UM2455 UM2455 M-Power500 Module User Manual Application Note AN-2455-06 The content of this technical document is subject to change without notice. Please contact UBEC for further information. Version: 0.0 Released Date: 2009/02/10 All rights are strictly reserved. Any portion of this document shall not be reproduced, copied, or transformed to any other forms without prior permission from Uniband Electronic Corp. * AN-2455-06 <Rev. 0.0> page 1/ 11 UM2455 UM2455 M-Power500 Module User Manual 1. General Information The M-Power500 module satisfies the requirements of low-power and long-range wireless sensor applications. It integrates UBEC’s UM2455 2.4GHz transceiver with UBEC’s RF front-end IC UP2268 to extend the transmitting and the receiving distance at low current consumption. Both the low current consumption and long distance capability are especially suitable for battery-limited applications. The module’s flexible and reliable interface allows the users to develop configurations appropriate for their applications. The M-Power500 module, derived from UBEC’s M-stamp module, operates within the ISM 2.4 – 2.5 GHz frequency band and contains UBEC’s UM2455, UP2268 and other necessary components such as crystal oscillator, inductors and capacitors. The transceiver within the UM2455 chip features a maximum of 5 MHz serial interface SPI bus for control and data transfer. It is a simple SPI interface slave device consisting of a 4-wire bus (SCLK, SI, SO, and SEN) that provide accesses to various subunits such as MAC/BB/RF control/status registers, TXFIFOs, RXFIFOs and security key table. The UP2268 is an RF front-end IC integrating a high-efficiency, linear power amplifier (PA), a switch and a low noise amplifier (LNA). Its low current consumption and inherent power gain enable the designers to meet the challenges of the battery operation and long distance requirements demanded by many applications. In addition, the small module form factor (QFN3x3) saves the valuable board space. 2. Features * ISM band 2.405~2.480 GHz operation 3.0~3.6V Operation Sleep Current: 3uA (typical) >500m Range (Environment dependent) Chip Antenna Receiver Sensitivity: -101dBm TX Power : 10dBm TX Current : 54mA RX Current : 26mA Size: 38.35mmx 14.00mm AN-2455-06 <Rev. 0.0> page 2/ 11 UM2455 Figure 1 shows the top view of a M-Power500 with a chip antenna. The PCB size is 38.35mm x 14.00 mm. Figure 1. M-Power500 Module 3. Pin Configuration UM2455 M-Power500 module pin assignments and their functions are described below. * Pin Number Pin Name Type Description 1 NC NC NC 2 NC NC NC 3 NC NC NC 4 GPIO0 DIO General purpose digital I/O, also used as an external PA enable 5 RESETN DI Global hardware reset pin, active low 6 WAKE DI External wake up trigger, active high / low can be programmable. 7 INT DO Interrupt pin to micro-processor : Level trigger, Hi / Low programmable 8 SO DIO Serial interface data output from UM2455 or I2C clock 9 SI DIO Serial interface data input to UM2455 or I2C data in/out 10 SCLK DI Serial interface clock 11 SEN DI Serial interface enable 12 NC NC NC 13 NC NC NC 14 NC NC NC 15 NC NC NC 16 CLKOUT DIO 20/10/5/2.5 MHz Clock output 17 GND Ground Ground 18 VCC Power 3V 19 VCC Power 3V 20 GND Ground Ground 21~31 NC NC NC AN-2455-06 <Rev. 0.0> page 3/ 11 UM2455 UM2455 M-Power500 module pin names and pin number allocation map are shown in Figure 2. It can interface with other devices such as a sensor, an LED, a host controller, a push button, a joystick or power relays through GPIO signals. Figure 2. M-Power500 Module Pin Names and Location Map * AN-2455-06 <Rev. 0.0> page 4/ 11 UM2455 4. Electrical Specifications Item Specifications Conditions Min. Frequency Range Typ. Max. Unit 2.405 2.480 GHz 3.0 3.6 V Input Voltage Current Consumption (TX) 3V, Pout=10dBm 54 mA Current Consumption (RX) 3V, 26 mA TX Output Power 3V, Pout(UM2455)=0dBm 10 dBm TX EVM 3V, Pout(UM2455)=0dBm RX Sensitivity 3V, PER<=5% -100 dBm Communication Range 3V, PER<=5%, LOS 500 m 10 18 % For detailed functional descriptions and electrical characteristics of the UM2455 chip, please refer to UM2455 datasheet, DS-2455-01. 