AN RFMD® APPLICATION NOTE RF6201EM357 Reference Design Product Description The RF6201EM357 reference design is a partnership between RFMD and Ember presenting a complete 2.4GHz IEEE 802.15.4-2003-compliant radio transceiver solution. Ember presents a fully integrated system-on-chip (SoC) with 32-bit ARM® CortexTM-M3 microprocessor, flash memory, and RAM memory, delivering unmatched performance and EmberZNet PRO network protocol stack to designers of ZigBee-based systems. RFMD presents a world class front end module (FEM) for efficient extended output power at 23dBm with harmonic filtering, diversity switch, and LNA option for "bypass mode". This document briefly describes the RF6201EM357 reference design and how it is set up and configured for Engineering Evaluation of the RFFM6201 FEM using Ember's nodetest application firmware, pre-flashed on the EM357 SoC. Snapshots of Tx and Rx data are included. Figure 1. Top and Bottom view of RF6201EM357 Reference Design Top View Bottom View RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trademark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2012, RF Micro Devices, Inc. AN120613 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 1 of 9 RF6201EM357 Reference Design Figure 2. Layout Figure 3. Schematic Complete reference design files, including layout, schematic, BOM, and Gerber files are available from RFMD.com. 2 Q3 1 PB7 SOT23 PA1 PA2 0_REF VBRD VBRD PA3 NWP 8 PA1 7 6 VBRD 5 R19 100ohm PKG_8L_SOP GND C7 VBRD R5 DNI JCLK PC3 PC2 10 8 6 4 2 PA5 PA4 NRESET JCLK PC4 GND PC3 PC0 PC2 VBRD 9 7 PA4 2.2uF GND VDDA_1V8 GND 1uF PC7 PC4 1 PC0 PC6 R13 0 ohm 5 3 C8 V_FILTER 1 ohm 100nF GND PA5 NRESET R2 GND VDD_CORE_1V2 C6 2 PA0 1 4 748 893 0245 AT3 2 GND R12 0 ohm C19 GND DNI VBRD J1 Y2 ABS07-32.768KHz-T(DNI) C5 VBRD 1 GND 100nF L22 1.8nH 2 C9 PB0 C10 22pFGND R4 DNI PB0 GND 33pF PC6 C52 R6 DNI PC1 PA1 PA0 PB4 PB3 PA7 P10 P11 GND RF_P 2 VDDA_1V8 1 DS2 YELLOW DS1 RED OSCA GND GND C12 OSCA 27pFGND OSCB 20 ANTSEL 24 23 22 21 N/C C_LNA C_Rx_Tx VCCLNA GND ANT2 CT RFn RFP GND GND GND GND ANT1 GND GND GND 16 15 14 13 GND OSCB 1 OSCB 24 MHz OSCA NC 3 ANT1 J13 MM8130-2600 3 GND 6 4 5 GND GND C17 GND C53 GND DNI OSCA L21 1.8nH 2 C21 27pF GND C13 R8 510 ohm GND GND 1uF Y1 NC 3 GND GND VBRD (0402) 4 4 6 ANT2 C14 10nF VDDA_1V8 C11 GND GND GND 3 7 N/C RF_N 4 6 GND 8 4 GND 5 L10 3.0nH GND VCC_PA GND C15 8.0 pF GND GND RF_TX_ALT_P 5 CE VCC_DIG RF_TX_ALT_N 6 3 GND 9 7 PB0 1 2 U5 RF6201 19 GND 18 GND 17 12 8 GND J12 MM8130-2600 GND 5 10 C18 8.0 pF VDDA_1V8 VBRD C3 100nF DNI PC5 GND 10 9 R15 0 ohm VDDA_1V8 C20 10nF 48 OSCB GND GND 8.0 pF 2 VDD_VCO VDD_24MHZ 47 VDD_SYNTH VDD_PRE 46 PB0 45 PC4 VDD_CORE_1 RF_P PB5 PC3 PB6 RF_N PB7 PC2 R16 C27 PC5 VBRD 11 VDD_RF