CMD284 datasheet(13/15 Pages) QORVO

13 / 15 page

CMD284

DC-22 GHz Distributed Amplifier

Data Sheet | August 23, 2021 | Subject to change without notice

13 of 15

www.qorvo.com

Applications Information

Application Circuit

Note: Drain voltage (Vdd) must be applied through a broadband bias tee or external bias network.

Biasing and Operation

The CMD284 is biased with a positive drain supply and positive gate supply. Performance is optimized when the drain

voltage is set to +8.0 V. The recommended gate voltage is +3.0 V.

Turn ON procedure:

Apply drain voltage Vdd and set to +8 V

Apply gate voltage Vgg and set to +3 V

Turn OFF procedure:

Turn off gate voltage Vgg

Turn off drain voltage Vdd

The preferred biasing procedure has been proven to be robust and should be used whenever possible. However, the

CMD284 does allow for simultaneous biasing (applying Vdd and Vgg at the same time).

Refer to Application Note 103: Amplifier Biasing Techniques for instructions.

Vgg

0.1 uF

100 pF

Vdd

RF out

RF in

CMD284 Datasheet(PDF) 13 Page - Qorvo, Inc