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Summary of Contents for We OPHELIA-III
- Page 1 SER MANUAL -III PHELIA 2611011022000 ERSION 20, 2024 ARCH...
- Page 2 WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III Revision history Manual Notes Date version version March 2024 Initial release Order code 2611011022000 Version 1.0, March 2024 www.we-online.com/wcs...
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Page 3: Ophelia-Iii
Technique to spread a message on the radio spread spectrum ® Direct test mode Mode to test Bluetooth specific RF settings. Ophelia-III populated on motherboard with USB EV (Board) Evaluation (Board) interface for test and evaluation purpose. Forward error Technique to correct received erroneous radio... -
Page 4: Table Of Contents
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III Contents Overview of helpful application notes 1 Introduction Operational description ....... - Page 5 WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 9.2.3 Potting and coating ......33 9.2.4 Other notations .
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Page 6: Overview Of Helpful Application Notes
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III Overview of helpful application notes Application note ANR008 - Wireless Connectivity Software Development Kit http://www.we-online.com/ANR008 To ease the integration of the Würth Elektronik eiSos radio modules into an application, Würth Elektronik eiSos offers the corresponding Software Development Kit (SDK) for most commonly used host processors. -
Page 7: Introduction
LE profiles, timing configurations, security configurations as well as power consumption optimizations. Even with it’s small dimensions of 8 x 12 mm, Ophelia-III provides a strongly miniaturized in- tegrated PCB antenna. Besides, it is possible to connect an external antenna, if high radio ranges are of interest. -
Page 8: Key Features
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 1.1.1 Key features The Ophelia-III offers the following key features that are described in this manual in more detail: nRF52 series microprocessor generation provided by Nordic Semiconductor: the heart of ® Ophelia-III is the Bluetooth LE nRF52840 chip, offering high performance values com- bined with low power consumption. -
Page 9: Block Diagram
50Ω port to λ/4 antenna Antenna Figure 2: Block diagram of the module 1.3 Ordering information WE order code Description 2611011022000 Ophelia-III Module, Tape & Reel Table 1: Ordering information Order code 2611011022000 Version 1.0, March 2024 www.we-online.com/wcs... -
Page 10: Electrical Specifications
2.2 Absolute maximum ratings Power fail comparator can be activated and configured. Since Ophelia-III does not have any firmware, this function is not automatically active. To avoid flash fail due to voltage drop, the comparator can be set to 1.8 V. - Page 11 WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III Description Min. Typ. Max. Unit Supply voltage (VDD) -0.3 +3.9 Voltage on any digital pin, VDD 3.6 V -0.3 VDD+0.3 Voltage on any digital pin, VDD 3.6 V -0.3 Input RF level Flash endurance...
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Page 12: Power Consumption
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 2.3 Power consumption 2.3.1 Static Parameter Power Test conditions Value Unit Transmitter only, DC/DC converter enabled, TX current Maximum ® 1 Mbps Bluetooth 16.4 consumption output power CPU current not included, nRF52840 product specification... -
Page 13: Radio Characteristics
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 2.4 Radio characteristics Parameter Min. Max. Unit Frequency 2360 2500 Table 7: Frequency range Parameter Min. Max. Unit RSSI accuracy valid range (±2dB) Table 8: RSSI accuracy Parameter Test conditions Value Unit Output power... -
Page 14: Pin Characteristics
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 2.5 Pin characteristics The following specifications are from the nRF52 datasheet. Description Min. Typ. Max. Unit Input high voltage 0.7 ×VCC Input low voltage 0.3 ×VCC Current at VSS+0.4 V, output set low, standard drive, VDD 1.7V... -
Page 15: Pinout
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 3 Pinout SWDCLK P0.03 SWDIO P0.12 P0.18 P0.11 P0.02 P1.09 P1.08 Figure 3: Pinout (top view) Order code 2611011022000 Version 1.0, March 2024 www.we-online.com/wcs... - Page 16 WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III µC Pin Description RF connection to PCB antenna. (see section 4 ) RF connection through radio front end to transceiver part of chipset. (see section 4 ) Supply Ground Serial wire clock (SWD Interface). Uses inter- SWDCLK nal pull down resistor.
- Page 17 WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III Pins available to connect an external crystal in custom firmware. The standard firmware of Ophelia-III does not implement this function. NFC pins available for NFC function in custom firmware. The standard firmware of Ophelia-III does not imple- ment this function.
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Page 18: Antenna Connection
2.4 GHz frequency band. A simple short between the pins RF and ANT feeds the RF output of the module to the on-board antenna of the Ophelia-III. In this configuration, the module does not require any additional RF circuitry. -
Page 19: Custom Firmware
The qualification(s) of the standard module cannot be applied to this customer firmware solution without a review and verification. 5.2 Contact for firmware requests Please contact your local Business Development Manager (BDM) or wcs@we-online.com for quotes regarding this topic. Order code 2611011022000 Version 1.0, March 2024... -
Page 20: Firmware Flashing Using The Production Interface
User manual Ophelia-III 6 Firmware flashing using the production interface The Ophelia-III offers a serial wire debug and programming interface (SWD) for module flash access. This interface can be used by customers to install their own firmware. Customers flashing their own firmware are fully responsible for certification, declaration, listing and qualification. -
Page 21: Design In Guide
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 7 Design in guide 7.1 Advice for schematic and layout For users with less RF experience it is advisable to closely copy the relating evaluation board with respect to schematic and layout, as it is a proven design. The layout should be conducted with particular care, because even small deficiencies could affect the radio performance and... - Page 22 WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III Elements for ESD protection should be placed on all pins that are accessible from the outside and should be placed close to the accessible area. For example, the RF-pin is accessible when using an external antenna and should be protected.
