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Cascading two HMC994 amplifiers with equalizers

In my circuit, I have cascaded HMC994 amplifier, blocking capacitor, 0dB gain equalizer, blocking capacitor, HMC994 amplifier, blocking capacitor, and 5dB gain equalizer in series. As per design calculation cascaded gain should be (14 - 0 + 14 - 5) 23dB or at least 18dB should be come. But practically its come as 13 dB only. Can any one explain why is the spec as per datasheet not met ? Or is there any conditions applicable while connecting the amplifier with equalizer? Kindly provide the solution for my Query. Thanks in advance.



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[edited by: aandrews at 1:04 PM (GMT -4) on 10 Aug 2021]
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