Anadigics GSM PA layout解释

AWT6166_AWT6171 Design Note Rev 0Design Note Design Recommendation for GSM Handsets, Modules and PDA’s Rev 0

Relevant products
AWT6166 Quad Band GSM/GPRS, AWT6171 Quad Band GSM/GPRS Power Amplifier Modules with integrated Power Control

Introduction
This Design Note applies to the AWT6166 & AWT6171 6x6mm PAMs and summarizes ANADIGICS’ recommendations for improving performance in final applications. This is document is an addition to the “AWT6166 Application Note”.

Recommendations
1. RF Decoupling To comply with any potential radiated contribution around the PAM mostly related to PCB design it is good practice to place two RF decoupling ceramic capacitors on VBATT pin 4 of the AWT6166, as close to the PAM as possible. Also, provision should be made to bypass VBATT at the battery connector with the same level of decoupli