ML7436N LSI Hardware Design Manual
FEXL7436NDG-01
15
7.1.2.
Adjustment of LNA input impedance real part to 50Ω
Figure 7.5
shows the inductor Lmatch parallel connection. It adjusts the LNA input impedance real part to 50Ω.
Figure 7.5
Addition of Lmatch
The required inductance is calculated by the formula (1).
L
match
=
1
𝜔
RF
⋅
1
𝜔
RF
⋅ 𝐶
lna
+ √
1
50 ⋅ 𝑅
lna
−
1
𝑅
lna
2
⋯ (1)