Reference Manual

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Table Of Contents

Document Number: USB-KW2XHWRM

Rev. 0.1

03/2014

USB-KW2X Hardware

Reference Manual

Summary of content (28 pages)

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USB-KW2X Hardware Reference Manual Document Number: USB-KW2XHWRM Rev. 0.
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How to Reach Us: Home Page: freescale.com Web Support: freescale.com/support Information in this document is provided solely to enable system and software implementers to use Freescale products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits based on the information in this document. Freescale reserves the right to make changes without further notice to any products herein.
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About This Book Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Chapter 1 Safety Information 1.1 1.1.1 1.1.2 1.1.3 1.
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.3 4.4 4.5 4.6 4.7 4.8 4.9 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Solder Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Silk Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical PCB Testing . . . . . . . . . . . . . . . . .
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About This Book This manual describes Freescale’s MKW2xDxxx development platform hardware. The MKW2xDxxx is an IEEE® 802.15.4 compliant evaluation environment based on the Freescale MKW2xDxxx device. The MKW2xDxxx family is Freescale's latest generation ZigBee™ platform, which incorporates a complete low power 2.4 GHz radio frequency transceiver and a Kinetis family low power, mixed-signal ARMR eCortex™- M4 MCU into a single package.
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Definitions, Acronyms, and Abbreviations The following list defines the acronyms and abbreviations used in this document. ADC Analog to Digital Converter AES Advanced Encryption Standard CTS Clear to Send DAC Digital to Analog Converter I2C Inter-Integrated Circuit is a multi-master serial computer bus ISM Industrial Scientific Medical 2.
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Chapter 1 Safety Information 1.1 FCC Guidelines This equipment is for use by developers for evaluation purposes only and must not be incorporated into any other device or system. This device may not be sold to the general public. Integrators will be responsible for reevaluating the end product (including the transmitter) and obtaining a separate FCC authorization. FCC approval of this device only covers the original configuration of this device as supplied.
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Safety Information installed, such as perimeter protection systems and some field disturbance sensors, or to other intentional radiators which, in accordance with Section 15.31(d), must be measured at the installation site. However, the installer is responsible for ensuring that the proper antenna is employed so that the limits in this Part are not exceeded. 1.2 Regulatory Approval For Canada (IC RSS 210) This device complies with Industry Canada licence-exempt RSS standard(s).
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Chapter 2 USB-KW24D512 Development Platform Overview and Description 2.1 Introduction The USB-KW24D512 development platform is an evaluation environment based on the Freescale MKW24D512 SIP device (MKW2x). The MKW2x device family is Freescale's latest generation ZigBee™ platform which incorporates a complete low power IEEE® 802.15.4 Standard 2.4 GHz radio frequency transceiver and a Kinetis family low power, mixed-signal ARM Cortex™- M4 MCU into a single package.
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USB-KW24D512 Development Platform Overview and Description Figure 2-1. USB-KW24D512 The USB-KW24D512 development platform includes the following Features: • Freescale’s low-power MKW24D512 SIP ZigBee™ platform • Fully compliant IEEE 802.15.4 Standard 2006 transceiver supports 250 kbps O-QPSK data in 5.0 MHz channels and full spread-spectrum encode and decode.
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USB-KW24D512 Development Platform Overview and Description 2.3 Software and Driver Considerations Install the BeeKit Wireless Connectivity Toolkit package found under Software and Tools at the following URL before proceeding to use the boards: • www.freescale.com\zigbee When users first connect a KW2x based platform to a PC, they may be prompted to install drivers. Platform drivers can be found under the installation Beekit folder as denoted below.
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USB-KW24D512 Development Platform Overview and Description USB-KW2x Hardware Reference Manual, Rev. 0.
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Chapter 3 USB-KW24D512 3.1 USB-KW24D512 Overview The USB-KW24D512 is an evaluation board based on the Freescale MKW24D512 device. The USB-KW24D512 provides a platform to evaluate the USB-KW24D512 SIP IC, develop software and applications. The core device is accompanied by the 32 MHz reference oscillator crystal, RF circuitry including a printed board antenna, and supporting circuitry.
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USB-KW24D512 Figure 3-2. USB-KW24D512 Top Side (Component Side) Footprint 3.1.3 Board Level Specifications Table 3-1. USB-KW24D512 Specifications Parameter Min Typ Max Units 61.4 x 18.5 2.42 x 0.73 mm inches Notes/Conditions General Size (PCB: X, Y) Layer build (PCB) 1.57 0.062 mm 4-Layer inches Dielectric material (PCB) FR4 Power Current consumption mA Refer to datasheet • Operating temperature is limited to +70 °C due to switches.
