BCR400R Datasheet, PDF (6/7 Pages) Siemens Semiconductor Group – Active Bias Controller (Supplies stable bias current even at low battery voltage and extreme ambient temperature variation)

BCR 400R
RF transistor controlled by BCR400
Be aware that BCR 400 stabilizes bias
current of transistors in an active control loop.
In order to avoid loop oscillation (hunting),
time constants must be chosen adequately,
i.e. C1 >= 10 x C2
RX/TX antenna switch, compatible to control logic
and working at wide battery voltage range
Semiconductor Group
6
Nov-27-1996