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Design >> RF Design >> PA necessary for -10dBm TX output power?
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Message started by mixed_signal on Dec 23^rd, 2012, 7:15pm

Title: PA necessary for -10dBm TX output power?
Post by mixed_signal on Dec 23^rd, 2012, 7:15pm

I am designing a transmitter with o/p power of -10dBm. This translates to a peak to peak voltage 200mV. Is there any necessity of power amplifier if the O/P is available from a LC oscillator capable of generating such Vpp=200mV

Title: Re: PA necessary for -10dBm TX output power?
Post by vp1953 on Dec 24^th, 2012, 2:54pm

Hi,

The output is going to a 50 ohm trace? then you need a buffer otherwise it might load your VCO heavily and stop it from working.

Title: Re: PA necessary for -10dBm TX output power?
Post by mixed_signal on Dec 26^th, 2012, 11:07am

Thank you vp1953! The load is 50ohms