2016-03-18 NUR-10W HW Implementation Guide v1.
016-03-18 NUR-10W HW Implementation Guide v1.4 Change history: Version Date Author Remarks 1.0 16.4.2014 Toni Heijari First released version 1.1 26.10.2015 Toni Heijari Added 6.5 and 6.6, modified sections 5.3, 5.3 and 9.4. 1.2 26.01.2016 Jarmo Nurmela Updated Regulatory agency information agency information section 1.3 8.2.2016 Toni Heijari Updated section 4.1. 1.4 4.3.
2016-03-18 NUR-10W HW Implementation Guide v1.4 Table of contents 1 2 3 4 GENERAL DESCRIPTION ......................................................................................................................... 5 1.1 Block diagram .................................................................................................................................... 5 1.2 Key features ...................................................................................................................
2016-03-18 NUR-10W HW Implementation Guide v1.4 8 9 7.1 Input / output.................................................................................................................................... 25 7.2 Predefined functions ........................................................................................................................ 25 DIAGNOSTIC FUNCTIONS ..............................................................................................................................
2016-03-18 NUR-10W HW Implementation Guide v1.4 1 GENERAL DESCRIPTION NUR-10W is a next generation compact UHF RFID reader / writer module. It is compatible with ISO18000-6C (EPC C1G2) standard. Module fulfills ETSI, FCC and IC radio regulations. It is also compatible with DRM (dense reader mode) requirements. Maximum output power is +30dBm and it can be adjusted via SW API with 1 dB steps. Maximum sensitivity LBT / data is -80/-70 dBm. The sensitivity can also be adjusted. 1.1 BLOCK DIAGRAM Figure 1.
2016-03-18 NUR-10W HW Implementation Guide v1.4 1.3 TYPICAL APPLICATION SCHEMATICS Typical application schematic including: USB connection with ESD protection circuitry, 2 GPIO outputs for LED indicators, GPIO trigger input, NUR-10W module and MMCX antenna connector. Figure 2. A simple application schematic.
2016-03-18 NUR-10W HW Implementation Guide v1.4 2 ELECTRICAL CHARACTERISTICS 2.1 ABSOLUTE MAXIMUM RATINGS Violating these values may cause damage to the module. Also correct operation is not guaranteed if operating outside these values. NUR-10W is ESD sensitive component so it must be handled with care. Table 1. Absolute maximum ratings of the module.
2016-03-18 NUR-10W HW Implementation Guide v1.4 Dtr Tag to reader data rates 20 64 320 kbps *Sensitivity is measured at the RF-port of the module with leakage cancellation activated. The actual receiver sensitivity is 10dB better due to 10dB coupler loss in RX-path. 2.4 PERFORMANCE CHARACTERISTICS The performance of the reader module is highly dependent on the test environment, reader antenna and tag performance.
2016-03-18 NUR-10W HW Implementation Guide v1.4 3 PIN ASSIGNMENTS 3.1 PIN DESIGNATION Figure 3. Through top view. 3.2 PIN MAPPING Table 5. Pin mapping of the module. 9 Pin number Signal name Pin type Description 1 RFU Bidirectional RFU (do not connect) 2 GPIO_5 Bidirectional 3.3V GPIO 3 GPIO_4 Bidirectional 3.3V GPIO 4 GPIO_3 Bidirectional 3.3V GPIO 5 GPIO_2 Bidirectional 3.3V GPIO 6 GPIO_1 Bidirectional 3.
2016-03-18 NUR-10W HW Implementation Guide v1.
2016-03-18 NUR-10W HW Implementation Guide v1.4 3.3 SIGNAL DESCRIPTION Table 6. Signal description. Signal name: GND Pin number(s): 15, 20-26, 28, 30, 33-46, 48, 50 These pins are used for grounding and to improve the thermal performance. They should be connected to Host board GND net. Signal name: GPIO_X Pin number(s): 2-6 These pins are used as general purpose IO. They can be configured via SW API as input or output ports. IO voltage level is 3.3V.
