AK24 P1.07 GPIO
E4 AD6 D+ E4 B2 D+ USB D+
E5 AD4 D- E5 B4 D- USB D-
E6 U1 P0.12 E6 AK2 P0.10 GPIO
F0 H0 Ground pad
F1 H1 Ground pad
F2 H2 Ground pad
F3 H3 Ground pad
F3 AK14 P0.18
F4 Y2 VDDH F4 E1 VDDH High Voltage Power Supply
F5 AB2 DCCH F5 J1 NC DC to DC converter output
F6 AD2 VBUS F6 A5 VBUS 5V DC power for USB 3.3V regulator
Pin Function
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Mounting BT40F on the Host PCB
The following figure shows recommended mounting of BT40F module on the host PCB.
•For the best Bluetooth range performance, the antenna area of module shall extend 9.8 mm outside the
edge of host PCB board, or 9.8 mm outside the edge of a ground plane.
•The next choice is to place a module on a corner of host PCB, the antenna area shall extend 9.8 mm from
the edge of ground plane. Ground plane shall be at least 5 mm from the edge of the antenna area of
module.
•We don’t recommend mounting BT40F module in the middle of a host PCB.
For the best Bluetooth range performance, keep all external metal at least 30mm from the antenna area.
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Host Board Design for Low Cost or Long Range
On nRF53 series SoCs, Nordic offers various memory options and protocol supports. Fanstel offers various
antenna and power amplifier options. A host board can be designed to accommodate these nRF53 modules.
Our suggestions for host PCB design:
If your main goal is minimum PCB cost,
•use a 2-sided PCB.
•Use library component from EV-BT40F Gerber files, can be downloaded from
http://www.fanstel.com/download-document/. It has 16 castellated pins plus 24 LGA pins. BT40F library
component can be used. However, signal routing can be difficult on a 2-sided PCB.
•Be sure of no metal contact in the area of 21 additional BT40F pins.
•BT40F can be mounted on a BT840F pad.
If you main goal is maximum wireless range,
•use a 4 or more layers PCB.
•Use library component from EV-BT40F Gerber files. They can be downloaded from
http://www.fanstel.com/download-document/. It has 16 castellated pins plus 45 LGA pins.
•As much ground plane under BT40F, on top side of host PCB as possible. Use EV-BT40F Gerber files
as an example.
•If your products may need wireless range of 1350 meters or more, allocate physical space for a
15x28x1.9mm module. This larger module size is required to accommodate Nordic nRF21540 power
amplifier.
•(To be determined) Don’t use P0.06 (BT840F pin B4), P0.17 (BT840F pin C3), and P0.19 (BT840F pin
D2) on the host board. These pins are used to control SKY66112 power amplifier in BT840X and
BT840XE.
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Control Nordic nRF21540 Power Amplifier
BT40X uses nRF21540 power amplifier.
Control codes to be provided.
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4. BT40F Evaluation Board
An evaluation board consists of the followings:
•Mini USB cable
•Evaluation board
•10-conductor cable for connection to Nordic nRF53 DK (DK is not included)
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Nordic Development Tools
A Nordic nRF53 DK is recommended for programming this evaluation board. Nordic development tools can be
downloaded from:
https://www.nordicsemi.com/eng/Products/nRF52840
Many application examples can be downloaded from Nordic website.
Some firmware, Android OS, and iOS app codes can be downloaded from Bluetooth 5 Codes section of this
Fanstel webpage.
http://www.fanstel.com/download-document/
BT40 firmware can be used in all nRF5340 modules without power amplifier, e.g., BT40F and BT40E.
Android OS Apps
The following Android OS apps are available for download from Google Play Store:
BlueNor nrf5x: to use with Bluetooth 5 stacks, AT commands, or Slave firmware. Master firmware does not
connect to a smartphone. Source codes can be downloaded from http://www.fanstel.com/download-document/
BlueNor Mesh: to use with BlueNor mesh firmware to send command to any node in a mesh. Node number is
displayed when acknowledgement is received. Source codes will be uploaded to Fanstel website when
supporting Bluetooth 5.
iOS Apps
The following iOS apps can be downloaded from Apple APP Store.
BlueNor Mesh: to use with BlueNor mesh firmware to send command to any node in a mesh. Node number is
displayed when acknowledgement is received.
BlueNor nrf5x firmware, apps, and source codes will be uploaded when ready.
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EV-BT40F EvaluationBoard Schematics
Evaluation board schematics and Gerber files can be downloaded from
http://www.fanstel.com/download-document/
Evaluation board can be used as a reference design for using modules. EV-BT40F is designed for the BT40F
soldering pads with 61 pins. This EV board can also be used for BT40, BT40E, BT40X, and BT40XE modules.
Suggestion for Battery Power Application
Standby current consumption is important for battery-powered product. We suggest adding a 32.768 kHz
crystal and 2 capacitors on host board. The 32MHz main clock won’t be active at idle state to save power.
Two inductors required for on-board DC to DC converter are inside BT40F. You can enable DCDC converter to
have lower power consumption.
This manual suits for next models
2
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