CC2400DK User Manual
Contents
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3. e e e e 7 e e e e e e e e e e e 0 e 2 e EEE x e BEEN o e mmm eee ee e e e e eo e E e e e Figure 3 CC2420EM layout layer 2 X SWRUO45 Page 5 of 32 INSTRUMENTS Chipon Products from Texas Instruments Figure 4 CC2420 PCB layout layer 3 Figure 5 CC2420EM PCB layout layer 4 TEXAS SWRUO45 Page 6 of 32 INSTRUMENTS Products from Texas Instruments ET Chipcon 2420 1 0 AS C Chipcon VREG 2420 Figure 6a CC2420EM component placement top side P1 Figure 6b CC2420EM component placement bottom side 3 TEXAS INSTRUMENTS SWRUO045 Page 7 of 32 Products ipcon from Texas Instruments Ch Page 8 of 32 SWRUO045 5 87725 aanssr q33 3H3 d ON SA ON Wass 3215 emn zl
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5. Microcontroller and FPGA The CC2400EB has been built around a Cypress USB microcontroller and a Xilinx Spartan Il 200E FPGA This has been done to ensure maximum flexibility and is not representative for a low cost CC2420 application Both the microcontroller and the FPGA are RAM based devices and their configuration is loaded via the USB interface on power up The CC2400EB must therefore be connected to a PC to function properly Four LEDs and two buttons are included on the board for user interface purposes The LEDs are driven by the FPGA while the buttons are connected to both the FPGA and the microcontroller A reset button is provided which will reset both the microcontroller and the USB interface The LEDs are used to indicate status when the CC2400EB is used together with SmartRF Studio EXAS INSTRUMENTS SWRUO045 Page 13 of 32 Products from Texas Instruments Connectors The Evaluation Board is furnished with many connectors for easy access to various signals Test Port 1 P17 and Test Port 2 P5 are 2x10 pin pin row connectors that are connected to the FPGA and can be used to monitor various signals including all the CC2420 signals The pin out of these connectors is compatible with logic analyzer probes from Agilent The DTEST1 P6 and DTEST2 P7 SMA connectors are also connected to the FPGA and can be used to output or input signals from to the CC2420 respectively The ATEST1
6. Chipcon Products from Texas Instruments User Manual Rev 1 0 CC2420DK Development Kit i TEXAS SWRUO45 Page 1 of 32 INSTRUMENTS Chipon Products from Texas Instruments Table of contents INTRODUCTION uyu nerina ER EE SYN 3 CC2420 EVALUATION MODULE 02 48 4 CIRCUIT DESCRIPTION cccceesceescesscessceeeeceeeccsesceescaseceseceseceeeceaecaeceauseauecsneceanseausenesereseneeeneeses 4 PCB LAYOUT CC2420EM cccccccccessseeeecececesceeeeeeceeeeeaeeaseeseeeeeeeeaaeeeseeeeeeeeaeeeseceeeeeeanenseeees 4 SCHEMATIC 2420 8 BILL OF MATERIALS CC2420EM ccccccccccccceseceseceseeceeecececeeeceeecsascesuceauccsueceasecauecueseresereeennesaes 9 CC2400 EVALUATION 2 22222 11 10 POWER SUPPLY SECTION anl aaa e era Ee a ec Peta ee 10 SB INTERFACE oe s n tete da 12 58 232 INTERFACE nete t etn ea eda edd 12 JUMPERS Gu aS de abeat 12 MICROCONTROLLER AND enne nnne nn 13 CONNECTORS 2 14 PCBLAYOUT CG2400EB u u u ua aedes rd ee 15 SCHEMATICS CCG2400EB enr te a e dedere eda e Qua et reduci o eder Duda 18
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8. 2 R 47K 0603 R19 Do Not Mount DNM R20 Resistor 0603 47 2 47 0603 R21 Do Not Mount DNM R22 Resistor 0603 1 kQ 5 R 1 0 0605 J R23 Resistor 0805 270 5 R 270 0805 J R24 Resistor 0805 330 Q 596 R 330 0805 J R25 Resistor 0805 270 Q 5 R 270 0805 J R26 Resistor 0805 270 5 R 270 0805 J R27 Resistor 0603 1 kQ 5 R 1 0 0605 J R28 Resistor 0603 1 kQ 5 R 1 0 0605 J R29 Resistor 0603 00 0 0603 R30 Do Not Mount DNM SWRUO45 Page 26 of 32 EXAS INSTRUMENTS bipi Products from Texas Instruments Bill of materials CC2400EB Evaluation Board Reference Description Value Part R31 Resistor 0603 00 R 0 0603 R32 Do Not Mount DNM R33 Resistor 0603 47 2 R 47K 0603 G R34 Do Not Mount DNM R35 Do Not Mount DNM R36 Do Not Mount DNM R37 Do Not Mount DNM R38 Do Not Mount DNM R39 Do Not Mount DNM R40 Resistor 0603 47 kO 2 R_47K_0603_G R41 Resistor 0603 00 R 0 0603 R42 Resistor 0603 47 kO 2 R_47K_0603_G R43 Resistor 0603 47 kO 2 R_47K_0603_G R44 Resistor 0603 47 2 R_47K_0603_G R45 Resistor 0603 1 kQ 5 R 1 0 0605 J R46 Resistor 0603 10 2 R 10K 0603 G R47 Resistor 0603 00 R 0 0603 R100 Resistor 0603 00 0 0603 R101 Resistor 0603 00 0 0603 51 Push button SMD SKHUAF Alps 52 Push button SMD SKHUAF Alps S3 Push button SMD SKHUAF Alps TP1 Test point
