NJW1150
I Definition of cut-off frequency for Tone Control
Cut-off frequency for Tone Control is adjustable with changing the capacitor C1, C2 in below circuit.
See the next function for the cut-off frequency.
Tone
Control
LTIN/RTIN
LTOUT/RTOUT
LTC/RTC
LBC1/RBC1
LBC2/RBC2
LBC3/RBC3
4.7uF
C1
C2
10uF
EX) C1 =10uF, C2 = 680nF
Cut-off frequency for Treble = 3.9kHz
Cut-off frequency for Bass = 238Hz
1) TREBLE =+/-10dB
fc
=
39.2 ∗10
C1
−6
2) BASS =+/-10dB
fc
=
161.7 ∗10 −6
C2
-9-