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Related Manuals for Nordic nRF9161 DK
Summary of Contents for Nordic nRF9161 DK
- Page 1 DK Hardware v.0.9.1 User Guide 4510_044 / 2024-01-09...
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Page 2: Table Of Contents
Contents Revision history ........Environmental and safety notices . - Page 3 Radiated performance ......Regulatory information ......Glossary .
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Page 4: Revision History
Revision history Date Description 2024-01-09 First release 4510_044... -
Page 5: Environmental And Safety Notices
Environmental and safety notices Environmental and safety notices for the DK and power supply requirements. Note: The nRF9161 DK must be powered by a PS1 class (IEC 62368-1) power supply with maximum power less than 15 W. Skilled persons The nRF9161 DK is intended for use only by skilled persons. -
Page 6: Introduction
Introduction The nRF9161 DK is a hardware development platform used to design and develop application firmware on the nRF9161 System in Package (SiP). The nRF9161 SiP supports DECT NR+ or Long-Term Evolution (LTE) and Global Navigation Satellite System (GNSS) depending on the installed network protocol firmware. -
Page 7: Kit Content
The nRF9161 DK includes hardware, preprogrammed firmware, documentation, hardware schematics, and layout files. Figure 1: nRF9161 DK kit content Hardware files The hardware design files for the nRF9161 DK are available on the nRF9161 DK product page. They include the following resources: •... -
Page 8: Operating Modes
The nRF9161 DK has two main modes of operation. 3.1 Firmware development mode The primary interface for programming and debugging the nRF9161 DK is the USB port (J6). The USB port is connected to an interface MCU which embeds a SEGGER J-Link-OB (Onboard) debug probe. -
Page 9: Performance Measurement Mode
If the interface MCU is disabled, the RESET button is connected directly to the SiP. 3.2 Performance measurement mode The nRF9161 DK has flexible configuration options for performance testing and operation analysis. The combination of solder bridges and parameter settings in the interface MCU define the DK's operation mode. -
Page 10: Hardware Description
Hardware description The nRF9161 DK features an onboard programming and debugging solution. 4.1 Hardware drawings The nRF9161 DK hardware drawings show both sides of the DK. Figure 4: nRF9161 DK, front view Figure 5: nRF9161 DK, back view 4.2 Block diagram The block diagram illustrates the functional architecture of the nRF9161 DK. -
Page 11: Power Supply
The DK has a flexible and configurable power supply system to allow software development and testing using different power sources and to facilitate accurate power consumption measurements. The nRF9161 DK is powered by either of the following sources: • USB connector J6 (5 V) •... -
Page 12: Nrf9161 Sip Supply Rail
Hardware description Figure 7: Power supply options By default, the nRF9161 SiP is supplied from USB through a jumper. To supply other power domains on the board, two nPM1100 ICs are used in a daisy chain configuration as shown in the following figure. VDD_5V VBUS VSYS... -
Page 13: Antenna Interfaces
The GNSS signal is RX only. A Low-Noise Amplifier (LNA) with integrated filters amplifies and filters the signal before it is fed to the GNSS RF port on the nRF9161 DK. An external active GNSS antenna can be connected to J2. When using an external antenna, the LNA should be disabled. -
Page 14: Gpio Interfaces
The GNSS signal from the onboard antenna is amplified and filtered in the LNA (U2), which has an integrated prefilter and postfilter, before it is fed to the nRF9161 DK. This makes the GNSS receiver more sensitive to GNSS signals and less sensitive to interference from other sources on the DK or nearby. The LNA is enabled by a GNSS-enable signal from the nRF9161 DK using the COEX0 pin. -
Page 15: Board Control
GPIO signals are also available on connectors P7, P8, P9, P10, P12, and P27 which are on the back of the DK. By mounting pin headers on the connector footprints, the nRF9161 DK can be used as a shield for Arduino motherboards. -
Page 16: I/O Expander
UM6X1NA 120R L0603G LED2 LED3 UM6X1NA 120R L0603G LED3 LED4 UM6X1NA 120R L0603G LED4 UM6X1NA Figure 14: LEDs 4.8.1 I/O expander The nRF9161 DK has an I/O expander that can optionally be used to interface the LEDs and buttons. 4510_044... - Page 17 Hardware description Signal GPIO Description P0.30 I2C data line P0.31 I2C clock line IOEXP_IRQ P0.19 Interrupt line from the I/O expander Table 2: I/O expander interface The following table shows the I/O expander connections. Component I/O expander pin LED 1 I/O_EXP_IO4 LED 2 I/O_EXP_IO5...
