application note SKY65120: WCDMA PA Bias Method For Lower Junction Temperature Introduction This application note describes how SKY65120 may be used with reduced bias control to obtain better thermal performance.
It is especially useful for customers who may not have a suitable heat sink available directly below the PA module.
To achieve high gain (23 dB), the SKY65120 consists of two stages of amplification.
The base current of each amplification stage is controlled by an on-die active bias circuit.
Each active bias circuit has its own reference voltage supply, Vref1 and Vref2.
The bias voltage (Vc_Bias) is shared by the two active bias circuits.
This application note describes the active...

Since 2006. D4U Semicon,
Electronic Components Datasheet Search Site. (Privacy Policy & Contact)