9. Chipcon Products from Texas Instruments Jumpers Name Default setting Description VIO Between pins 6 and 8 Determines how the I O supply of the CC2420 is supplied with power If the jumper is connected between pins 8 and 6 the 1 8V supply is used If the jumper is connected between pins 8 and 10 the 3 3V supply is used If the jumper is connected between pins 8 and 7 the I O supply is driven by the external voltage present on the Extl pin on the power connector VC Between pins 3 and 5 Determines how the core supply of the CC2420 is supplied with power If the jumper is connected between pins 3 and 5 power is supplied by the 1 8V regulator If the jumper is connected between pins 3 and 1 the core supply is driven by the external voltage present on the ExtC pin on the power connector Between pins 4 and 6 Determines how power is supplied to the board If the jumper is connected between pins 4 and 6 the EB is powered from the power connected to the power connector or the power jack If the jumper is connected between pins 6 and 8 the EB is powered from the USB bus In this case the USB port the EB is connected to must be able to supply 500 mA current EEPROM En Present Determines if USB configuration information is loaded from EEPROM memory If removed the CC2400EB will report itself as a default USB device This jumper should always be present during normal operation
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12. BILL OF MATERIALS 2400 22 23 USING THE DEVELOPMENT nnn nnn un nnn nnn nana snae an 29 CC2420 RF EVALUATION USING SMARTRF STUDIO OR PACKET SNIFFER e 29 USING THE CC2420DK FOR 2 0000 30 TROUBLESHOOTING iiit xn rna ua x e nen sa NE NR inctuaewasnaistneuscusdvadnsdsnecnsasivunseucens 31 TDOES NOT WORK suceeded cute teme e 31 SMARTRF STUDIO DOES NOT RECOGNIZE THE CC2400EB 31 i TEXAS SWRUO45 Page 2 of 32 INSTRUMENTS Products from Texas Instruments Introduction The CC2420 is a true single chip 2 4 GHz IEEE 802 15 4 compliant RF transceiver designed for low power and low voltage wireless applications The CC2420DK development kit is a powerful and flexible tool specifically designed to make it easy for the user to evaluate the RF performance of the CC2420 and to minimize the time spent on evaluation The Development Kit includes two CC2400EB Evaluation Boards and two CC2420EM Evaluation Modules The Evaluation Modules contain the CC2420 chip and required external components The Evaluation Board serves as a motherboard for the Evaluation Modules The Evaluation Board provides a USB port a serial port buttons LEDs voltage regulator configuration jumpers and connectors to make it easy to interface the C
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14. Reset button Figure 7 CC2400EB Evaluation Board Power supply section The power supply section is configured by moving the jumpers located on the board There are three voltage regulators on the board one for use by the FPGA a 3 3 V regulator for general use and a 1 8 V regulator for powering the CC2420 The voltage regulator for the TEXAS SWRUO45 Page 10 of 32 INSTRUMENTS Products from Texas Instruments FPGA is turned on under software control when the USB controller has been properly configured A diode prevents permanent damage if wrong polarity is applied to the non regulated input There are two power connectors a 3 5mm DC jack type connector allows you to connect an unregulated battery eliminator easily the positive supply is on the center pin and two 5 pin terminal blocks can be used to connect either an unregulated or regulated power supply An amperemeter can also be connected in order to measure the DC current drawn by the CC2420 Since the CC2420 has two voltage supplies Core and I O there are separate current measurement loops for these two supplies If you are not going to measure the currents short circuit jumpers must be connected between the terminals otherwise the Evaluation Module will not be supplied with power IOC A IIC ExtC ov o Te A II Te Extl ov 47 2 2 2 P3 Figure 8 Power terminal block with ampere