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Page 23: Designing The Antenna Connection
The antenna should be connected with a 50 line. This is needed to obtain impedance matching to the module and avoids reflections. Here we show as an example how to calculate the dimensions of a 50 line in form of a micro strip above ground, as this is easiest to calculate. -
Page 24: Antenna Solutions
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III Figure 6: Dimensioning the antenna connection as micro strip The width W for a micro strip can be calculated using the following equation: 5 98 = 1 25 +1 41 Example: A FR4 material with = 4.3, a height H = 1000 µm and a copper thickness of T... -
Page 25: Wire Antenna
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III The choice of antenna might have influence on the safety requirements. In the following chapters, some special types of antenna are described. 7.3.1 Wire antenna An effective antenna is a /4 radiator with a suiting ground plane. The simplest realization is a piece of wire. -
Page 26: Antennas Provided By Würth Elektronik Eisos
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 7.3.4 Antennas provided by Würth Elektronik eiSos 7.3.4.1 2600130021 - Himalia - 2.4 GHz dipole antenna Figure 7: 2.4 GHz dipole-antenna Due to the fact, that the antenna has dipole topology there is no need for an additional ground plane. -
Page 27: Reference Design
User manual Ophelia-III 8 Reference design The Ophelia-III() with a special firmware based on Proteus-III was tested and certified on the corresponding EV-Board. This serves as a proved reference design. For the European Con- formity, the EV-board serves as reference design; for the FCC, it is mandatory to follow at least the trace design. -
Page 28: Ev-Board
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 8.1 EV-Board Figure 8: Reference design: Schematic page 1 Order code 2611011022000 Version 1.0, March 2024 www.we-online.com/wcs... - Page 29 WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III Figure 9: Reference design: Schematic page 2 Order code 2611011022000 Version 1.0, March 2024 www.we-online.com/wcs...
- Page 30 WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III no metal antenna Order code 2611011022000 Figure 10: Reference design: Layout Version 1.0, March 2024 www.we-online.com/wcs...
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Page 31: Radiation Characteristic Of The Module's Internal Antenna
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 8.2 Radiation characteristic of the module’s internal antenna Figure 11: Antenna characteristic of the module with its integrated antenna measured on the official evaluation board It is important to be aware that size and shape of the ground plane as well as the placement of module has influence on the radiation pattern. -
Page 32: Manufacturing Information
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 9 Manufacturing information 9.1 Moisture sensitivity level This wireless connectivity product is categorized as JEDEC Moisture Sensitivity Level 3 (MSL3), which requires special handling. More information regarding the MSL requirements can be found in the IPC/JEDEC J-STD-020 standard on www.jedec.org. -
Page 33: Cleaning
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III by the customer at their own risk. Rework is not recommended. –5°C Max. Ramp Up Rate Max. Ramp Down Rate Preheat Area s max s min Time 25°C to Peak Time Figure 12: Reflow soldering profile After reflow soldering, visually inspect the board to confirm proper alignment... -
Page 34: Potting And Coating
If the product is potted in the customer application, the potting material might shrink or expand during and after hardening. Shrinking could lead to an incomplete seal, allowing contaminants into the component. Expansion could damage components. We recom- mend a manual inspection after potting to avoid these effects. -
Page 35: Safety Recommendations
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 9.4 Safety recommendations It is your duty to ensure that the product is allowed to be used in the destination country and within the required environment. Usage of the product can be dangerous and must be tested and verified by the end user. -
Page 36: Physical Specifications
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 10 Physical specifications 10.1 Dimensions Dimensions 12 x 8 x 2 mm Table 13: Dimensions 10.2 Weight Weight <1g Table 14: Weight Order code 2611011022000 Version 1.0, March 2024 www.we-online.com/wcs... -
Page 37: Module Drawing
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 10.3 Module drawing 12,0 ±0,3 Figure 13: Module dimensions [mm] Order code 2611011022000 Version 1.0, March 2024 www.we-online.com/wcs... -
Page 38: Footprint
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 10.4 Footprint 12,5 4,23 no metal Figure 14: Footprint [mm] 10.5 Antenna free area To avoid influence and mismatching of the antenna the recommended free area around the antenna should be maintained. As rule of thumb a minimum distance of metal parts to the antenna of /10 should be kept (see figure 14 ). -
Page 39: Marking
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 11 Marking 11.1 Lot number The 15 digit lot number is printed in numerical digits as well as in form of a machine readable bar code. It is divided into 5 blocks as shown in the following picture and can be translated according to the following table. -
Page 40: Information For Explosion Protection
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III 12 Information for explosion protection In case the end product should be used in explosion protection areas the following information can be used: The module itself is unfused. The maximum output power of the module is 6 dBm for external antenna and 4 dBm for internal antenna. -
Page 41: Important Notes
Product life cycle Due to technical progress and economical evaluation we also reserve the right to discontinue production and delivery of products. As a standard reporting procedure of the Product Termination Notification (PTN) according to the JEDEC-Standard we will inform at an early stage about inevitable product discontinuance. -
Page 42: License Terms
WIRELESS CONNECTIVITY & SENSORS User manual Ophelia-III provided information related to their accuracy, correctness, completeness, usage of the products and/or usability for customer applications. Information published by Würth Elektronik eiSos GmbH & Co. KG regarding third-party products or services does not constitute a license to use such products or services or a warranty or endorsement thereof. - Page 43 Elektronik eiSos homepage for any updates. Your continued usage of the products will be deemed as the acceptance of the change. We recommend you to be updated about the status of new firmware and software, which is available on our website or in our data sheet and manual, and to implement new software in your device where appropriate.
- Page 44 Ophelia-III ........