Sanyo LC75411ES User manual

Ordering number : ENN6928
62901RM (OT) No. 6928-1/34
Overview
The LC75411ES and 75411WS are electronic volume
controllers that enable control of volume, balance, fader,
bass/treble, loudness, input switching, and input gain
using only a small number of external components.
Functions
• Volume: 0 dB to –79.5 dB in 0.5-dB steps, and –∞(161
positions) Balance function with separate L/R
control
• Fader: rear output or front output can be attenuated
across 16 positions (in 1-dB steps from 0 dB to
–2 dB, 2-dB steps from –2 dB to 20 dB, 10-dB
steps from –20 dB to –30 dB, and –45 dB,
–60 dB, –∞)
• Bass/treble: Both bass and treble can be controlled in
1-dB steps from 0 dB to ±6 dB, and in 2-dB
steps from ±8 dB to ±12 dB.
• Input gain: 0 dB to +18.75 dB (1.25-dB steps)
amplification is possible for the input signal.
• Input switching: four input signals can be selected for
Left and for Right
• Loudness: A tap is output from the –32 dB position of a
2 dB step volume control resistor ladder.
A loudness function can be implemented by
connecting an external RC circuit.
Features
• On-chip buffer amplifier cuts down number of external
components
• Low switching noise generated by on-chip switch
through use of silicon gate CMOS process, for low
switching noise when there is no signal
• Low switching noise when there is a signal due to use
of on-chip zero-cross switching circuit
• On-chip 1/2 VDD reference voltage circuit
• Controls performed with serial input (CCB)
LC75411ES, 75411WS
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Electronic Volume Controller
for Car Audio Systems
CMOS IC
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
• CCB is a trademark of SANYO ELECTRIC CO., LTD.
• CCB is SANYO’s original bus format and all the bus
addresses are controlled by SANYO.

No. 6928-2/33
LC75411ES, 75411WS
Package Dimensions
unit: mm
3148-QIP44MA
unit: mm
3163A-SQFP48
2.8max
0.8
11.6
0.35
10.0
13.2
1.0
11112
22
23
33
34
44
1.01.6
0.8
2.5
0.2
0.1
10.0
13.2
1.0 1.0 1.6
0.8
SANYO: QIP44MA
[LC75411ES]
0.5
7.0 9.0
0.15
0.180.75 0.5 0.75
0.75
0.5
0.75
0.5
0.1
1 12
13
24
25
36
37
48
7.0
9.0
1.7max
SANYO: SQFP48
[LC75411WS]
Pin Assignment
[LC75411ES]
54321
44
43
42
41
40
39
38
37
36
35
34
2425262728293033 32 31 23
16
15
14
13
12
11109876
22
21
20
19
18
17
LSELO
L4
L3
L2
L1 LC75411ES
VDD
Vref
R1
R4
R3
R2
RSELO
RVRIN
RCT
RCOM
RVROUT
RTIN
RF1C1 RF1C2 RF1C3 RF3C1
RTOUT
RFIN
RFOUT
RROUT
TIM
TEST
CE
DI
CL
VSS
LROUT
LFOUT
LFIN LTOUT LF3C1 LF1C3 LF1C2 LF1C1
LTIN LVROUT LCOM
LVRIN
LCT

No. 6928-3/33
LC75411ES, 75411WS
Equivalent Circuit Block Diagram
[LC75411ES]
DI CE CL 0.033µF
10µF 10µFPA
L4
LFIN
Microcontroller
RFIN RFOUT RROUT TIM TESTVDD CE DI CL LROUT LFOUT
22
24
23
LOGIC CIRCUIT
ZEROCROSS DET ZEROCROSS DET
CCB
INTERFACE
21 20 19 18 17 16 15 14 13 12
PA
VSS
10µFPA 10µFPA
2526272829
11109876
35 36 37 38 39 40 41 42 43 44
L3 L2 L1
LVref
VDD
Vref RVref
R1
R2 R3
1µF ×4
R4
[TREBLE] [TREBLE][BASS fo=100Hz]
0.1µF
0.1µF
2700pF
10µF
LF3C1
LTOUT
LF1C2
LF1C3
LF1C1
LTIN
10µF
CONTROL
CIRCUIT
NO SIGNAL
TIMER
Multiplexer Multiplexer
[BASS fo=100Hz]
0.1µF
2700pF
10µF
RF3C1
RTOUT
RF1C2
RF1C3
RF1C1
RTIN
22µF
3031323334
LVROUT
LVref
LCOM
LSELO
LVRIN
LCT
10µF
220pF
1µF
0.1µF
68kΩ
4.7kΩ
LVref
RVrefLVref
54321
RVROUT
RVref
RCOM
RSELO
RVRIN
RCT
10µF
10µF
220pF
1µF0.1µF
68kΩ
4.7kΩ
RVref
0.1µF

