Description
   The EM9201/02 is a low-voltage 2.4GHz transceiver IC with built-in link-layer logic permitting proprietary wireless links in the 2.400 … 2.485 GHz ISM band. It has a radio core with a low-IF architecture and GFSK modulation scheme being compliant with the emerging Bluetooth low energy technology standard.

FEATUREs
◾ Single cell 1.5V battery operation (Alkaline AA, AAA)
◾ Operation down to VBAT = 0.8 V (for start-up --> 1.0V)
◾ 3 V Lithium battery as alternative
◾ Bluetooth Low Energy-compliant GFSK modulation
◾ Low drift of PLL frequency by design
◾ On air data rate: 1Mb/s for EM9201, configurable 1Mb/s
   or 2Mb/s for EM9202.
◾ Programmable RF output level:
   -20 dBm … + 4dBm in 8 steps
◾ No antenna matching elements needed through
   appropriate PCB antenna design :
◾ 200 Ω differential impedance of antenna port
◾ Low-cost 26MHz Xtal
◾ BLD function: battery level detection in accordance with
   selected battery
◾ Current consumption (on VCC, VCC =2.1V, 2Mb/s )
   12.5 mA in RX
   11.5 mA in TX (0dBm output power)
   3.0 µA in sleep-mode (DC/DC running on RCosc) 1)
   0.8 µA in power-down mode (3V version, DC/DC off)
   1) External load reduced to < 500µA
◾ MLF24 4x4 package

APPLICATIONs
◾ Remote sensing in general
◾ Wireless mouse, keyboard etc.
◾ Wireless sensors in watches
◾ Wireless sports equipment
◾ Alarm and security systems