NJW1148 查看數據表（PDF） - Japan Radio Corporation
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NJW1148 Datasheet PDF : 29 Pages
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PRELIMINARY
NJW1148
< MIXOUT, LFIN, LFOUT Low Pass Filter Setting >
LPF cut off frequency and quality factor are adjusted by the external parts and given by the following
functions.
C1
R1
30
MIXOUT
R2
LFIN
29
C2
28
LFOUT
fc =
1
(Hz)
2π R1⋅ R2 ⋅ C1⋅ C2
Q=
1
C2 ⋅ R1
C1⋅ R2
+
C1⋅ R2
C2 ⋅ R1
–7–
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