RF Power Amplifier PCB printed circuit boardsSpecification: Material: Rogers 4350B 0.762mm Layer: 2L Solder mask:Green Required file: gerber file Copper weight: 35UM Surface finish: ENIG Board size: 22*5CM Quantity: 50pcs Delivery time: 5 days Origin:Shenzhen,China Raw material: American(original) Package:vacuum package+bubble pack Shipping way: Express Terms of payment:T/T,PAYPAL,WESTERNUNIONPower amplifier define: High frequency RF Power Amplifier PCB printed circuit boards Power Amplifier, referred to as "amplifier", it refers to a given distortion rate conditions, to produce the maximum power output to drive a load (such as a speaker) amplifier. PA in the whole sound system played an "organization, coordination," the pivotal role in a way to dominate the whole system can provide a good quality output.Power(Audio)Amplifier PCB Design Tips The most important thing to understand about audio PCB layouts is that copper is not a perfect conductor. It has a small amount of resistance, and a current flowing through a trace will induce small voltage differences at different points along that trace. If you have a power supply draining heavy currents through a ground trace, and then you amplify a signal using another point on that trace as your ground reference, any noise in the power supply will be added to your signal. The characteristics of audio are that it is low frequency but high signal to noise ratio. That means you don't have to worry about transmission line effects and the like. However, you do have to think about every little place noise can come in and try to prevent it in as many ways as possible. Separate filters on the power to any IC is a good idea, something like a small ferrite in series and a cap to ground right at the chip. This is for anything that doesn't handle the final output power. That needs a low impedance connection to the power supply.