eco power design ECOEWI 2.4 GHz Transceiver User Manual EWI Module
eco power design llc 2.4 GHz Transceiver EWI Module
Contents
- 1. Addentum
- 2. Manual r1
Manual r1
| Download: |  |
| Mirror Download [FCC.gov] | |
| Document ID | 2273568 |
| Application ID | /zo3AfATEeE2t2wAGCo8Gg== |
| Document Description | Manual r1 |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 41.46kB (518220 bits) |
| Date Submitted | 2014-05-21 00:00:00 |
| Date Available | 2014-05-21 00:00:00 |
| Creation Date | 2014-05-19 10:33:51 |
| Producing Software | Acrobat Distiller 7.0 (Windows) |
| Document Lastmod | 2014-05-19 10:33:51 |
| Document Title | Microsoft Word - EWI Module User Manual.doc |
| Document Creator | PScript5.dll Version 5.2 |
| Document Author: | Administrator |
Eco Power Design EWI User manual 2.4 GHz IEEE Std. 802.15.4™ Transceiver Module 2.4 GHz IEEE Std. 802.15.4TM 5 dBm RF Transceiver Module APPLICATIONS • • • • • • • • IEEE 802.15.4 systems ZigBee® systems Industrial monitoring and control Home and building automation Automatic Meter Reading Low-power wireless sensor networks Set-top boxes and remote controls Consumer electronics Radio • • • • • KEY FEATURES • • • • • • • • • • State-of-the-art selectivity/co-existence Adjacent channel rejection: 49 dB Alternate channel rejection: 54 dB Excellent link budget (103dB) 400 m Line-of-sight range Extended temp range (-40 to +125°C) Wide supply range: 1.8 V – 3.8 V Extensive IEEE 802.15.4 MAC hardware support to offload the microcontroller AES-128 security module CC2420 interface compatibility mode Low Power • • • • RX (receiving frame, -50 dBm) 18.5 mA TX 33.6 mA @ +5 dBm TX 25.8 mA @ 0 dBm <1µA in power down FIGURE 1: • IEEE 802.15.4 compliant DSSS baseband modem with 250 kbps data rate Excellent receiver sensitivity (-98 dBm) Programmable output power up to +5 dBm RF frequency range 2394-2507 MHz Suitable for systems targeting compliance with US radio frequency regulations, FCC CFR47 Part 15 Microcontroller Support • • • • • • • • • Digital RSSI/LQI support Automatic clear channel assessment for CSMA/CA Automatic CRC 768 bytes RAM for flexible buffering and security processing Fully supported MAC security 4 wire SPI Interrupt generator Frame filtering and processing engine Random number generator Pin Diagram J1‐1 GND J2‐5 J1‐2 GND ENABLE J2‐4 J1‐3 3V3 INT J2‐3 J1‐4 NC SI J2‐2 J1‐5 ˉˉˉ CS SCK J2‐1 J1‐6 SO GND J2‐6 ˉˉˉˉˉˉˉˉˉˉˉ RESET ANT Table of Contents 1.0 DEVICE OVERVIEW 2.0 CIRCUIT DESCRIPTION 3.0 REGULATORY APPROVAL 12 4.0 ELECTRICAL CHARACTERISTICS 14 1.0 compliance testing, allowing quicker time to market. Device Overview The EWI module is a 2.4 GHz IEEE Std. 802.15.4™compliant, surface mount module with integrated crystal, internal voltage regulator, matching circuitry, and a monopole “whip” antenna. The EWI module operates in the non‐licensed 2.4 GHz frequency band. The integrated module design frees the integrator from extensive RF and antenna design, and regulatory The EWI module has received regulatory approvals for modular devices in the United States (FCC). Modular approval removes the need for expensive RF and antenna design, and allows the end user to place the EWI module inside a finished product and not require regulatory testing for an intentional radiator (RF transmitter). FIGURE 11: EWI block diagram EWI IEEE Std. 802.15.4™ Module CC2520 Phy MAC Monopole “whip” Antenna Interface Power Mgmnt SPI Digital I/O Power 32 MHz Crystal 1.1 Interface Description Figure 1‐1 shows a simplified block diagram of the EWI module. The module is based on the Texas Instrument