No. 6928-4/33
LC75411ES, 75411WS
Sample Application Circuit
[LC75411ES]
0.033µF
54321
44
43
42
41
40
39
38
37
36
35
34
2425262728293033 32 31 23
16
15
14
13
12
11109876
22
21
20
19
18
17
4.7kΩ
4.7kΩ
68kΩ
68kΩ
220pF
220pF
2700pF
2700pF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
10µF
10µF
10µF
Micro-
controller
10µF
10µF
1µF
1µF
10µF
10µF
1µF
1µF
LSELO
L4
L3
L2
L1
VDD LC75411ES
VDD
Vref
R1
R4
R3
R2
RSELO
RVRIN
RCT
RCOM
RVROUT
RTIN
RF1C1 RF1C2 RF1C3 RF3C1
RTOUT
RFIN
RFOUT
RROUT
TIM
TEST
CE
DI
PA
CL
DVSS
LROUT
LFOUT
LFIN LTOUT LF3C1 LF1C3 LF1C2 LF1C1
LTIN LVROUT
LCOM LVRIN LCT
1µF
22µF
1µF
1µF
1µF
1µF
1µF
10µFPA
10µFPA
10µFPA

No. 6928-5/33
LC75411ES, 75411WS
Pin Assignment
[LC75411WS]
LC75411WS
48
47
46
45
44
43
42
41
40
39
38
L4
L3
L2
L1
NC
VDD
Vref
NC
R3
R2
R1
54321 11109876
RSELO
RVRIN
RCT
RCOM
RVROUT
RTIN
RF1C1 RF1C2 RF1C3 RF3C1
RTOUT
17
16
15
14
13
23
22
21
20
19
18
RFIN
RFOUT
RROUT
TIM
TEST
CE
DI
CL
VSS
LROUT
LFOUT
2627282930313235 34 33 25
NC LTOUT LF3C1 LF1C3 LF1C2 LF1C1
LTIN LVROUT LCOM
LVRIN
LCT
12
24
36
37
NC
LFIN
LSELO
R4

No. 6928-6/33
LC75411ES, 75411WS
Equivalent Circuit Block Diagram
[LC75411WS]
DI CE CL
0.033µF
10µF 10µFPA
L4 LFIN
Microcontroller
RFIN RFOUT RROUT TIM TESTVDD
CE DI CL
LROUT LFOUT
23
26
24
LOGIC CIRCUIT
ZEROCROSS DET
Multiplexer ZEROCROSS DET CCB
INTERFACE
22 21 20 19 18 17 16 15 14 13
PA
VSS
10µFPA 10µFPA
2728293031
11109876
37 38 39 40 42 43 45 46 47 48
L3 L2
NC
L1
LVref
VDD
Vref RVref
R1
R2 R3
1µF ×4
NC
R4
[TREBLE] [TREBLE][BASS fo=100Hz]
0.1µF
0.1µF
2700pF
10µF
LF3C1
NC
LTOUT
LF1C2
LF1C3
LF1C1
LTIN
10µF
CONTROL
CIRCUIT
NO SIGNAL
TIMER
Multiplexer
[BASS fo=100Hz]
0.1µF
0.1µF
2700pF
10µF
RF3C1
NC
RTOUT
RF1C2
RF1C3
RF1C1
RTIN
22µF
3233343536
LVROUT
LVref
LCOM
LSELO
LVRIN
LCT
10µF
220pF
1µF
0.1µF
68kΩ
4.7kΩ
LVref
RVrefLVref
54321
RVROUT
RVref
RCOM
RSELO
RVRIN
RCT
10µF
10µF
220pF
1µF
0.1µF
68kΩ
4.7kΩ
RVref
12
44
25
41

No. 6928-7/33
LC75411ES, 75411WS
Sample Application Circuit
[LC75411WS]
54321
47
48
46
45
44
43
42
41
40
39
38
37
262728293031323536 34 33 25
17
16
15
14
13
1211
109876
24
23
22
21
20
19
18
4.7kΩ
4.7kΩ
68kΩ
68kΩ
220pF
220pF
2700pF
2700pF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
10µF
10µF10µF
Micro-
controller
10µF
10µF
1µF
1µF
10µF
10µF
1µF
1µF
L3
L2
L1
VDD LC75411WS
VDD
Vref
R3
NC
R2
R1
RSELO
RVRIN
NC
RCT
RCOM
RVROUT
RTIN
RF1C1 RF1C2 RF1C3 RF3C1
RTOUT
RFIN
RFOUT
RROUT
TIM
TEST
CE
DI
PA
CL
LFIN
VSS
LROUT
LFOUT
NC
LTOUT LF3C1 LF1C3 LF1C2 LF1C1
LTIN LVROUT
LCOM LVRIN LCT
LSELO
1µF
22µF
1µF
1µF
1µF
10µFPA
10µFPA
10µFPA
L4
1µF
R4
1µF
NC

