CMX90A003 MMIC PA and EV90A003 Evaluation Board for CMX90A003

CML Micro's CMX90A003 is a two-stage, fully matched MMIC PA delivering 29.5 dBm of saturated power for use in the 860 MHz to 960 MHz frequency range, applicable to license-free bands. The device is optimized for efficiency at low collector voltages of 1.9 V to 2.5 V, making it suitable for systems with supercapacitor backup storage, thus extending the discharge period or battery life.

The CMX90A003 is highly integrated for ease-of-use, minimizing external component count and reducing board area. RF input and output matching is incorporated on-chip, as well as active bias circuitry and an input DC-blocking capacitor. Using advanced GaAs HBT technology to provide a combination of high efficiency and gain, the CMX90A003 is ideally suited as a booster PA to extend the wireless range of sub-1 GHz low-power RF transceivers.

The EV90A003 embeds the CMX90A003 on a printed circuit board featuring a careful layout that is essential for optimum RF and thermal performance. The PCB consists of four layer FR-4 with a total thickness of 1.6 mm and the EV90A003 PCB is 50 mm x 50 mm. The microstrip RF input and output width is 0.35 mm.