EM2531/01 ZigBee- Ready RF Transceiver Modules TABLE OF CONTENTS GENERAL DESCRIPTION ..........................................................................1 Applications................................................................................................. 1 Features....................................................................................................... 1 Absolute Maximum Ratings..........................................................................
EM2531/01 ZigBee- Ready RF Transceiver Modules SIF Module Programming and Debug Interface SIF is a synchronous serial interface developed by Cambridge Consultants Ltd. It is the primary programming and debug interface of the CT-EM2500. The SIF module allows external devices to read and write memory-mapped registers in real-time without changing the functionality or timing of the XAP2b core.
EM2531/01 ZigBee- Ready RF Transceiver Modules RF Frequency, Output Power Levels and Data Rates The following table shows the RF channels as defined by the IEEE 802.15.4 standard. For proprietary solutions (non-IEEE 802.15.4), the RF transceiver can be programmed in resolution of 11.7 KHZ. The output power level can be configured from the firmware in the range -32 to 5 dBm. The RF transceiver uses direct sequence spread spectrum (DSSS) with 2 Mchip/s chip rate, giving a raw data rate of 250 kbit/s.
EM2531/01 ZigBee- Ready RF Transceiver Modules side. The rest of the PCB board should have a ground plane as large as possible, preferably as large (in one dimension) as the antenna itself, to make it act as a a reflector mirror to the antenna. A quarter wavelength Antenna on a PCB must be shorter than the wire antenna due to the influence of the dielectric material of the PCB.