15. Samtec TFM 110 02 S D A K TR P14 SMD pinrow header SMD HEADER 2x10 Samtec TFM 110 02 S D A K TR P15 USB B type connector USB B AMP 787780 1 P16 Low profile pin row CON6 FEMALE LP Preci DIP 801 connector 1x6 91 006 10 012 P17 Pin row connector PINROW 2X10 2x10 P18 Low profile pin row CON6 FEMALE LP Preci DIP 801 connector 1x6 91 006 10 012 SWRUO45 Page 25 of 32 EXAS INSTRUMENTS Chipcon Products from Texas Instruments Bill of materials CC2400EB Evaluation Board Reference Description Value Part P19 Do not mount DNM P20 Low profile pin row CON6 FEMALE LP Preci DIP 801 connector 1x6 91 006 10 012 Q1 PNP general purpose BC857B Philips Q2 NPN small signal BC846B Philips R1 Resistor 0603 10 kQ 296 R 10K 0603 G R2 Resistor 0603 22 Q 2 R 22 0603 G R3 Resistor 0603 22 Q 296 R 22 0603 G R4 Resistor 0603 1 5 kQ 296 R 1K5 0603 G R5 Resistor 0603 1 5 1 0 0603 J R6 Resistor 0603 47 2 R_47K_0603_G R7 Resistor 0603 47kQ 2 R 47K 0603 R8 Resistor 0603 00 R 0 0603 R9 Resistor 0603 00 0 0603 R10 Do Not Mount DNM R11 Do Not Mount DNM R12 Resistor 0603 47kQ 2 R_47K_0603_G R13 Resistor 0603 47kQ 2 R_47K_0603_G R14 Resistor 0603 00 0 0603 R15 Resistor 0603 47 kO 2 R_47K_0603_G R16 Resistor 0603 47 2 R_47K_0603_G R17 Do Not Mount DNM R18 Resistor 0603 4
16. interface SmartRF Studio uses the USB interface to control the CC2400EB The USB interface can be used both to configure the CC2420 and transfer data Chipcon provides a Windows driver that is installed as part of the SmartRF Studio installation process This driver must be present for SmartRF Studio to communicate with the CC2400EB Because USB is used the CC2420DK will only function with PCs running Windows 98 Windows ME Windows 2000 Windows XP or newer Windows NT and Windows 95 cannot be used since they do not support USB RS 232 interface A serial port is included on the CC2400EB This is intended for debugging purposes and cannot be used to connect the Evaluation Board to SmartRF Studio Jumpers The jumpers are used to configure the Evaluation Board The factory default settings are shown below This is the jumper setting when the CC2400EB voltage regulator is used to power the CC2420 CH Cs TP3 VIO 1 B 3 3 Ex o olb olo olo o VC Ex Reg V Ex 47058 Ma olo o o o J RIBNEEPROM En 5807_ Figure 9a CC2400EB voltage regulator selected on CC2420EM Default jumper settings 10 1 8 3 3 9 o VC Ex Reg V Ex t ZUSB Rie Rig EEPROM En Pt css Figure 9b CC2420 internal voltage regulator selected on CC2420EM X TEXAS SWRUO45 Page 12 of 32 INSTRUMENTS
17. 0 C102 Capacitor 0603 100 nF 10 C_100N_0603_X7R_K_50 C103 Capacitor low 470 UF C_470U_8 CVAX Sanyo CV AX impedance electrolytic 8x10 2 SWRUO45 Page 24 of 32 EXAS INSTRUMENTS bipi Products from Texas Instruments Bill of materials CC2400EB Evaluation Board Reference Description Value Part C104 Capacitor 0603 100 nF 10 C_100N_0603_X7R_K_50 C105 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C106 Capacitor 1206 2 2 10 C 202 1206 X7R K 10 D1 Schottky diode 2A 20BQ030 International Rectifier D2 LED green SMD LED_CL150GCD Citizen D3 LED red SMD LED_CL150URCD Citizen D4 LED yellow SMD LED_CL150YCD Citizen D5 LED blue SMD LED_EL15 21UBC Everlight H1 Circuit board support Distance 12 5mm H2 Circuit board support Distance 12 5mm H3 Circuit board support Distance 12 5mm H4 Circuit board support Distance 12 5mm P1 D SUB 9 pin female DSUB_9F P2 5 pin terminal screw SCREW_TERM_5 P3 5 pin terminal screw SCREW_TERM_5 P4 DC jack 2 5mm center DC_JACK_2 5 pin P5 Pin row connector PINROW 2 10 2x10 P6 SMA connector SMA Right angle P7 SMA connector SMA Right angle P8 SMA connector SMA Right angle P9 SMA connector SMA Right angle P10 Pin row connector 2x5 PINROW 2X5 P11 Pin row connector 2x5 PINROW 2X5 P12 Pin row connector 2x5 PINROW 2X5 P13 SMD pinrow header SMD HEADER 2x10
