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The Designer's Guide Community Forum › Design › RF Design › PA necessary for -10dBm TX output power?
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PA necessary for -10dBm TX output power? (Read 2061 times)
mixed_signal
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PA necessary for -10dBm TX output power?
Dec 23rd, 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
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vp1953
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Re: PA necessary for -10dBm TX output power?
Reply #1 - Dec 24th, 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.
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mixed_signal
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Re: PA necessary for -10dBm TX output power?
Reply #2 - Dec 26th, 2012, 11:07am  
Thank you vp1953! The load is 50ohms
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