CXA1646Q/CXA1767Q
• TONE CONTROL
The tone control function achieves the necessary frequency characteristics by passing through LPF and HPF
shown below.
The resistor is built in the IC so that fL and fH are set by selecting CTLC12 and CTCHC.
I/fL = 2π CTCLC12 (R3//R4)
I/fH = 2π CTCHCR3
LPF
R4
8k
8k
R3
8k
CTCLC12
8k
AGND
AGND
AGND
HPF
10k
10k
10k
R3
5k
10k
CTCHC
AGND AGND
fL
fH
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