18. 2 9156815 Fax 49 7142 9156818 http www chipcon com wireless chipcon com support chipcon com 47 22 95 85 45 Chipcon Inc Eastern US Sales Office 35 Pinehurst Avenue Nashua New Hampshire 03062 USA Tel 1 603 888 1326 Fax 1 603 888 4239 Email eastUSsales chipcon com Email Germanysales chipcon com Sales Office Asia Chipcon Asia Pasific 37F Asem Tower 159 1 Samsung dong Kangnam ku Seoul 135 798 Korea Tel 82 2 6001 3888 Fax 82 2 6001 3711 Email Asiasales chipcon com X TEXAS SWRUO45 INSTRUMENTS Page 32 of 32
19. 23 Capacitor 0603 100 nF 10 100N 0603 X7R K 50 C24 Capacitor 0603 100 nF 10 100N 0603 X7R K 50 C25 Capacitor 0603 100 nF 10 100N 0603 X7R K 50 C26 Capacitor 0603 33 nF 1096 C 33N 0603 X7R K 25 C27 Capacitor 0603 33 nF 1096 C 33N 0603 X7R K 25 C28 Capacitor 0603 33 nF 1096 33N 0603 X7R 25 C29 Capacitor 0603 33 nF 1096 C 33N 0603 X7R K 25 C30 Capacitor 0603 33 nF 1096 33N 0603 X7R 25 C31 Capacitor 0603 33 nF 1096 33N 0603 X7R 25 C32 Capacitor 0603 33 nF 1096 33N 0603 X7R 25 C33 Capacitor 0603 33 nF 1096 C 33N 0603 X7R K 25 C34 Capacitor 0603 33 nF 1096 C 33N 0603 X7R K 25 C35 Capacitor 0603 33 nF 1096 C 33N 0603 X7R K 25 C36 Capacitor 0603 33 nF 1096 33N 0603 X7R 25 C37 Capacitor 0603 33 nF 1096 C 33N 0603 X7R K 25 C38 Capacitor tantal 47 C_47U_TAN_D C39 Capacitor 0603 33 nF 10 C 33N 0603 X7R K 25 C40 Capacitor 0603 33 nF 1096 33N 0603 X7R 25 C41 Capacitor 0603 33 nF 1096 C 33N 0603 X7R K 25 SWRUO45 Page 23 of 32 EXAS INSTRUMENTS Chipcon Products from Texas Instruments Bill of materials CC2400EB Evaluation Board Reference Description Value Part C42 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C43 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C44 Capacitor 0603 33 nF 10 C_33N_0603_X7R
20. C2420 with the SmartRF Studio software and various test equipment The CC2400EB Evaluation Board is the same as for the CC2400DK This User Manual describes how to use the Development Kit SmartRF Studio is documented in its own user manual Your SmartRF CC2420DK Development Kit should contain the following items Kit contents Item Number of articles Evaluation Board CC2400EB Evaluation Module CC2420EM Quick Start instructions Antenna 500 quarter wave monopole SMA male connector SMA to BNC adapters USB cable CC2420 sample kit N N N N X TEXAS SWRUO45 Page 3 of 32 INSTRUMENTS Products from Texas Instruments CC2420 Evaluation Module The CC2420EM Evaluation Module contains the CC2420 chip together with the external circuitry needed for proper operation Not all components are needed in an actual application Please see the data sheet for a typical application circuit The CC2420 operates in the 2 4 GHz frequency band Although this frequency band is usually described as world wide some countries do not allow unlicensed operation in this band Important Contact your local telecommunication authorities before transmitting an RF signal Circuit description The CC2420 RF section includes all the necessary components for correct operation The CC2420 is connected to a 16 MHz crystal The user can select between using the CC2420 on chip voltage regulator or the regulat
21. P9 and ATEST2 P8 provide access to analog test signals from the CC2420 The selection of what signals are available at the different connectors is done in SmartRF Studio X TEXAS SWRUO45 Page 14 of 32 INSTRUMENTS hipon Products from Texas Instruments PCB layout CC2400EB The Evaluation Board is a 4 layer 1 6 mm thick FR 4 PCB Four layers are used because of the routing requirements Layers 1 and 4 are used for signal routing layer 2 is a ground plane and layer 3 is used for power routing The majority of the components are mounted on the top side of the PCB while a few decoupling capacitors were put on the bottom side O oo oo O S oo oo o o a ME oo 0200000000 0000000000 PC 4 or coo mou 2 2 20 I 88 S 2 5 9 20 99 2 p 1 m 99 9o a 42 D o O 30000 88 O Sooo O Q SSE Figure 10 2400 layout layer 1 top left layer 2 top right layer 3 bottom left and layer 4 bottom right X TEXAS SWRUO45 Page 15 of 32 INSTRUMENTS Products ipcon from Texas Instruments Ch LL Z 449d 801 EN3 zis3ia 11531 d 21631 Sd T T O mj