2016-03-18 NUR-10W HW Implementation Guide v1.4 Signal name: NC Pin number(s): 16, 31, 32 These pins are internally not connected. Signal name: VCC_3V6_IN Pin number(s): 17 This pin is used for power supply input for NUR-10W module. It is recommended to use 200µF (low ESR) 100nF and 100pF capacitor near the VCC_3V6_IN input pin to maintain stable operating voltage for the reader module. Signal name: RFU / RFU/RF Pin number(s): 1, 18, 19, 27, 29, 49 These pins are reserved for future use.
2016-03-18 NUR-10W HW Implementation Guide v1.4 4 OEM DESIGN CONSIDERATIONS 4.1 RF OUTPUT AND ANTENNA REQUIREMENTS The RF output / input impedance is 50Ω so the trace leaving from the RF pin shall be kept in that same impedance level to avoid reflections and mismatch of the RF signal. From the RFID reader module’s point of view it is important that the used antenna has a low VSWR value. The VSWR shall be better than 1.
2016-03-18 NUR-10W HW Implementation Guide v1.4 performance from the device. Poor layout design can decrease the output power, sensitivity and cause mask violations. 4.1.2 TRANSMISSION LINE The RF signal from the module is routed to antenna connector using a grounded CPW structure. This is to achieve the maximum isolation and RF shielding to RF lines. Also GND vias should be added along the line to give additional shielding. Figure 5. Grounded CPW with via stitching. Table 7.
2016-03-18 NUR-10W HW Implementation Guide v1.4 VCC_3V3_OUT is internal regulator output and it is used for production testing purposes. This pin should not be used to power external circuits. 4.3 USB DEVICE PORT USB_DP, USB_DN and USB_DET pins are used to provide 2.0 compliant USB device port. It must be remembered that only one communication method can be used to communicate with the NUR-10W module at the time. Connecting the USB will automatically prevent communication via serial port.
2016-03-18 NUR-10W HW Implementation Guide v1.4 5 5.1 RF PARAMETERS TX LEVEL The maximum output power is +30dBm (1000mW). The power can be adjusted by 1dB steps. In total there are 19 steps meaning the minimum output power value is +11dBm that equals to 13mW of power. When using higher output power levels the antennas VSWR value becomes more and more important factor.
2016-03-18 NUR-10W HW Implementation Guide v1.4 5.3 LEAKAGE CANCELLATION (AKA ANTENNA TUNING) The directional coupler of the internal leakage cancellation circuitry separates transmitted and received signals. Tuning the directional coupler increases the isolation between TX and RX signals. You may tune the directional coupler using software; there is an API function of its own for that purpose.
2016-03-18 NUR-10W HW Implementation Guide v1.4 Tag to reader data rate = (Link frequency / Miller coding) By default the link frequency is set to 256 kHz. 256 kHz or 320 kHz settings must be used when operating in DRM mode. It must be remembered that changing these parameters may cause reader to violate region or country specific radio regulations. Following is a guideline for how to choice right setting.
2016-03-18 NUR-10W HW Implementation Guide v1.4 5.7 160 M2 80 160 M4 40 160 M8 20 256 FM0 256 256 M2 128 256 M4 64 256 M8 32 320 FM0 320 320 M2 160 320 M4 80 320 M8 40 REGION The NUR-10W has predefined region settings defining frequency and channel sets for operating under different radio regulations. Globally the regulations vary depending on the country or part of the world.
16-03-18 NUR-10W HW Implementation Guide v1.4 16 Morocco 867.7 – 867.9 MHz / 200kHz 17 Peru 915.25 – 927.75 MHz / 500kHz 18 Custom 840 – 960 MHz For experimental purposes, it is possible to use custom frequencies and hop tables. Please contact Nordic ID for further information on how it is possible in your case.
2016-03-18 NUR-10W HW Implementation Guide v1.4 6 6.1 READING PARAMETERS Q-VALUE The Q-value defines the amount of open response slots that tags can use per one inventory round. Number Q of slots can be calculated by formula 2 . It is advised to use twice as much slots compared to amount of tags that you have in your readers reading field simultaneously. Selectable values are 0 – 15 and value 0 means automatic Q-value adjustment.
