Description Features Applications Downloads Design Resources

SµRF RFICs and MMICs

CMX902 Broadband Efficient RF Power Amplifier

The CMX902 is a three stage high-gain and high efficiency RF power amplifier. The device is ideally suited for use in VHF and UHF frequency bands up to 700MHz. The first and second stages of the amplifier operate in a class-A and class-AB mode respectively, and the third stage operates in a class-C mode for maximum efficiency. External components are required to match the device input and output ports to 50 Ohms. The CMX902 is available in a small footprint 5mm x 5mm, low thermal resistance 28-pin WQFN package making it ideal for small form factor applications such as data modules as well as handheld radio terminals.

Devices are available through our Distributor Network.

CMX902_block_diagram-1

Features

Wide operating frequency range 130MHz to 700MHz
Typical output power:
– 2.8W operating at 160MHz (4V)
– 1.75W operating at 435MHz (3.3V)
High power gain up to 39dB
High power added efficiency up to 60% at VHF
Single polarity supply voltage 2.5V to 6V
Small 28 pin WQFN package

Applications

Marine AIS Class-B and Marine AIS-SART
Wireless data communications FSK, FFSK/MSK, GFSK/GMSK, Multi-level FSK
Analogue FM handheld radio terminals
Automatic meter reading (AMR)
Wireless sensor networks Mesh/Ad hoc systems
Remote control and sensing systems
Commercial and consumer communications

Power Supply Requirement

2.5 to 6 V

Downloads

CMX902 Product Preview CMX902 Datasheet (rev2)

Design Resources

Evaluation Kit Package

EV9011/EV9021

The EV9011/EV9021 are Evaluation Kits for the CMX901 and CMX902. These products are wideband RF power amplifiers with high efficiency and high gain and may be used as power amplifiers or driver amplifiers.

Documents

EV9011+EV9021_Product_Preview (rev 1)

EV9011_EV9021 User Manual (rev 1)

Knowledge Base

EV9011/EV9021 Support Pack. Gerbers, tooling, layer stack and BOM for the EV9011/EV9021 Evaluation Kit. Version A01.
– Download

EV9021-160 Board Schematics. Hi-res schematic for EV9021-160 Evaluation Kit 160MHz variant. Version A01.
– Download

EV9021-435 Board Schematics. Hi-res schematic for EV9021-435 Evaluation Kit 435MHz variant. Version A01.
– Download