22. TESTPIN TP2 Test point TESTPIN TP3 Test point TESTPIN TP4 Test point TESTPIN TP5 Test point TESTPIN TP6 Test point TESTPIN TP7 Test point TESTPIN TP8 Test point TESTPIN U1 EZ USB MCU CY7C64613 128NC Cypress U2 Spartan IIE FPGA XC2S200E 6FT256l Xilinx U3 Do Not Mount DNM U4 3 3 V low drop out LP2981AIM5 3 3 National regulator Semiconductor X TEXAS SWRUO45 Page 27 of 32 INSTRUMENTS bipi Products from Texas Instruments Bill of materials CC2400EB Evaluation Board Reference Description Value Part U5 32 kB SRAM IDT71V256SA20YI IDT U6 1 8 V low drop out XC6204B182MR Torex regulator U7 1 8 V low drop out LP3961ES 1 8 National regulator 800 mA Semiconductor U8 16 byte 122 EEPROM 24LCOOI SN Microchip U9 Do Not Mount DNM U10 Do Not Mount DNM U11 Quad NAND gate 74HCOOD Philips U100 RS 232 Transceiver MAX3243EEWI Maxim 3 5V X1 12 MHz crystal HC X 12 000 50 50 10 12 49SMD 50 50 ppm 12 pF i SWRUO45 Page 28 of 32 EXAS INSTRUMENTS Products from Texas Instruments Using the Development Kit The CC2420DK Development Kit is useful for providing hands on experience with the CC2420 for both software and hardware developers The plug in Evaluation Module provides flexibility it can operate both in a stand alone fashion and together with the Evaluation Board Using the Evaluation Board it is easy to interface the CC2420 with both t
23. Vd Pays v2d ZJd s menus 085 085 7 Jang 712738017344 eem NN ey EU d 2 t snaa 85n 32 vH 8785 Sid 78137 SZ X W X EQB NEE 2 SZ X HX EBBE NEE 2 82 HX 2098 NEECJ i 62 m L L L L k i i SZ X WX ERU SZ 3 H XCEWSW NEED S273 B X E290 NcE 2 872 471 822 HORE GA Ajddns samog OI W3 sugori38auuo 371 SZ X B X EBg NEE 1 SZ HX EDS NEE 3 S2 X E090 NEEJ LEJ 8 2 Seq CNV ge I Lh Lh L g I 927 03 V9d4 JIA X B X EQBO NEE 2 92 H X EBS NEE 2 SZ X H X 2098 NEE 2 84002 Page 18 of 32 SWRUO045 INSTRUMENTS 9 5 G Z asus aws qanssi g EV qax33u3 masa asn gag0rz33 SM 3i1vd ST1vAOBddV SV NOJOdIHJ vcsca 3AVN ANVdNOO ON L2VHINOO Page 19 of 32 SWRUO045 Products ipcon from Tex
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25. _K_25 C45 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C46 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C47 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C48 Capacitor tantal 47 C_47U_TAN_D C49 Capacitor tantal 47 C_47U_TAN_D C50 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C51 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C52 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C53 Capacitor tantal 47 C_47U_TAN_D C54 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C55 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C56 Capacitor 0603 33 nF 10 C 33N 0603 X7R K 25 C57 Capacitor tantal 47 C 47U TAN D C58 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C59 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C60 Capacitor 0603 33 nF 1096 C 33N 0603 X7R K 25 C61 Capacitor tantal 47 C_47U_TAN_D C62 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C63 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C64 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C65 Capacitor tantal 47 C_47U_TAN_D C66 Capacitor tantal low 100 C_100U_TAN_D_KEMET Kemet ESR T494D107M010AS C67 Capacitor tantal 47 C_47U_TAN_D C68 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C69 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C70 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C71 Capacitor 0603 33 nF 10 C_33N_0603_X7R_K_25 C100 Capacitor 0603 100 nF 10 C_100N_0603_X7R_K_50 C101 Capacitor 0603 100 nF 10 C_100N_0603_X7R_K_5