2016-03-18 NUR-10W HW Implementation Guide v1.4 Table 14. Persistence characteristics of gen2 tags. Flag Persistence: tag power ON Persistence: tag power OFF S0 indefinite none S1 500ms < t < 5s 500ms < t < 5s S2 indefinite t > 2s S3 indefinite t > 2s By changing the target setting from A target to B target reader is able to read also tags that has flipped its state to B state. This would happen if tags would have been read recently using Session 1 2 or 3.
2016-03-18 NUR-10W HW Implementation Guide v1.4 Besides Q-value one important parameter is session. In general it could be stated that if the size of tag population is measured in thousands rather than in hundreds it is wise to use sessions 2 or 3. Because then every tag will be read only once and that makes large tag population much faster and easier to read. When using session 2 or 3 it is advised to use Miller 8 encoding scheme to avoid data transfer errors as much as possible.
2016-03-18 NUR-10W HW Implementation Guide v1.4 Figure 8. Read range limited by RSSI filter (100mW TX power and 0dBi antenna gain) 6.6 DYNAMIC POWER SAVE MODES NUR-10W module has power save modes which can be enabled via SW API. By default the power save is ON with depth of 100ms. Other depths are 500ms and 1000ms. The power save mode works in a way that when module reads continuously (applies only when using inventory stream -command) it goes to sleep if there is no tags in the field.
2016-03-18 NUR-10W HW Implementation Guide v1.4 7 GPIO CONFIGURATIONS NUR-10W has 5 programmable GPIOs. All of them can be used as an input or output. They can be also configured to have different predefined functions. 7.1 INPUT / OUTPUT All GPIOs can be configured via SW API to be inputs or outputs. IO voltage level is 3.3V and maximum source current is 3mA and sink current 6mA. When configured as input SW API can check what the state (high / low) of the GPIO pin is.
2016-03-18 NUR-10W HW Implementation Guide v1.4 function can be used for example driving a LED indicator. Note that this function requires a “scan tag” or “inventory” trigger from another GPIO pin set as an input. Beeper (GPIO type: OUTPUT) When “beeper” function is used will GPIO pin drive high for a short period of time after a timeout has surpassed after last successful tag reading. The timeout can be defined as a parameter for the function.
2016-03-18 NUR-10W HW Implementation Guide v1.4 second one to be “antenna control 2”. Via the SW API it’s possible to select which of the connected antennas are enabled and used or let the module automatically switch between them. Table 19. 4 Port antenna control truth table. 8 8.
2016-03-18 NUR-10W HW Implementation Guide v1.4 value of the tags backscatter signal. NUR-10W module automatically adjusts receiver according to output power levels. Causing that maximum and minimum absolute RSSI power levels will vary depending from the used output power levels. That is why scaled RSSI value is also available. Scale is 0 – 100. 9 9.
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2016-03-18 NUR-10W HW Implementation Guide v1.4 9.4 PACKING TRAY DIMENSIONS All measures are in mm.
2016-03-18 NUR-10W HW Implementation Guide v1.4 10 SMT ASSEMBLY PROCESS AND THERMAL PROCESSING NUR-10W module contains single sided assembly of SMT components reflow-soldered on multilayer HDI (high density interconnections) glass-fiber re-enforced epoxy printed board. The bottom side terminations are ENIG (NiP/Au) plated. Soldering alloy used for attaching module components is eutectic SnAgCu. Module internal components soldering has been optimized for minimal thermal stress.
2016-03-18 NUR-10W HW Implementation Guide v1.4 MSL level and open time MSL level 5 Open time (floor life out of the 48h bag) 10.2 SOLDERING PROCESS Boundary conditions Acceptable soldering methods Convection reflow in air or nitrogen atmosphere Condensation reflow soldering (vapor phase) Recommended stencil thickness 125um ±10um Pad design on motherboard See recommended pad pattern Stencil openings See recommended stencil pattern Recommended solder alloy SnAg3.8±0.2Cu0.7±0.
2016-03-18 NUR-10W HW Implementation Guide v1.4 -delta T on assembly max. 10°C at end of preheating Soldering phase -total duration 190s -max. time above 217°C (mp.) 30s -Tpeak max. 235°C, measured at module bottom -Tpeak max.
