Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Why do we need off chip output matching network for PA?

Status
Not open for further replies.
pigkiller

pigkiller

Member level 4
Joined
May 28, 2003
Messages
70
Helped
1
Reputation
2
Reaction score
0
Trophy points
1,286
Location
Hangzhou
Activity points
590
why not use on chip matching network for power amplifier?
it is because on chip inductors have not enough Q or just use off chip matching network for tuning?
who can tell me why?
 

Re: Why do we need off chip output matching network?

Low Q factor of on chip inductors meeans power loss, specially in high power circuits like power amplifiers, this loss can degrade overal chip efficiency, but for small signall blocks like LNA, Mixer and oscillators, with precise design, performance degradation can be minimized....

BEST!
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top