26. as Instruments Ch E DII g 81127434 N ALUM SIJNOJ3 w 112 93d id3B N 5 5 3NQ T 115 S3d WNaSd 1 NCRVESOHg SI 3NTJ AAWALNOG v 3d a tad rx za p a 23 Ls 51 ae sq 1 33 sa NOL1nB 7HShd MN T 1 d3d E3d af SV1SLN08 audv aad bole eg z ES a NOLL1DnB HShd i raus dad n eS k Iz 8 5819 579 8 89 19 a za i 3 v H IEBSA ALITH 1JB ZBd9 Z d 8 Eby 28 Wl 8i 4870809 004 TIR EOE ALITH Bad Lid 43d 12 824 E 112 11782d Bv z D L SJd ZJd 1 N um i H 5 1 EAGH EILNI E2d u AE Eae N BIN SBINI ZJd Sv SL efi 1 138 c E z zv EBST 12976 ZT 7 1 02 17288 iv 4 J m Saano S Si Jv 8vd9 91 91NI 88d av E STINO g SlaV SV05 S0 S1NI7S8d 94 WINI cg eldV e VI9 v lNI Bd ttL3S3H Tr ET SINO ze z _ 207913005 ig 14 2 AISIT 8 4
27. est equipment and additional application circuitry without having to make a PCB from scratch Below we will highlight the most useful setups CC2420 RF Evaluation using SmartRF Studio or Packet Sniffer Spectrum analyzer RF Signal generator CC2420EM 2400 PC running SmartRF Studio Evaulation Board or Packet Sniffer Oscilloscope Function generator Figure 13 RF Evaluation using SmartRF Studio Using the setup shown in Figure 13 the RF performance of the CC2420 can be evaluated Use the supplied cable to connect the USB port of the CC2400EB to the USB port of a PC running SmartRF Studio You can then use SmartRF Studio to control all the RF parameters of the CC2420 SmartRF Studio can be used to perform a wide variety of RF tests including link tests Using two CC2400EBs it is possible to send data from one PC to another Please refer to the SmartRF Studio documentation for more information When the CC2400EB board is connected to a PC the PC will load the USB driver for the board SmartRF Studio must be installed on the PC Once the driver has loaded it will update the FPGA and microcontroller and the LEDs will start flashing The LED flashing will stop if one of the buttons on the board is pressed or when SmartRF Studio or the Packet Sniffer is
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29. i re MC 2472 0J3737X gt 2 I ip Ixi id Bid 1 uigsu H 2090 U Bia iere 3 470 aru A E XE EC 2 Tas Cc INSTRUMENTS 35 TEXAS Chipcon Products from Texas Instruments Bill of Materials CC2400EB Bill of materials CC2400EB Evaluation Board Reference Description Value Part C1 Capacitor 1206 2 2 uF 10 C 202 1206 X7R K 10 C2 Capacitor 0603 27 pF 596 C 27P 0603 NPO J 50 C3 Capacitor 0603 27 pF 596 C 27P 0603 NPO J 50 C4 Capacitor tantal 3 3 UF C 3U3 TAN B C5 Capacitor 1206 2 2 uF 10 C 202 1206 X7R K 10 C6 Capacitor 0603 33 nF 1096 C 33N 0603 X7R K 25 C14 Capacitor 0603 100 nF 10 100N 0603 X7R K 50 C15 Capacitor tantal 3 3 uF C 3U3 TAN B C16 Capacitor 0603 100 nF 10 100N 0603 X7R K 50 C17 Capacitor 0603 100 nF 10 100N 0603 X7R K 50 C18 Capacitor 0603 100 nF 10 100N 0603 X7R K 50 C19 Capacitor 0603 100 nF 10 100N 0603 X7R K 50 C20 Capacitor 0603 100 nF 10 100N 0603 X7R K 50 C21 Capacitor 0603 100 nF 10 100N 0603 X7R K 50 C22 Capacitor 0603 100 nF 10 100N 0603 X7R K 50 C
30. ion The FPGA and microcontroller are RAM based and firmware must be loaded from a PC when power is applied to the board e USB driver is loaded correctly you should see the LEDs on the CC2400EB flash The LEDs will stop flashing when one of the buttons on the CC2400EB is pressed or when SmartRF Studio is started SmartRF Studio does not recognize the CC2400EB e Make sure that you have installed SmartRF Studio using the installation program e sure that the USB port on your computer is installed correctly try another USB device with the same port Also note that USB only works correctly with Windows 98 ME 2000 XP or newer Please note that SmartRF Studio can only communicate with the CC2400EB via the USB port The serial port cannot be used to communicate with the CC2400EB Description Changes X TEXAS SWRUO45 Page 31 of 32 INSTRUMENTS Chipcon Products from Texas Instruments Address Information Web site E mail Technical Support Email Technical Support Hotline Headquarters Chipcon AS Gaustadall en 21 NO 0349 Oslo NORWAY Tel 47 22 95 85 44 Fax 47 22 95 85 46 E mail wireless chipcon com US Offices Chipcon Inc Western US Sales Office 19925 Stevens Creek Blvd Cupertino CA 95014 2358 USA Tel 1 408 973 7845 Fax 1 408 973 7257 Email USsales chipcon com Sales Office Germany Chipcon AS Riedberghof 3 D 74379 Ingersheim GERMANY Tel 49 714