2016-03-18 NUR-10W HW Implementation Guide v1.4 11 REGULATORY AGENCIES INFORMATION When OEM prefers to leverage Nordic ID’s grants and certifications of the NUR-10W UHF RFID module, the host device documentation shall include regulatory compliance information on the NUR-10W module. Corresponding to the applicable regulatory agencies the following sections outline regulatory compliance information needed in the user documentation and external labels for the host devices into which the NUR10W is integrated.
2016-03-18 NUR-10W HW Implementation Guide v1.4 Česky [Czech] [name of manufacture] tímto prohlašuje, že tento [type of apparatus] je ve shodě sezákladními požadavky a dalšími příslušnými ustanoveními směrnice1999/5/ES. Dansk [Danish] Undertegnede [name of manufacture] erklærer herved, at følgende udstyr [type of apparatus] overholder de væsentlige krav og øvrige relevante krav i direktiv 1999/5/EF.
2016-03-18 NUR-10W HW Implementation Guide v1.4 Italiano [Italian] Con la presente [name of manufacture] dichiara che questo [type of apparatus] è conforme ai requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva 1999/5/CE. Latviski [Latvian] Ar šo [name of manufacture] deklarē, ka [type of apparatus] atbilst Direktīvas 1999/5/EK būtiskajām prasībām un citiem ar to saistītajiem noteikumiem.
2016-03-18 NUR-10W HW Implementation Guide v1.4 [name of manufacture] declara que este [type of apparatus] está conforme com os requisitos essenciais e outras disposições da Directiva 1999/5/CE. Slovensko [Slovenian] [name of manufacture] izjavlja, da je ta [type of apparatus] v skladu z bistvenimi zahtevami in ostalimi relevantnimi določili direktive 1999/5/ES.
2016-03-18 NUR-10W HW Implementation Guide v1.4 11.2 FCC This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
2016-03-18 NUR-10W HW Implementation Guide v1.4 If the antenna being one of the approved antenna types has lower antenna gain than the type’s maximum one, the minimum separation distance (d in cm) can be calculated by giving the EIRP (in mW) of the -2 configuration and the maximum permissible exposure (S = 0.61 mWcm ) to the following formula: d = √(EIRP/(4πS)). However, despite the fact that the result of the calculation can be below 20 cm, the separation distance of 20 cm is always the minimum.
2016-03-18 NUR-10W HW Implementation Guide v1.4 For the User’s Guide the required FCC statements outlined in the User’s Guide Requirements section must be in a prominent location. USER’S GUIDE REQUIREMENTS The texts in quotation marks below are the required FCC statements in the user’s guide. The note given in brackets is not an FCC statement but it gives the required information on the first required FCC statement.
2016-03-18 NUR-10W HW Implementation Guide v1.4 Manufacturer Part Number: ARx5_antenna Gain: 6dBi Manufacturer: Nordic ID Antenna Description: Cross Dipole antenna with reflector Frequency range: 902 – 928 MHz Manufacturer Product Name: Medea_ACD_antenna Gain: 5dBi Option 2: Option 3: Manufacturer: TBD Antenna Description: TBD Frequency range: TBD Manufacturer Product Name: TBD Gain: TBD 11.3 INDUSTRY CANADA This device complies with Industry Canada licence-exempt RSS standard(s).
2016-03-18 NUR-10W HW Implementation Guide v1.4 antenna types has lower antenna gain than the type’s maximum one, the minimum separation distance (d in -2 cm) can be calculated by giving the EIRP of the configuration and the exposure limit (S = 0.276676 mWcm ) to the following formula: d = √(EIRP/(4πS)). However, despite the fact that the result of the calculation can be below 20 cm, the separation distance of 20 cm is always the minimum.
2016-03-18 NUR-10W HW Implementation Guide v1.4 type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.
2016-03-18 NUR-10W HW Implementation Guide v1.4 1. Les antennes, qui seront des types approuvés avec le gain maximal de 5 dBi et de 6 dBi, seront installées de telle sorte que l’utilisateur de l’appareil ou les personnes à proximité ou les personnes de passage ne pourront compromettre la distance minimale de séparation de 30 cm et de 34 cm, respectivement, en aucune circonstance.
2016-03-18 NUR-10W HW Implementation Guide v1.4 TYPES D'ANTENNES ACCEPTABLES Le présent émetteur radio (IC: 5137A-NUR10W) a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés ci-dessous et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur.
