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Pin Functions
Pin No.
Pin Name
LC75411ES LC75411WS
L1
38
L2
37
L3
36
L4
35
R1
41
R2
42
R3
43
R4
44
LSEL0
34
RSEL0
1
LVRIN
33
RVRIN
2
LCT
32
RCT
3
LCOM
31
RCOM
4
LVROUT
30
RVROUT
5
LTIN
29
RTIN
6
LC75411ES, 75411WS
Function
40
39
38
37
• Single-end input pin
45
46
47
48
36
• Input selector output pins
1
35
• 2-dB step volume input pins
2
• Perform input at low-impedance.
• Loudness pins. Connect high-pass compensation
34
RC between LCT (RCT) and LVRIN (RVRIN), and
connect low-pass compensation RC between LCT
3
(RCT) and GND.
• 2-dB stop volume output pins.
33
• Connect these pins to GND through coupling
4
capacitors to reduce switching noise.
32
• 0.5-dB step volume output pin
5
31
• Equalizer input pin
6
Equivalent circuit
VDD
LVref
RVref
VDD
VDD
LVref
RVref
VDD
VDD
VDD
VDD
Lvref
RVref
Continued on next page.
No. 6928-17/33
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