CC2520 IEEE 802.15.4TM 2.4 GHz RF Transceiver IC. The module interfaces to many popular microcontrollers via a 4‐wire serial SPI interface, interrupt, enable, Reset, power and ground, as shown in Figure 1‐2. Table 1‐1 provides the pin descriptions. Data communications with the EWI module are documented in the “CC2520 DATASHEET 2.4 GHZ IEEE 802.15.4/ZIGBEE® RF TRANSCEIVER” (SWRS068 DECEMBER 2007). Refer to the CC2520 Data Sheet for specific serial interface protocol and register definitions. TABLE 11: Pin Description Pin Symbol Type Description J2‐6 GND Power Ground J2‐5 ˉˉˉˉˉˉˉˉˉˉˉ DI Global hardware Reset pin RESET J2‐4 J2‐3 J2‐2 J2‐1 J1‐6 J1‐5 ENABLE INT SI SCK SO ˉˉˉ CS J1‐4 NC J1‐3 3V3 J1‐2 GND J1‐1 GND Legend: DI DO DI DI DO DI External wake‐up trigger Interrupt pin to microcontroller Serial interface data input Serial interface clock Serial interface data output from CC2520 Serial interface enable ‐‐ No connection Power Power supply Ground Ground Ground Ground Pin type abbreviation: D = Digital, I = Input, O = Output FIGURE 12: Microcontroller to EWI Module Interface Microcontroller CC2520 1.2 Mounting Details FIGURE 14: Recommended PCB The EWI is a surface mountable module. Footprint Module dimensions are shown in Figure1‐ 3. The module Printed Circuit Board (PCB) is 0.032" thick with 0.1in connection pins as shown in fig 1‐3. Figure 1‐4 is a recommended host PCB footprint for the EWI. The EWI has a monopole “whip” antenna. For the best performance, follow the mounting details shown in Figure1‐5. It is recommended that the module be mounted with no metallic structures in the area marked in fig 1‐5 FIGURE 13: Module Details FIGURE 15: Mounting Details 2.0 Circuit Description The EWI is a complete 2.4 GHz IEEE Std. 802.15.4™ compliant surface mount module with integrated crystal, internal voltage regulator, matching circuitry, and a monopole “whip” antenna. The EWI module interfaces to many popular microcontrollers via a 4‐wire serial SPI interface, interrupt, wake, Reset, power and ground. Data communications with the EWI module are documented in the “CC2520 DATASHEET 2.4 GHZ IEEE 802.15.4/ZIGBEE® RF TRANSCEIVER” (SWRS068 DECEMBER 2007). Refer to the CC2520 Data Sheet for specific serial interface protocol and register definitions. 2.1 Schematic A schematic diagram of the module is shown in Figure 2‐1 and the Bill of Materials (BOM) is shown in Table 2‐1. The EWI module is based on the Texas Instruments CC2520 IEEE 802.15.4™ 2.4 GHz RF Transceiver IC (U1). The serial I/O (SCK, SI, SO and CS), RESET, ENABLE and INT pins are brought out to the module pins. Crystal, X1, is a 32 MHz resonator with a frequency tolerance of ±10 ppm @ 25°C to meet the IEEE Std. 802.15.4 symbol rate tolerance of ±40 ppm. FIGURE 21: EWI Schematic TABLE 21: EWI Bill Of Material Manufacturer (alt. Manuf.) Johanson Technology (Murata) Johanson Technology (Murata) Murata Murata Murata Murata Murata Murata Murata Murata Murata Murata Murata Ref Description C1 Capacitor 0402 0.9pF NP0 C2 C12 C3 C13 C8 C10 C5 C4 C6 C7 C9 C11 Capacitor 0402 1.5pF NP0 Capacitor 0402 1uF X5R Capacitor 0402 1.5pF NP0 Capacitor 0402 1.8pF NP0 Capacitor 0402 15pF NP0 Capacitor 0402 15pF NP0 Capacitor 0402 39pF NP0 Capacitor 0402 82pF NP0 Capacitor 0402 100nF X5R Capacitor 0402 100nF X5R Capacitor 0402 100nF X5R Capacitor 0402 100nF X5R Connector PLS‐6, 6pin 2.54mm pitch Connector PLS‐6, 6pin 2.54mm pitch Transceiver IEEE 802.15.4 TI Johanson Technology (Murata) Inductor 0402 3nH Johanson Technology (Murata) Inductor 0402 1.8nH Johanson Technology Inductor 0402 2.4nH (Murata) Resistor 0402 39 5% any Resistor 0402 56k 1% any 32MHz resonator, 8pF, 80 Ohm, 10ppm (25C), 15ppm (temperature range), ‐40...