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Page 18: External Memory
4.10 Debug input and trace options The primary debug interface on the nRF9161 DK is the Segger OB debugger available through the USB port. If a power supply other than USB is used on the DK, this functionality is disabled. -
Page 19: Debug Out For Programming External Boards
Series, and nRF70 Series System on Chip (SoC)s and nRF91 Series SiPs. The interface MCU on the nRF9161 DK runs SEGGER J-Link OB Debugger interface firmware and is used to program and debug the firmware of the nRF9161 SoC by default. - Page 20 Hardware description Figure 19: Connecting an external board to P19 When the interface MCU detects the voltage of the external board on pin 1 (SWD0_VTG) of P19, it programs or debugs the target chip on the external board instead of the onboard nRF9161 SiP. The following figure and table show the P19 pinout.
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Page 21: Programming A Board With Custom Connections
Hardware description Pin number Signal Description SELECT Voltage supply from the external target, used as a select pin for the interface MCU to enable this port SWDIO SWD Data Input/Output Ground SWDCLK Serial wire clock line Ground Serial Wire Output (SWO) line is not used for programming and debugging over SWD N.C. - Page 22 Note: If the interface MCU detects power on P19 and P20, it programs or debugs the target connected to P19 by default. If there is no separate power supply on the external board, the nRF9161 DK can supply power through pin 2 (VDD) of P20.
- Page 23 Figure 22: Debug output connector P20 Pin number Signal Description VDD_GPIO Main nRF9161 DK GPIO level power domain Voltage supply from the external target, used as a select pin for the interface MCU to enable this port SWDIO SWD Data line...
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Page 24: Debug Output
If the interface MCU detects target power on P19 and P20, it programs or debugs the target connected to P19 by default. If you do not have a separate power supply on the external board, the nRF9161 DK can supply power through the Debug out connector P18. To enable this, short solder bridge SB24. -
Page 25: Signal Routing Switches
Table 8: Pinout of connector P19 for programming external targets 4.13 Signal routing switches Several of the GPIO signals of the nRF9161 DK are routed through analog switches for onboard functionality or for having them available on the pin headers for external circuitry or Arduino-type shields. -
Page 26: Switches For Buttons And Leds
Hardware description 4.13.2 Switches for buttons and LEDs On the nRF9161 DK, there are a few analog switches that are used to connect and disconnect signals to control buttons, switches, and LEDs. The analog switches control whether the LEDs, buttons, and switches are connected directly to the nRF9161 GPIO or to an I/O expander. -
Page 27: Additional Interfaces
The nRF9161 DK supports dedicated interfaces for coexistence. Coexistence interface COEX0 is used to enable the GNSS LNA of the nRF9161 DK. The other COEX pins are exposed on P24 as shown on the following figure. Figure 27: SiP-external interfaces 4.16 SiP enable... -
Page 28: Solder Bridge Configuration
Hardware description 4.17 Solder bridge configuration The nRF9161 DK has a range of solder bridges for enabling or disabling functionality on the DK. Changes to these are not needed for normal use of the DK. The following table is a complete overview of the solder bridges on the nRF9161 DK. - Page 29 Hardware description Solder bridge Default Function SB32 Closed Cut to disconnect VDD_IMCU supply SB33 Closed Cut to disconnect the VSUPPLY and VDD_nRF' SB34 Open Short to connect VDD_nRF and VDD_nRF' SB35 Closed Cut to separate VDD_5V and 5V domains Table 9: Solder bridge configuration 4510_044...