31. meters attached Table 1 Power connector connections Connector and pin Marking Description P3 pin 1 4 7V Unregulated voltage in Input to voltage regulators Equivalent with the DC jack input P3 pin 2 OV Circuit ground P3 pin 3 Extl External I O voltage An externally applied voltage will drive the I O supply of the CC2420 and the associated FPGA pins if the jumpers are set correctly P3 pin 4 Hl supply current input Insert an amperemeter between this pin and the IOI pin to measure the current drawn by the I O supply of the CC2420 P3 pin 5 IOI supply current output Insert an amperemeter between this pin and the III pin to measure the current drawn by the I O supply of the CC2420 P2 pin 1 OV Circuit ground P2 2 OV Circuit ground P2 3 Ext External core voltage An externally applied voltage that will drive the core supply of the CC2420 if the jumpers are set correctly P2 pin 4 Core voltage current input Insert an amperemeter between this pin and the IOC pin to measure the current drawn by the core supply of the CC2420 P2 pin 5 IOC Core voltage current output Insert an amperemeter between this pin and the IIC pin to measure the current ub TEXAS SWRUO45 Page 11 of 32 INSTRUMENTS open Products from Texas Instruments drawn by the core supply of the CC2420 USB interface The CC2400EB connects to a PC via a USB
32. or on the CC2400EB This is controlled by the jumper on CC2420EM The default setting is to use the CC2400EB regulator If the internal regulator is selected you must also change the CC2400EB P12 jumper setting as given in figure 9 The CC2420EM Evaluation Module can be plugged into the CC2400B Evaluation Board Two 2x10 pin pin row connectors with 0 050 inch pitch are used for this purpose Figure 1 CC2420EM Evaluation Module PCB layout CC2420EM RF circuits operating at high frequencies are sensitive to the physical layout of the PCB Chipcon has carefully optimized the layout of the CC2420EM Evaluation Module and we therefore recommend that the user copies it when making own PCB designs The PCB is of a 4 layer type in order to provide a well defined ground plane as well as adequate routing space The laminate used is standard FR 4 board material The PCB is 1 0mm thick with layer 1 on the top side layers 2 and 3 are internal layers and layer 4 is on the bottom side Layers 1 and 4 are used for routing and layer 3 is used for power routing All areas not utilized for routing are filled with copper connected to ground to provide RF shielding The ground planes on all layers are stitched together with closely spaced vias TEXAS SWRUO45 Page 4 of 32 INSTRUMENTS eMip Products from Texas Instruments Figure 2 CC2420EM PCB layout layer 1 e e e e e e e e
33. started When SmartRF Studio is running the LEDs are used to indicate the ID for the board The ID is shown as a binary number with the red LED representing the least significant bit LSB the yellow LED representing bit 1 and the green LED representing the most significant bit MSB When the Packet Sniffer is running the LEDs will blink when packets are received Important The use of radio transceivers is regulated by international and national rules Before transmitting an RF signal on an antenna please contact your local telecommunication authorities to make sure that you are licensed to operate the transceiver X TEXAS SWRUO45 Page 29 of 32 INSTRUMENTS Products from Texas Instruments Using the CC2420DK for prototyping The CC2420EM module contains the CC2420 and all external components required All CC2420 signals are available at the SMD connectors on the bottom side of the module The modules can be easily plugged into a prototype PCB containing the rest of the system The SMD connectors used on the CC2420EM are manufactured by Samtec http www samtec com please refer to the CC2400EB bill of materials for the part number of the connector that will interface with the connectors on the CC2420EM It is also possible to do prototyping by connecting any microcontroller development kit to the CC2400EB through Test Port 1 The FPGA must then be programmed using the SmartRF Studio Load FPGA Configuration f