+85C, 3.2x2.5mm SJK 8pF, 10ppm (25C), ‐40...+85C, 3.2x2.5mm PDI 8pF, 50ppm (25C), ‐40...+125C, 3.2x2.5mm PDI J1 J2 D1 L1 L2 L3 R2 R1 X1 Part Number (alt. Part. No.) 500R07S0R9BV4S (GJM1555C1HR90BB01D) 500R07S1R5BV4S (GJM1555C1H1R5CB01D) GRM155R60J105KE19 GRM1555C1H1R5CZ01 GRM1555C1H1R8CZ01 GRM1555C1H150JZ01 GRM1555C1H150JZ01 GRM1555C1H390JZ01 GRM1555C1H820JZ01 GRM155R61A104KA01 GRM155R61A104KA01 GRM155R61A104KA01 GRM155R61A104KA01 CC2520RHDT L‐07C3N0SV6S (LQG15HN3N0S02D) L‐07C1N8SV6S (LQG15HN1N8S02D) L‐07C2N4SV6S (LQG15HN2N4S02D) SJK‐7U‐32.000‐08‐10‐60‐ C‐15 C332000XFAD08XX C332000XFCS08RX 2.2 Printed Circuit Board FIGURE 2-4: Bottom Copper The MRF24J40MB module printed circuit board is constructed with FR4 material, four layers and 0.032 inches thick. The layers are shown in Figure 2‐2 through Figure 2‐6. The stack up of the PCB is shown in Figure 2‐7. FIGURE 22: Top Silk Screen 2.3 FIGURE 23: Top Copper Monopole “whip” Antenna The EWI has a monopole “whip” antenna. The ground and power planes under the components serve as a counterpoise to the “whip” antenna. Additional ground plane on the host PCB will substantially enhance the performance of the module. For best performance, place the module on the host PCB following the recommendations in Section 1.2 “Mounting Details”. The design goal was to create a compact, low‐cost antenna with the best radiation pattern. Figure 2‐9 shows the simulation drawing and Figure2‐10 and Figure2‐11 show the 2D and 3D radiation patterns, respectively. As shown by the radiation patterns, the performance of the antenna is dependant upon the orientation of the module. Figure 2‐12 shows the impedance simulation and Figure 2‐13 shows the SWR simulation. The discrete matching circuitry matches the impedance of the antenna with the CC2520 transceiver IC. 3.0 Regulatory Approval The EWI module has received regulatory approvals for modular devices in the United States. Modular approval allows the end user to place the EWI module inside a finished product and not require regulatory testing for an intentional radiator (RF transmitter), provided no changes or modifications are made to the module circuitry. Changes or modifications could void the user’s authority to operate the equipment. The end user must comply with all of the instructions provided by the Grantee, which indicate installation and/or operating conditions necessary for compliance. The integrator may still be responsible for testing the end product for any additional compliance requirements required with this module, installed (for example: digital device emission, PC peripheral requirements, etc.) in the specific country that the end device will be marketed. Annex F of the IEEE Std. 802.15.4 document has a good summary of regulatory requirements in various countries concerning IEEE Std. 802.15.4 devices. The standard can be downloaded from the IEEE Standards web page: http://standards.ieee.org/getieee802 /802.15.html. Refer to the specific country radio regulations for details on regulatory compliance. 3.1 United States The EWI module has received Federaö Communications Commission (FCC ) CFR47 Telecommunications, Part 15 Subpart C “Intentional Radiators” 15.247 and modular approval in accordance with FCC Public Notice DA 00‐1407 Released: June 26, 2000, Part 15 Unlicensed Modular Transmitter Approval. The EWI module can be integrated into a finished product without obtaining subsequent and separate FCC approvals. The EWI module has been labeled with its own FCC ID number, and if the FCC ID is not visible when the module is installed inside another device, then the outside of the finished product into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains Transmitter Module FCC ID: OA3EWI ‐or‐ Contains FCC ID: OA3EWI This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 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. