Credit card-sized reference design targets RF cooking

24th May 2016
Source: Ampleon
Posted By : Nat Bowers
Credit card-sized reference design targets RF cooking

Claimed to be the world’s smallest 250W design, Ampleon has announced the availability of a 250W, 2.4-2.5GHz amplifier reference design. The MicroBlaze 250 measures just 80x40x5mm and is suited for use in RF cooking and industrial heating designs where power controllability and a modular design approach are key criteria.

The LDMOS-based MicroBlaze 250 is fabricated on a copper base plate using cost optimised PCB materials and uses Ampleon’s BLC2425M9XS250 ACP-3 air cavity package and BLP27M810 power transistors. It is fully balanced in terms of gain and power efficiency and is a ready-to-copy amplifier reference design that can be incorporated into an end product. Optimised for BOM cost, customers can gain a significant time-to-market advantage by using this reference design in their application.

With a 21dBm input the MicroBlaze 250 provides a 36dB gain and a 250W output measured at P1dB compression. The module has a rugged VSWR characteristic and can sustain 60s up to 10:1. It is powered from a +32VDC supply and consumes 20A. Capable of operating in most environments it has an operating temperature range of +5 to +100°C.


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