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Page 30: Current Measurement
Current measurement The current drawn by the nRF9161 SiP can be monitored on the nRF9161 DK. Current can be measured using any of the following test instruments: • Power analyzer • Oscilloscope • Ampere meter • Power Profiler Kit II Power analyzer measurements are not described in this document. -
Page 31: Measuring Current Profile With An Oscilloscope
Preparing the DK for current measurements on page 30. Complete the following steps to measure the current profile of the nRF9161 DK: 1. Solder a 0.5 Ω resistor to R97. 2. Set the oscilloscope to differential mode or to a mode that is similar. -
Page 32: Measuring Average Current With An Ampere Meter
2. Set the dynamic range of the ampere meter between 1 uA and 15 mA so that it is wide enough to provide accurate measurements. 3. To connect the ampere meter in series with the nRF9161 DK, connect the ampere meter to the pins on connector P22. - Page 33 Note: Use a high-speed, high-dynamic-range ampere meter for the best and most reliable measurements. Switching the current range in the ampere meter can affect the power supply to the nRF9161 DK. High speed and bandwidth are required to detect rapid changes in the current consumption in the nRF9161 DK.
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Page 34: Rf Measurements
RF measurements The nRF9161 DK is equipped with a small coaxial connector J1 for measuring the LTE or DECT NR+ RF signal. The connector is of Microwave coaxial connector with switch (SWF) type (Murata part no. MM8130-2600) with an internal switch. By default, when no cable is attached, the RF signal is routed to the onboard antenna. -
Page 35: Radiated Performance
698 MHz to 960 MHz and 1710 MHz to 2200 MHz. All antennas on the nRF9161 DK have fixed matching networks, which means that no matching configuration is needed to switch between the frequency bands. The LTE antenna also supports other frequency ranges, but it is not optimized for operating on these frequency bands. -
Page 36: Regulatory Information
Regulatory information The nRF9161 DK contains an nRF9161 SiP which is FCC certified. For information on the bands supported by the nRF9161 SiP and for FCC regulatory notices, see Regulatory information in the nRF9161 Product Specification. This DK is designed to allow the following: •... -
Page 37: Glossary
Glossary AT command A command used to control the modem. Band-Pass Filter (BPF) An electronic device or circuit that passes frequencies within a certain range and rejects frequencies outside that range. Cat-M1 LTE-M User Equipment (UE) category with a single RX antenna, specified in 3GPP Release 13. Cat-NB1 NB-IoT UE category with 200 kHz UE bandwidth and a single RX antenna, specified in 3GPP Release Cat-NB2... - Page 38 Nordic Semiconductor's platform for connecting IoT devices to the cloud, viewing and analyzing device message data, prototyping ideas that use Nordic Semiconductor chips, and more. It includes a public REST API that can be used for building IoT solutions. See nRF Cloud portal (nrfcloud.com).
- Page 39 A board that connects electronic components. Receive Data (RXD) A signal line in a serial interface that receives data from another device. Request to Send (RTS) In flow control, the transmitting end is ready and requesting the far end for a permission to transfer data.
- Page 40 User Equipment (UE) Any device used by an end-user to communicate. The UE consists of the Mobile Equipment (ME) and the Universal Integrated Circuit Card (UICC). U.FL An ultra-small surface-mount coaxial connector designed for high-frequency performance. Universal Serial Bus (USB) An industry standard that establishes specifications for cables and connectors and protocols for connection, communication, and power supply between computers, peripheral devices, and other computers.
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Page 41: Recommended Reading
Recommended reading In addition to the information in this document, you might need to consult other documents. Nordic documentation • nRF9161 Product Specification • nRF Connect SDK documentation • nRF91x1 Cellular AT Commands • nRF Connect Programmer 4510_044... -
Page 42: Legal Notices
Nordic Semiconductor ASA customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Nordic Semiconductor ASA for any damages resulting from such improper use or sale.
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