4.1. TX Output Power 12 10 dBm 8 6 TX Power 4 2 0 2405 2410 2415 2420 2425 2430 2435 2440 2445 2450 2455 2460 2465 2470 2475 2480 Frequence (MHz) Figure 3. TX Output Power * AN-2455-06 <Rev. 0.0> page 5/ 11 UM2455 4.2. TX EVM 30 25 % 20 15 10 EVM 5 0 2405 2410 2415 2420 2425 2430 2435 2440 2445 2450 2455 2460 2465 2470 2475 2480 Frequence (MHz) Figure 4. TX EVM 4.3. RX Sensitivity -80 -85 Sensitivity dBm -90 -95 -100 -105 -110 2405 2410 2415 2420 2425 2430 2435 2440 2445 2450 2455 2460 2465 2470 2475 2480 Frequence (MHz) Figure 5. RX Sensitivity * AN-2455-06 <Rev. 0.0> page 6/ 11 UM2455 5. Schematic The schematic below is suitable for operation with a bias voltage between 3.0 and 3.6V. If a lower bias voltage between 2.7 and 3.0V is desired, certain resistors in this schematic have to be replaced. Please consult UBEC for further information. RF4 C3 1pF R4 0R/NA RF3 L2 4.7nH C6 0.5pF C4 0.5pF L3 C1 10nF 7.5nH ANT1 ANTENNA VCC L1 4.7nH VCC L4 RF1 GPIO0 RF2 2.2nH L10 TXEN R5 0R 1.8nH R3 33 1 2 3 4 5 6 7 8 0R/NA VCC C11 100pF GND VDD_RF1 RF_P RF_N VDD_RF2 VDD_GR GND_GR GPIO0 GPIO1 RF7 TXEN RXEN TL C10 10nF C16 1pF TL RF11 C17 47pF TL RF10 12 11 9 TL RF13 10 C9 27pF X1 20MHz C8 27pF 24 23 22 21 20 19 18 17 C7 47pF U3 TL1 R1 1.5K RXEN UM2455 XTAL32_P XTAL32_N CLK_OUT SCAN_M SCAN_EN SPI/I2C GND_D VDD_D L5 1nH RF_LNA PA_VL RF_ANT LNA_VL C29 GND RF 12 RF15 C13 NC S G G S NC C30 TL RF15 TL L8 1nH RF 14 0.5pF C35 10nF VCC 15 17 GND TL C22 330pF CLKOUT_20M VCC VCC C19 0.1uF 1K L6 2nH TL C33 NC TL C24 330pF VCC TL3 1 TL2 RF5 3 2 4 C32 NC 1nH L9 2268-EXT PA_VL PA_in NC LNA_out TL4 R2 C31 3pF U1 L7 3.9nH TL RF6 R2 VCC C20 0.1uF TXEN TXout TL RX in TL VCC C18 47pF C23 330pF REFERENCE ONLY C25 39pF 1K C21 0.1uF GPIO0 RESETN WAKE INT SO SI SCLK SEN CLKOUT_20M GPIO0 RESETN WAKE INT SO SI SCLK SEN CLKOUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 J1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 31 30 29 28 27 26 25 24 23 22 21 20 19 18 CONN PCB 31 31 30 29 28 27 26 25 24 23 22 21 20 19 18 OUT1 GND OUT2 VA IN VB S1 C2 10uF 6 4 RXEN RF4 TXEN C27 15p F 5 C26 15p F C5 100nF VCC RXEN TXEN Reference Only 3 2 1 AS179-92 U ib d E page 7/ 11 AN-2455-06 <Rev. 0.0> * 14 LN A_VL 16 LNA_Vc c1 PA_Vb 5 LA N_in RF _PA LN A_Vb PA_Vc c 6 PA_Vc c 7 13 8 32 31 30 29 28 27 26 25 LO OP_C VDD _VCO VDD_CP VDD_PLL XTAL_P XTAL_N VDD_A VDD_BG GP IO2 RESTn W AKE INT SO SI SC LK SEN RXE N 9 10 11 12 13 14 15 16 RESETN W AKE W AKE INT INT SO SO SI SI SC LK SC LK SEN SE N RF 16 UM2455 6. Mechanical Dimension Figure 6. Module Dimensions * AN-2455-06 <Rev. 0.0> page 8/ 11 UM2455 7. Antenna Topology Notice: (1) Antenna should be put on the edge of the system. (2) Be sure that there is no obstacles (components and ground ) in the radiation direction (3) Do not put any ground plane and/or circuit beneath the antenna region for the system boards. Figure 7. Recommended Antenna Location Figure 8. Example of Poor Antenna Locations * AN-2455-06 <Rev. 0.0> page 9/ 11 UM2455 Revision History * Revision Date 0.0 2009/02/10 Description of Change Initial release AN-2455-06 <Rev. 0.0> page 10/ 11 UM2455 Contact UBEC: Headquarters Address: 6F-1, No. 192, Dongguang Rd., Hsinchu, 300 Taiwan Tel: +886-3-5729898 Fax:+886-3-5718599 Website: http://www.ubec.com.tw Sales Services Tel: +886-3-5729898 Fax:+886-3-5718599 E-mail: [email protected] FAE Services Tel: +886-3-5729898 Fax: +886-3-5718599 E-mail: [email protected] DISCLAIMER ALTHOUGH TO THE BEST KNOWLEDGE OF THE UNIBAND ELECTRONIC CORPORATION (UBEC) THIS DOCUMENT IS ADEQUATE FOR ITS INTENDED PURPOSES, UBEC MAKES NO WARRANTY OF ANY KIND WITH REGARD TO ITS COMPLETENESS AND ACCURACY. UBEC EXPRESSLY DISCLAIMS ANY AND ALL OTHER WARRANTIES, WHETHER EXPRESSED, IMPLIED, OR STATUTORY INCLUDING WITHOUT LIMITATION WARRANTIES OF TITLE, MERCHANTABILITY, NON-INFRINGENT, AND FITNESS FOR A PARTICULAR PURPOSE, WHETHER ARISING IN LAW, CUSTOM, CONDUCT OR OTHERWISE. * AN-2455-06 <Rev. 0.0> page 11/ 11