Bubec UM2455 User Manual Download Page 3

UM2455

 

 

AN-2455-06 <Rev. 0.0> 

page 3/ 11 

 
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 

NC NC NC 

NC NC NC 

NC NC NC 

GPIO0 

DIO 

General purpose digital I/O, also used as an external 
PA enable 

RESETN 

DI 

Global hardware reset pin, active low 

WAKE 

DI 

External wake up trigger, active high / low can be 
programmable. 

INT 

DO 

Interrupt pin to micro-processor : 
Level trigger, Hi / Low programmable 

SO 

DIO 

Serial interface data output from UM2455 or I2C clock

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 

 
 

Summary of Contents for UM2455

Page 1: ...ed Date 2009 02 10 The content of this technical document is subject to change without notice Please contact UBEC for further information All rights are strictly reserved Any portion of this document...

Page 2: ...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...

Page 3: ...xternal 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...

Page 4: ...le 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 sig...

Page 5: ...X Output Power 3V Pout UM2455 0dBm 10 dBm TX EVM 3V Pout UM2455 0dBm 10 18 RX Sensitivity 3V PER 5 100 dBm Communication Range 3V PER 5 LOS 500 m For detailed functional descriptions and electrical ch...

Page 6: ...15 2420 2425 2430 2435 2440 2445 2450 2455 2460 2465 2470 2475 2480 Frequence MHz EVM Figure 4 TX EVM 4 3 RX Sensitivity 110 105 100 95 90 85 80 2405 2410 2415 2420 2425 2430 2435 2440 2445 2450 2455...

Page 7: ...in C27 15p F C26 15p F RXEN TXEN RF4 OUT1 1 GND 2 OUT2 3 VA 6 IN 5 VB 4 S1 AS 179 92 PA_VL 11 RF_ANT 10 LNA_VL 9 LNA_VL 14 LNA_Vb 15 LNA_Vcc1 16 GND 17 LNA_out 1 NC 2 PA_in 3 PA_Vcc 6 PA_Vb 5 PA_VL 4...

Page 8: ...UM2455 AN 2455 06 Rev 0 0 page 8 11 6 Mechanical Dimension Figure 6 Module Dimensions...

Page 9: ...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 b...

Page 10: ...UM2455 AN 2455 06 Rev 0 0 page 10 11 Revision History Revision Date Description of Change 0 0 2009 02 10 Initial release...

Page 11: ...9 E mail fae ubec com tw 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 WIT...

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