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ‐ Reorient or relocate the receiving antenna. ‐ Increase the separation between the equipment and receiver. ‐ Connect the equipment in to an outlet on a circuit different from that to which the receiver is connected. ‐ Consult the dealer or an experienced radio/TV technician for help. 3.1.1 EWI Settings To meet the FCC requirements, the following settings must be observed by the integrator: • The EWI transmit power setting (RFCON3 0x203) cannot exceed ‐1.9 dB. • Only channels 11 through 25 may be selected (RFCON0 0x200). Federal Communications Commission (FCC). The bulletin offers guidelines and suggestions for evaluating compliance. If appropriate, compliance with exposure guidelines for mobile and unlicensed devices can be accomplished by the use of warning labels and by providing users with information concerning minimum separation distances from transmitting structures and proper installation of antennas. The following statement must be included as a CAUTION statement in manuals and OEM products to alert users of FCC RF exposure compliance: To satisfy FCC RF exposure requirements for mobile and base station transmission devices, a separation distance of 20 cm or more should be maintained between the antenna of this device and persons during operation. To ensure compliance, operation at closer than this distance is not recommended. The antenna(s) used for this transmitter must not be co‐located or operating in conjunction with any other antenna or transmitter. 3.1.2 RF Exposure All transmitters regulated by FCC must comply with RF exposure requirements. OET Bulletin 65 “Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields” provides assistance in determining whether proposed or existing transmitting facilities, operations or devices comply with limits for human exposure to Radio Frequency (RF) fields adopted by the If the EWI module is used in a portable application (antenna is less than 20 cm from persons during operation), the integrator is responsible for performing Specific Absorption Rate (SAR) testing in accordance with FCCrules 2.1091. 3.1.3 Helpful Web Sites Federal Communications Commission (FCC): http://www.fcc.gov 4.0 Electrical Characteristics TABLE 41: Recommended Operating Conditions Parameters Min Ambient Operating Temperature Supply Voltage for RF, Analog and Digital Circuits ‐40 1.8 Supply Voltage for Digital I/O Input High Voltage Input Low Voltage 30% Typ Max Units 125 3.8 °C 80% of VDD of VDD TABLE 42: Current Consumption TA =25°C, VDD=3.0 V, fc =2440 MHz if nothing else stated. All parameters measured on Texas Instruments’ CC2520 EM 2.1 reference design with 50 Ω load Parameter Receive current Transmit current Active Mode current LPM1 current LPM2 current Condition Wait for sync TA=‐40 to 125°C, VDD=1.8 to 3.8 V, fc =2394 to 2507 MHz Wait for sync, Low‐current RX setting Receving frame, ‐50 dBm input level 0 dBm setting +5 dBm setting TA=‐40 to 125°C, VDD=1.8 to 3.8 V, fc =2394 to 2507 MHz XOSC on, digital regulator on. TA=‐40 to 125°C, VDD=1.8 to 3.8 V, fc =2394 to 2507 MHz XOSC off, digital regulator on. State retention. TA=‐40 to 125°C, VDD=1.8 