VDDA_1V8 C16 10nF NRESET 11 DNI RF_TX_ALT_P JTCK VDDA_1V8 12 L9 15 16 14 17 19 13 PC6 PC7 VREG_OUT VDD_PADS_0 VDD_CORE_0 20 18 PB3 PB4 PA7 22 21 PA0 PA1 VDD_PADS_1 RF_TX_ALT_N PB2 44 36 PB1 43 35 VDD_IF 42 PB0 34 PA6 41 PB5 GND PB6 PB7 PC0 PC1 PB0 PC4 PC3 PC2 JCLK 33 NC PC0 PC4 VBRD GND 32 VDD_PADSA 37 33 32 31 30 29 28 27 26 25 24 23 22 21 20 31 PC5 VDD_PADS_2 VDD_MEM PC3 30 U1 NRESET PA5 PC1 PC2 29 PA4 GND DNI R9 0 ohm R10 DNI GND DNI 8.0 pF GND VDDA_1V8 1 748 893 0245 AT4 GND PA4 PA5 PA6 PB1 PB2 PB2 JCLK LINK GND PB1 GND ACTIVITY PC5 PC6 PC7 PA7 PB3 NRESET PB4 PA0 PA1 PA2 PA3 GND PA6 PA3 VDD_PADS_3 C4 100nF P10 P11 EM35X_RCM_INTERFACE 27 28 VBRD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 26 40 PA5 25 39 PA4 38 PA3 PA2 24 23 PA2 2 1 3 PA3 1 PA2 C37 10nF 1 PA0 VBRD 3 GND U3 PC1 PA7 C1 VG1 2 R7 510 ohm 10nFGND VDD_CORE_1V2 PA6 PB6 VDD_MEM 10 ohm PB7 QFN-48_VIA_GRID A via grid array of nine vias spaced 1.6256mm apart is required to be placed centered under the Ember QFN-48 IC package to provide adequate gounding and thermal continuity R3 100ohm C2 0.47uF GND EM357 -GPIO PBO PC5 Jumper to either PBO or GND PC1 Jumper to either PC6 or GND RF6201-CTRL-Pin# CE- pin2 C_RX_TX- pin24 LNA_EN- pin23 C_ANT1- pin21 C_ANT2- pin20 GND 1 2 3 4 5 6 7 8 9 VDDA_1V8 PC0 R1 PB5 GND VG2 QFN-24_VIA_GRID A via grid array of twenty five vias spaced 0.635mm apart is required to be placed centered under the RFMD QFN-24 IC package to provide adequate gounding and thermal continuity AN120613 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 2 of 9 RF6201EM357 Reference Design Figure 4. Application Schematic for Minimum Components 2 Q3 1 PB7 SOT23 PA2 1 U3 PA0 2 3 VBRD C37 10nF PA3 4 PA1 PA2 0_REF VBRD VBRD PA3 NWP 8 3 GND PA0 PA1 7 6 VBRD 5 R19 100ohm PKG_8L_SOP GND C7 VBRD R5 DNI NRESET JCLK PC3 PC2 10 PA5 8 NRESET 6 JCLK 4 2 PA4 PC4 GND PC3 PC0 PC2 VBRD 9 7 VDD_CORE_1V2 C6 PA4 2.2uF GND VDDA_1V8 GND 1uF PC7 PC4 1 PC0 PC6 R13 0 ohm 5 3 C8 V_FILTER 1 ohm 100nF GND PA5 R2 GND GND VBRD J1 R12 0 ohm Y2 ABS07-32.768KHz-T(DNI) C5 VBRD 1 GND 100nF 2 C9 C10 22pFGND GND 33pF PA1 PA0 PB4 PB3 PA7 GND 7 2 RFn RFP GND LINK ACTIVITY OSCA 2 1 20 ANTSEL 24 21 ANT1 GND GND GND GND 16 15 14 13 GND ANT2 ANT1 GND GND GND C17 GND 1uF VBRD (0402) Y1 4 NC OSCB 1 OSCB 24 MHz OSCA NC 3 OSCA 2 27pF GND C13 R8 510 ohm 8.0 pF GND VDDA_1V8 PC1 PA7 C1 R7 510 ohm 10nFGND VDD_CORE_1V2 PA6 PB6 VDDA_1V8 PC0 R1 VDD_MEM 10 ohm PB5 PB7 R3 100ohm C2 0.47uF GND AN120613 OSCA 27pFGND OSCB GND C14 10nF VDDA_1V8 C11 C12 GND 22 GND GND GND C3 100nF DS1 RED N/C ANT2 CT VDDA_1V8 1 C_LNA C_Rx_Tx GND U5 RF6201 19 GND 18 GND 17 1 L10 3.0nH GND 748 893 0245 AT4 RF_P 6 GND 2 3 5 CE 8 RF_N 4 GND GND GND 5 4 GND 3 12 GND C15 8.0 pF 2 N/C RF_TX_ALT_P