Talk:RF chain

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Error with P1dB and ITOI Equations

The second term in the denominator needs to be either [cumulative Gain(n-1)/(input)P1dB(n)] or [cumulative Gain(n)/(output)P1dB(n)]. This can be confirmed by using reference 17 and translating it to the input equivalent.

This is more easily derived from the TOI/IP3 equations. The third order equivalent is [cumulative Gain(n-1)/(input)TOI(n)] or [cumulative Gain(n)/(output)TOI(n)]

If not fixed, OTOI = ITOI + Gain does not hold.

Reference 17 using the same P1dB equation as Cascade Calculator - Qorvo. This is also where the equivalent TOI equation is. ~2025-38018-67 (talk) 22:26, 2 December 2025 (UTC)

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