to 3.8 V, fc =2394 to 2507 MHz XOSC off, digital regulator off. No state retention. TA=‐40 to 125°C, VDD=1.8 to 3.8 V, fc =2394 to 2507 MHz Min Typ Max Units 22.3 24.8 mA 26.3 18.8 18.8 25.8 28.8 33.6 37.2 mA mA mA mA mA 1.6 37.5 1.9 mA mA 175 2.6 250 mA µA 1000 µA 120 nA 4.5 µA 30 TABLE 43: Receiver AC Characteristics TA =25°C, VDD=3.0 V, fc =2440 MHz if nothing else stated. All parameters measured on Texas Instruments’ CC2520 EM 2.1 reference design with 50 Ω load. Parameter Receiver sensitivity Saturation Interferer Rejection Condition [2] requires ‐85 dBm TA=‐40 to 125°C, VDD=1.8 to 3.8V, fc =2394 to 2507 MHz [2] requires ‐20 dBm 6 dBm Wanted signal 3 dB above the sensitivity level, 802.15.4 modulated interferer at 802.15.4 channels: ±5 MHz from wanted signal. [2] requires 0 dB Min Typ Max Units ‐99 ‐98 ‐88 dBm 49 dB 54 dB 30 – 1000 MHz 55 < ‐80 dB dBm 1 – 12.75 GHz ‐56 dBm dB ±10 MHz from wanted signal. [2] requires 30 ±20MHz or above. Wanted signal at ‐82dBm. Maximum Spurious Emission Conducted measurement in a 50Ω single ended load. Complies with EN 300 328, EN 300 440 class 2, FCC CFR47, Part 15 and ARIB STD‐T‐66 Frequency error tolerance IIP3 ‐95 Input level is 3 dB above sensitivity level. +/‐400 kHz ‐24 dBm TABLE 44: Transmitter AC Characteristics Condition Parameter Min Typ Max Units Output power 0 dBm setting ‐3 dBm Note: to reduce the output power variation over temperature, it is suggested that different +5 dBm setting dBm dBm TA=‐40 to 85°C, VDD=2.0 to 3.8 V, fc =2394 to 2507 MHz TA=‐40 to 85°C , VDD=1.8 to 3.8 V, ‐3 settings are used at different temperatures. The on‐chip temperature sensor can be used for this purpose. Please see section 5.11 for more information. Largest spurious emission at maximum output power. Texas Instruments CC2520 EM reference design complies with EN 300 328, EN 300 440, FCC CFR47 Part 15 and ARIB STDT‐66. Transmit on 2480 MHz under FCC at +5 dBm is supported by duty‐cycling, or by reducing output power. The peak conducted spurious emission might violate ETSI and FCC restricted band limits at frequencies below 1GHz. All radiated spurious emissions are within the limits of ETSI/FCC/ ARIB. Applications that must pass conducted requirements are suggested to use a simple 50 fc =2394 to 2507 MHz ‐4 dBm TA=‐40 to 125°C, VDD=2.0 to 3.8 V, fc =2394 to 2507 MHz ‐6 dBm TA=‐40 to 125°C, VDD=1.8 to 3.8 V, fc =2394 to 2507 MHz ‐9 dBm 25 MHz – 1 GHz (outside restricted bands) ‐40 dBm 25 MHz – 1 GHz (within FCC restricted bands) ‐53 dBm 47‐74, 87.5‐118, 174‐230, 470‐862 MHz (ETSI restricted bands) ‐42 dBm 1800 MHz‐1900 MHz (ETSI restricted band) ‐56 dBm 5150 MHz‐5300 MHz (ETSI restricted band) ‐54 dBm At 2483.5 MHz and above (FCC restricted band) fc=2480 MHz, +5 dBm fc=2480 MHz, 0 dBm ‐37 ‐41 dBm dBm At 2·RF and 3·RF (FCC restricted band) ‐54 dBm Ω high pass filter between matching network and RF connector. Error Vector Magnitude (EVM) [2] requires max. 35%. Measured as defined by [2]. +5 dBm setting. fc =IEEE 802.15.4 channels 0 dBm setting. fc =IEEE 802.15.4 channels
Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.4 Linearized : Yes XMP Toolkit : 3.1-701 Producer : Acrobat Distiller 7.0 (Windows) Create Date : 2014:05:19 10:33:51+08:00 Creator Tool : PScript5.dll Version 5.2 Modify Date : 2014:05:19 10:33:51+08:00 Format : application/pdf Creator : Administrator Title : Microsoft Word - EWI Module User Manual.doc Document ID : uuid:3b140b90-8a64-42f6-ab42-fe05b84add14 Instance ID : uuid:c3cd982a-a746-428f-a0bf-01ff95a22072 Page Count : 17 Author : AdministratorEXIF Metadata provided by EXIF.tools