PB0 VCC_PA RF_TX_ALT_N 6 DNI 7 GND GND VDDA_1V8 8 1 VCC_DIG 9 C18 8.0 pF VCCLNA VDDA_1V8 23 PC1 PC5 8.0 pF GND 9 PC5 10 11 11 GND VBRD DS2 YELLOW 748 893 0245 AT3 C27 C20 10nF 48 OSCB VDD_24MHZ 47 46 PB0 VDD_SYNTH VDD_VCO VDD_PRE RF_P PC4 VBRD PB0 VDDA_1V8 C16 10nF NRESET 10 RF_N PC3 VDDA_1V8 12 L9 13 PC6 16 15 17 19 14 PC7 VREG_OUT VDD_PADS_0 VDD_CORE_0 20 18 PB3 PB4 PA7 22 21 PA0 PA1 VDD_PADS_1 PC2 45 36 VDD_RF VDD_CORE_1 35 JTCK 37 PB0 34 RF_TX_ALT_P PB5 PC4 33 RF_TX_ALT_N PB2 PB6 PC3 32 PB1 PB7 PC2 31 VDD_IF 44 JCLK 30 NC PA6 43 PB2 VDD_PADS_2 42 PB1 GND 29 PC0 PA6 PC5 VDD_PADSA 41 C4 100nF U1 NRESET PA5 40 28 VBRD PA4 VDD_MEM 27 PC1 26 VDD_PADS_3 PA5 PA3 39 PA4 25 38 PA3 PA2 24 23 PA2 GND 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 3 of 9 RF6201EM357 Reference Design BOM for Minimum Components Description Reference Designator Manufacturer Manufacturer's P/N 2 CAP, 1F, 10%, 6.3V, X5R, 0402 C6, C17 Murata Electronics GRM155R60J105KE19D 1 CAP, 0.47F, 10%, 10V, X5R, 0402 C2 Murata Electronics GRM155R61A474KE15B 4 CAP, 0.1F, 10%, 16V, X7R, 0402 C3,C4,C5,C7 Murata Electronics GRM155R71C104KA88D 1 CAP, 2.2F, 10%, 10V, X5R, 0603 C8 Murata Electronics GRM188R61A225KE34D 5 CAP, 10000pF, 10%, 25V, X7R, 0402 C16, C20, C14, C1, C37 Murata Electronics GRM155R71E103KA01D 2 CAP, 7pF, +/- 0.1pF, 50V, C0G, 0402 C11,C12 Murata Electronics North America GRM1555C1H7ROBZ01D 4 CAP, 8pF, +/-0.1pF, 50V, C0G, 0402 C13,C15,C18,C27 Murata Electronics GRM1555C1H8R0BZ01D 1 CAP, 22pF, 5%, 50V, COG, 0402 C9 Murata Electronics GRM1555C1H220JZ01E 1 CAP, 33pF, 5%, 50V, CG, 0402 C10 Tiayo Yuden (USA), Inc. RM UMK105CG330JV-F 1 IND, 3.0nH, +/-0.1nH, T/F, 0402 L10 Murata Electronics LQP15MN3N0B02D 1 RES, 10 OHM, 5%, 1/16W, 0402 R1 Kamaya, Inc RMC1/16S-100JTH 2 RES, 100 OHM, 5%, 1/16W, 0402 R3, R19 Kamaya, Inc RMC1/16S-101JTH 1 RES, 1 OHM, 5%, 1/16W, 0402 R2, Kamaya, Inc RMC1/16S-1R0JTH 2 RES, 510 OHM, 5%, 1/16W, 0402 R7,R8 PANASONIC INDUSTRIAL CO ERJ-2GEJ511 1 CONN, HDR, 2x5, 0.050", SMD J1 SAMTEC INC. FTSH-105-01-L-DV 1 TRSTR, MOSFET, N-CH, 30V, 1.6A, SOT23 Q3 Fairchild Semiconductor NDS355N 1 XTAL, 24.0MHz, +/-10PPM, 9pF, 3225, SMD Y1 Epson Electronics America Inc. TSX-3225 24.0000MF15X-AC3 1 IC, ZigBee XCVR, SoC, 2.1-3.6V, QFN-48 U1 Ember Corporation EM357-RTR 1 ZIGBEE FEM U5 RFMD RFFM6201 1 IC,Dataflash, 2MBIT, 8-EIAJSOIC U3 ATMEL MICRON AT45DB021D-SSH-B 1 LED, RED, 2V, 20mA, 0402 DS1 Rohm Electronics SML-P12UTT86 1 LED, YEL, 2.1V, 20mA, 0402 DS2 Rohm Electronics SML-P12YTT86 2 Antenna, Ceramic Chip Dielectric, 3.2X1.6X0.5MM, 2.45GHz AT3, AT4 Johanson Technology 2450AT18B100E 0 NOT POPULATED ITEMS PCBA BOM C19,C21, C52, C53*, L9*,R5*, R4*,R6*, R10, R15* Quantity AN120613 