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USB-KW24D512 Table 3-1. USB-KW24D512 Specifications (continued) Parameter RF Power Output Min Typ -32 Max Units Notes/Conditions +8 dBm Programmable in 2dB steps. At the antenna feed with no trap. 1. 2nd harmonic <-50 <-40 dBm Datasheet 3rd harmonic <-50 <-40 dBm Datasheet Regulatory Approval FCC Product is approved accordingly to the FCC part 15 standard CE (ETSI) Product is approved accordingly to the EN 300 328 V1.7.
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USB-KW24D512 Figure 3-3. USB-KW24D512 Block Diagram 3.2.1 RF Performance and Considerations USB-KW24D512 transceiver includes a 1mW nominal output power, PA with internal voltage controlled oscillator (VCO), integrated transmit/receive switch, on-board power supply regulation, and full spread-spectrum encoding and decoding. The USB-KW24D512 utilizes a minimum number of components while providing good RF performance.
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USB-KW24D512 3.2.2 Clocks The USB-KW24D512 provides one clock: • 32 MHz Reference Oscillator — Figure 3-5 shows the external 32 MHz external crystal Y1. This mounted crystal must meet the specifications outlined in the AN3251 application note. The IEEE 802.15.4 Standard requires that the frequency be accurate to less that +/-40 ppm. — Capacitors C10 and C11 provide the bulk of the crystal load capacitance. Onboard trim capacitors can be programmed to center the frequency.
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USB-KW24D512 Figure 3-6. USB-KW24D512 Power Management Circuit The USB-KW24D512 is powered via the USB type A connector as shown in Figure 3-6., “USB-KW24D512 Power Management Circuit”; the MKW24D512 device has an on-board USB port which is configured to provide both power and serial communication with the target MCU. 3.2.
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Freescale Semiconductor 3.3 Schematic, Board Layout, and Bill of Material Figure 3-7. USB-KW24D512 Schematic 5 4 3 2 1 V_MCU 3V3 IN CIRCUIT TEST GND PROBING V_USB C1 5pF C2 1000pF C3 0.33UF TP28 DNP VDD_RF VDD_RF V_MCU V_MCU VDD_IF D VREFH C5 1000pF C4 5pF V_MCU VDD_PA SH1 VDD_IF C8 0.1UF C24 1000pF GND C13 0.33UF D C12 33PF C7 0.1UF DNP VDD_REGD C26 5pF VDD_PA C6 0.1UF 0 C9 0.
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USB-KW24D512 Figure 3-8. USB-KW24D512 Reference Board PCB Component Location (Top View) Figure 3-9. USB-KW24D512 Reference Board PCB Test Points Figure 3-10. USB-KW24D512 Reference Board PCB Layout (Top View) USB-KW2x Hardware Reference Manual, Rev. 0.
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USB-KW24D512 Figure 3-11. USB-KW24D512 Reference Board PCB Layout (Bottom View) 3.3.1 Bill of Materials Table 3-2. Bill of Materials (Common parts for all frequency bands) (Sheet 1 of 3) Item Qty Reference Value Description Mfg. Name Mfg.
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USB-KW24D512 Table 3-2. Bill of Materials (Common parts for all frequency bands) (Sheet 2 of 3) Item Qty Reference Value Description Mfg. Name Mfg. Part Number 13 2 C25,C27 DNP 47PF CAP CER 47PF 16V 5% C0G 0402 AVX 0402YA470JAT2A 14 1 C29 2.2UF CAP CER 2.
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USB-KW24D512 Table 3-2. Bill of Materials (Common parts for all frequency bands) (Sheet 3 of 3) Item Qty Reference Value Description Mfg. Name Mfg. Part Number TP1,TP2,TP3, TP4,TP5,TP6, TP7,TP8,TP9, TP10,TP11,TP 12,TP13,TP14 ,TP15,TP16,T P17,TP18 TPAD_040 TEST POINT PAD 40MIL DIA SMT, NO PART TO ORDER 1 TP19 TPAD_030 TEST POINT PAD 30MIL DIA SMT, NO PART TO ORDER 37 1 TP28 DNP TEST POINT WHITE TEST POINT WHITE 40 MIL DRILL 180 MIL TH 109L 38 1 U1 MKW24D51 IC MCU XCVR 2.
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USB-KW24D512 USB-KW2x Hardware Reference Manual, Rev. 0.
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Chapter 4 PCB Manufacturing Specifications This chapter provides the specifications used to manufacture the KW2x Development hardware printed circuit board (PCB) described in this manual. The KW2x Development hardware PCBs must comply with the following: • The PCB must comply with Perfag1D/3C (http://www.perfag.dk/Uk/ukindex.
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PCB Manufacturing Specifications The following table defines some of the layers of the completed PCB. The artwork identification refers to the name of the layer in commonly used terms. Table 4-1. USB-KW24D512 Layer by Layer Overview Layer Artwork Identification File Name 1 Silkscreen Top SILK_TOP.art 2 Top Layer Metal TOP.art 3 Ground Layer GND.art 4 Power Layer PWR.art 5 Bottom Layer Metal BOTTOM.art 6 Silkscreen Bottom SILK_BOTTOM.art NOTE The USB-KW24D512 contains high frequency 2.
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PCB Manufacturing Specifications • • • 4.4 Laminate - The base laminate material (laminate) must be FR4. If the laminate material were changed the RF electrical characteristics may change and degrade RF performance. Copper Foil — Top and Bottom copper layers must be 1 oz. copper — Interior layers must be 1oz.
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PCB Manufacturing Specifications 4.9 File Description Files included with the download include Design, Gerber and PDF files. Gerber files are RS-274x format. Not all files included with the Gerber files are for PCB manufacturing. PDF files included are: • FAB-28057.pdf — USB - Board fabrication drawing • GRB-28057.zip — USB - Metal layers, solder mask, solder paste and silk screen • SPF-28057.pdf — USB - Schematic Design files are in Allegro format with OrCAD schematic capture.