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TD-LTE dynamic range definition

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wccheng

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Dear all,

I have a question about the dynamic range definition. For 5MHz channel spacing, the dynamic range is 75dB. I have seen some transmitter architechture, it always uses external Power Amplifier. Then, the dynamic range = 75dB does consist of this external power amplifier? Or, this 75dB just count in all on-chip circuit only?

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wccheng
 

vfone

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The dynamic range is given by the output power at antenna connector, which is between +24dBm and -50dBm.
The entire transmitter chain, Modulator, VGA, PA Driver and PA shall contribute for this dynamic range.
 

wccheng

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Thanks for your reply. useful

vfone said:
The dynamic range is given by the output power at antenna connector, which is between +24dBm and -50dBm.
The entire transmitter chain, Modulator, VGA, PA Driver and PA shall contribute for

this dynamic range.
 

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