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. DUMMY PART 4 of 9 RF6201EM357 Reference Design Test Setup Figure 5. Test Setup Evaluation and Configuration The RF6201EM357 reference design is evaluated on the Ember EM35X breakout board (EM35X-BBRD) using an RS-232 interface or USB interface with onboard RS-232 conversion. Power is provided using a USB supply, external supply, or external battery pack. Figure 6. RF6201EM357 Reference Design Using USB Interface and Power AN120613 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 5 of 9 RF6201EM357 Reference Design With the RF6201EM357 reference design powered and connected to a computer, a terminal emulator can establish communication with the appropriate RS-232 COM Port or USB interface, depending on which type of connection is in use. If you do not have the proper FTDI drivers installed, please go to www.ftdichip.com/FTDrivers.htm and install the drivers for your operating system. These drivers are needed to establish communication. Note that these drivers may have to be installed twice to ensure proper operation. After connection is established with that port, set field values as follows: After choosing the appropriate COM port the bits per second field should be 115,200; the data bits field should be 8; the parity field should be none and the stop bits should be 1 with flow control set to Hardware. Pressing "Enter" will then establish a response from the EM357 SoC and configuration of the RFFM6201 FEM can now occur. Figure 7. RF6201EM357 Reference Design Response from Hyperterminal RFFM6201 Configuration with EM357 Using Node Test Application v1.0 At the prompt ">", the following commands are utilized to configure the RFFM6201 FEM for continuous transmit in channel 19 (as an example scenario) in the following order: Step Description Command Note 1 Configure GPIO "PC5" and "PC6" for RFMD FEM gpiocfg c 19944919 "Enter" Default Antenna 1 2.445GHz 2 Set Transmit Channel to 19 setchannel 13 "Enter" 3 Configure EM357 extended mode settxpowmode 0 1 "Enter" 4 Set EM357 Pout to 1dBm settxpower 1 "Enter" 5 Transmit continuous carrier frequency txtone "Enter" 6 Exit continuous transmi e Steps 5 and 6 can be replaced with the following for a continuous stream of random symbols: 5 Transmit continuous stream of random symbols txStream "Enter" 6 Exit continuous transmit e Steps 5 and 6 can also be replaced with the following for Receive mode: 5 Receive Mode rx "Enter" 6 Exit continuous receive e AN120613 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 6 of 9 RF6201EM357 Reference Design Additional Commands Transmit through Antenna Select Antenna 1 gpioout c E5 "Enter" Select Antenna 2 gpioout c E7 "Enter" Configure and Toggle LEDs Step Description 1 Command