1Mbps, low power 2.4 GHz Transceiver



EM9201 is a 1Mbps low power, low-voltage 2.4GHz transceiver IC with built-in link-layer logic suitable for proprietary wireless links in the 2.4 GHz ISM band.  

EM9201 features a radio core with a low-IF architecture and GFSK modulation scheme being compliant with the Bluetooth low energy technology standard.   

Control of the link-layer logic is possible though a standard SPI interface. To achieve this, an external host-controller MCU is required.  

EM9201 can operate from a 3V battery or any other source of power such as an external LDO regulator.  


- Wide operating voltage range from 1.9V to 3.6V

- Suitable for Lithium battery

- Bluetooth Low Energy-compliant GFSK modulation

- Low drift of PLL frequency by design

- 1Mb/s On air data rate

- High Performance: Programmable RF output level from -18 dBm to +3dBm in 8 steps

- Compact radio design with low BOM cost § MLF24 4x4 package

- Low-cost 26MHz crystal, frequency tolerance ±30ppm

- No antenna matching elements needed through appropriate  PCB antenna design : 200 Ω differential impedance of antenna port

- BLD function: battery level detection in accordance with selected battery

- Current consumption (VCC2 = 2.5V) § 14 mA in RX § 14 mA  in TX (0dBm output power)

- 0.8 μA in power-down mode


Typical Applications

- Remote sensing in general

- Wireless mouse, keyboard etc.

- Wireless sensors in watches

- Wireless sports equipment

- Alarm and security systems


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