UM2455
*
AN-2455-06 <Rev. 0.0>
page 2/ 11
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