Configure GPIO "PB5" and "PB6" for LEDs gpiocfg b 91194491 "Enter" Turn "PB6" LED on ("PB7" LED off) gpioout a A1 "Enter" Turn "PB6" LED on ("PB7" LED on) gpioout a 21 "Enter" Turn "PB7" LED on ("PB6" LED off) gpioout a 61 "Enter" Turn "PB7" LED on ("PB6" LED on) gpioout a 21 "Enter" Turn "PB6" LED off ("PB7" LED off) gpioout a E1 "Enter" Turn "PB6" LED off ("PB7" LED on) gpioout a 61 "Enter" Turn "PB7" LED off ("PB6" LED off) gpioout a E1 "Enter" Turn "PB7" LED off ("PB6" LED on) gpioout a A1 "Enter" Radio Channel Table Channel# Command Frequency (GHz) 11 setchannel 0B "Enter” 2.405 12 setchannel 0C "Enter” 2.41 13 setchannel 0D "Enter” 2.415 14 setchannel 0E "Enter” 2.42 15 setchannel 0F "Enter” 2.425 16 setchannel 10 "Enter” 2.43 17 setchannel 11 "Enter” 2.435 18 setchannel 12 "Enter” 2.44 19 setchannel 13 "Enter” 2.445 20 setchannel 14 "Enter” 2.45 21 setchannel 15 "Enter” 2.455 22 setchannel 16 "Enter” 2.46 23 setchannel 17 "Enter” 2.465 24 setchannel 18 "Enter” 2.47 25 setchannel 19 "Enter” 2.475 26 setchannel 1A "Enter” 2.48 AN120613 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 7 of 9 RF6201EM357 Reference Design Transceiver Power Output Table Transceiver Power Out Command (dBm) -43 settxpower -2b "Enter" -26 settxpower -1a "Enter" -20 settxpower -14 "Enter" -17 settxpower -11 "Enter" -14 settxpower -e "Enter" -11 settxpower -b "Enter" -9 settxpower -9 "Enter" -8 settxpower -8 "Enter" -7 settxpower -7 "Enter" -6 settxpower -6 "Enter" -5 settxpower -5 "Enter" -4 settxpower -4 "Enter" -3 settxpower -3 "Enter" -2 settxpower -2 "Enter" -1 settxpower -1 "Enter" 0 settxpower 0 "Enter" 1 settxpower 1 "Enter" 2 settxpower 2 "Enter" 3 settxpower 3 "Enter" 4 settxpower 4 "Enter" 5 settxpower 5 "Enter" 6 settxpower 6 "Enter" 7 settxpower 7 "Enter" 8 settxpower 8 "Enter" AN120613 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 8 of 9 RF6201EM357 Reference Design Tx Data at 25°C MHz Channel TXVR Power (dBm) Output Power at Antenna (dBm) 2fo (dBm/MHz) 3fo (dBm/MHz) 2405 11 1 23.4 -52.3 -55 2410 12 1 23.4 -52 -54.5 2415 13 1 23.4 -51.3 -54.6 2420 14 1 23.3 -51.3 -55.1 2425 15 1 23.2 -50.7 -55 2430 16 1 23.2 -51.1 -54.7 2435 17 1 23.1 -50.7 -54.7 2440 18 1 23.1 -50 -55.6 2445 19 1 23 -50.5 -55.3 2450 20 1 23 -50.5 -55.4 2455 21 1 22.9 -50 -55.4 2460 22 1 22.9 -49.8 -55.7 2465 23 1 22.9 -49.6 -55.8 2470 24 1 22.8 -49.3 -56 2475 25 1 22.7 -49 -56.2 2480 26 1 22.6 -49 -57 NB: In order to get 23dBm output power at the antenna, an external 3.3V has to be applied to the mother board. RX Sensitivity Performance Sensitivity Data 1% PER (dBm) Channel 11 -104.5 AN120613 Channel 19 -105 Channel 26 -104.5 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or [email protected]. 9 of 9