1Volt, 2Mbps, 2.4GHz GFSK Transceiver



The EM9203 is a 1Mbps or 2Mbps low-power, low-voltage, completely-integrated 2.4GHz ISM band RF transceiver ideal for battery operated wireless applications such as wireless sensors and control, audio streaming, human interface devices, and security networks. The EM9203’s built-in baseband processor (with Link Layer) permits implementation of optimized proprietary wireless protocol links in the license-free 2.4000GHz to 2.4835GHz ISM band.  It includes a low-IF receiver architecture and uses GFSK modulation compliant with the emerging Bluetooth Low Energy (4.0) standard.  An industry-standard SPI interface provides for simple control of the baseband using an external host controller.  The EM9203 Version 01 features an integrated step-up (boost) DC/ DC converter that allows operation with supply voltages as low as 0.8V with an external coil.  This converter is designed to support an additional load such as a low-power microcontroller (host) and interface circuits with a dedicated application profile.  The EM9203 Version 02 can be supplied by a 3V battery or other voltage source. Available chip versions: I Version 01:  with DC/DC converter for use with 1.5V battery (down to 0.8V) I Version 02:  without DC/DC converter for use with any voltage from 1.9V to 3.6V



- Low Voltage: · Single-cell, 1.5V battery operation (down to 0.8V); or · 3V battery operation (1.9V to 3.6V)

- Low Power:

    · 14mA in RX Mode (2Mbps)

    · 14mA in TX Mode (0°dBm output power, 2Mbps) 

    · <3μA in Xtreme Mode (Version 01)

    · <1μA in Power-Down Mode (Version 02)

- High Performance: · -85dBm sensitivity at 2Mbps · Programmable output power from -18dBm to +3dBm

- Compact radio design with low BOM cost:

    · MLF28 4mm x 4mm package

    · Operating Temperature: -40°C to +85°C

    · Direct antenna interface

    · Integrated DC/DC converter (Version 01)

    · Supply Voltage Level Detector (SVLD)

    · 26MHz crystal oscillator, frequency tolerance ±50ppm

- Flexible interface:

    · Microcontroller compatible SPI interface

    · FPGA access to modulator and demodulator

    · External PA control signal available 


- Remote sensing and control

- Wireless audio streaming

- Wireless mice, keyboards, toys etc.

- Wireless watch sensors, sports equipment


HCTech Technology Co.,Ltd.