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AGC implemantation of AD8367 with AD8361

Question asked by opsoftware on Aug 29, 2011
Latest reply on Aug 30, 2011 by jdobler

Hello to all,

Well i have seen the aplication note of AD8367(page 17,fig.38). In the fig. AD8361 is used as a detector but it doesn't have any coupler from AD8367 IC output.My Doubta are:

 

1) So how AD8361 is coupling the RF power from IC AD8367 without using any coupler.

2) If its coupling using resistor R1(200Kohms)(ref. fig. 38 in AD8367 datasheet), wont it affect the matching from IC AD8367.

 

Please reply as sonn possible.

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