34. tor 0402 5 6 nH 596 L 5N6 0402 J L81 Inductor 0402 7 5 nH 596 L 7N5 0402 J P1 SMD pinrow socket SMD SOCKET 2x10 Samtec SFM 110 02 S D A K TR P2 SMD pinrow socket SMD SOCKET 2x10 Samtec SFM 110 02 S D A K TR P3 3 pin jumper 3 pin connector 0 9 mm pin P4 Surface mount SMA SMD SMA straight R1 Resistor 0603 00 R 0 0603 R2 Resistor 0603 00 R 0 0603 R421 Resistor 0402 20 1 R2RO 0402 F R451 Resistor 0402 43 1 R 43K 0402 F U1 Single chip CC2420 transceiver X1 Crystal ceramic X 16 000 10 10 10 16 Toyocom SMD 4x25mm TSX 10A 16M 16pF i SWRU045 Page 9 of 32 EXAS INSTRUMENTS Products from Texas Instruments Note The crystal X1 mounted on the EM board is a 16 000 MHz crystal with 10 ppm initial tolerance 10 ppm drift over temperature and a temperature range of 10 C to 60 C The crystal is designed for 16 pF load capacitance In an actual application the tolerance drift and temperature range of the crystal must be considered with application requirements in mind Please consult the data sheet and SmartRF Studio for more information It is possible to choose a larger crystal package to save cost The crystal should have an ESR of 60 O or less CC2400 Evaluation Board The Evaluation Board is used as a motherboard for the Evaluation Modules and provides power and external connections Jumpers Sockets for EM Power connections SMA connectors Serial port Eu Test port USB port va
35. u S Su sad 1 1 age aur S EWS JAYATI Tiana C Schematic CC2420EM CC2420EM schemat Figure 7 INSTRUMENTS 9 5 Products from Texas Instruments Bill of materials CC2420EM Bill of materials CC2420EM Reference Description Value Part C1 Capacitor 0603 2 2 UF 10 C_2U2_0603_X5R_K_10 C11 Capacitor 0402 100 nF 10 C 100N 0402 X5R J 10 C61 Capacitor 0402 0 5 pF 0 25 pF C 0 5 0402 NPO C 50 C62 Capacitor 0402 5 6 pF 0 25 pF C 5P6 0402 NPO C 50 C71 Capacitor 0402 5 6 pF 0 25 pF C 5P6 0402 NPO C 50 C81 Capacitor 0402 0 5 pF 0 25 pF C 0 5 0402 NPO C 50 C101 Capacitor 0402 10 nF 1095 10N 0402 X7R 25 C171 Capacitor 0402 68 pF 5 C 68P 0402 NPO J 50 C251 Capacitor 0402 100 nF 10 C 100N 0402 X5R K 10 C261 Capacitor 0402 100 nF 10 C 100N 0402 X5R K 10 C351 Capacitor 0402 100 nF 1096 C 100N 0402 X5R K 10 C371 Capacitor 0402 68 pF 5 C 68P 0402 NPO J 50 C381 Capacitor 0402 22 pF 596 C 22P 0402 NPO J 50 C391 Capacitor 0402 22 pF 596 C 22P 0402 NPO J 50 C421 Capasitor 0805 10 uF 15 C_10U_0805_X5R_L_25 C431 Capasitor 0805 10 uF 15 C 10U 0805 X5R L 25 C441 Capacitor 0402 68 pF 5 C 68P 0402 NPO J 50 L61 Inductor 0402 7 5 nH 596 L 7N5 0402 J L62 Induc
36. unction at startup The cc2420 uc prototyping 1 O bin FPGA file is downloadable from the Chipcon website All leds will be turned off after programming this FPGA The FPGA will give access to all CC2420 digital pins on Test Port 1 as shown below Test Port 1 Pin Number Test Port 1 to from uC 1 N C 2 N C 3 N C 4 FIFOP to uC 5 HighZ 6 HighZ 7 HighZ 8 SFD to uC 9 HighZ 10 HighZ 11 HighZ 12 CSn from uC 13 SCLK from uC 14 SI from uC 15 SO to uC 16 CCA to uC 17 FIFO to uC 18 RESETn from uC 19 VREG_EN from uC 20 GND Test Port 2 contains the same pins except these are all outputs from the FPGA Test Port 2 may be connected to a Logic Analyzer for software debugging purposes X TEXAS SWRUO45 Page 30 of 32 INSTRUMENTS Chipe Products from Texas Instruments Troubleshooting It does not work e Make sure that either a jumper or an amperemeter is connected between the IOI and II terminals and the IIC and IOC terminals on the power connector e Make sure that the power supply is connected to the correct pins on the power connector e Make sure that a jumper is connected on CC2420EM e 5 the supply voltage correctly polarized If not the protection diode will prevent any current from flowing and are indicated on the PCB On the DC jack the tip is and the ring is e Please note that CC2400EB must be connected to a PC for proper operat
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