No. 6928-8/33
LC75411ES, 75411WS
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage VDD max VDD 11 V
Maximum input voltage VIN max All input pins VSS – 0.3 to VDD + 0.3 V
Allowable power dissipation Pd max Ta ≤85°C, when mounted on board LC75411ES 600 mW
LC75411WS 550
Operating temperature Topr –40 to +85 °C
Storage temperature Tstg –50 to +125 °C
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter Symbol Conditions Ratings Unit
min typ max
Supply voltage VDD VDD 6.0 10.5 V
Input high-level voltage VIH CL, DI, CE, TEST 4.0 10.5 V
Input low-level voltage VIL CL, DI, CE, TEST VSS 1.0 V
Input amplitude voltage VIN VSS VDD Vp-p
Input pulse width TøW CL 1 µs
Setup time Tsetup CL, DI, CE 1 µs
Hold time Thold CL, DI, CE 1 µs
Operating frequency fopg CL 500 kHz
Allowable Operating Ranges at Ta = 25°C, VSS = 0 V
Parameter Symbol Pin Name Conditions Ratings Unit
min typ max
[Input block]
Input resistance Rin L1 to L4, R1 to R4 25 50 100 kΩ
Minimum input gain Ginmin L1 to L4, R1 to R4 –1 0 +1 dB
Maximum input gain Ginmax +16.5 +18.75 +21 dB
Step setting error ATerr ±0.5 dB
L/R balance BAL ±0.5 dB
[Volume Block]
Input resistance Rvr LVRIN, RVRIN, loudness off 113 226 452 kΩ
Step setting error ATerr ±0.5 dB
L/R balance BAL ±0.5 dB
[Tone block]
Step setting error ATerr ±1.0 dB
Bass control range Gbass max. boost/cut ±9 ±12 ±15 dB
Treble control range Gtre max. boost/cut ±9 ±12 ±15 dB
L/R balance BAL ±0.5 dB
Electrical Characteristics at Ta = 25°C, VDD = 9 V, VSS = 0 V
Continued on next page.

No. 6928-9/33
LC75411ES, 75411WS
Parameter Symbol Pin Name Conditions Ratings Unit
min typ max
[Fader Block]
Input resistance Rfed LFIN, RFIN 25 50 100 kΩ
0dB to –2dB ±0.5 dB
Step setting error ATerr –2dB to –20dB ±1 dB
–20dB to –30dB ±2 dB
–30dB to –60dB ±3 dB
L/R balance BAL ±0.5 dB
[General]
Total harmonic distortion THD (1) VIN = –10dBV, f = 1 kHz 0.004 0.01 %
THD (2) VIN = –10dBV, f = 10 kHz 0.006 0.01 %
Input crosstalk CT VIN = 1Vrms, f = 1 kHz 80 88 dB
L/R crosstalk CT VIN = 1Vrms, f = 1 kHz 80 88 dB
Maximum attenuated output Vomin (1) VIN = 1Vrms, f = 1 kHz 80 88 dB
Vomin (2) VIN = 1Vrms, f = 1 kHz 90 95 dB
INMUTE, fader –∞
Output noise voltage VN(1) Flat overall, IHF-A filter 5 10 µV
VN(2) Flat overall, 20 to 20 kHzBPF 7 15 µV
Current drain IDD 33 40 mA
Input high-level current IIH CL, DI, CE, VIN = 9 V 10 µA
Input low-level current IIL CL, DI, CE, VIN = 0 V –10 µA
Maximum input voltage VCL THD = 1%, RL= 10 kΩ2.5 2.9 Vrms
flat overall, fIN = 1 kHz
Continued from preceding page.
Control Timing and Data Format
To control the LC75411ES and LC75411WS input specified serial data to the CE, CL, and DI pins.
The data configuration consists of a total of 52 bits broken down into 8 address bits and 44 data bits.
CE
DI D43D42D41D40D39D38D5D4D3D2D0 D1A3A2A1A0B3B2B1B0
CL
1µs
min
1µs
min
1µs min ≤TDEST
1µs
min
1µs
min
1µs
min
CE
DI
CL

Address code (B0 to A3)
The LC75411ES and 75411WS use 8-bit address code and can be used in common with ICs that support SANYO’s CCB
serial bus.
Address Code
(LSB) (81HEX)
Control code allocation
Input Switching Control
No. 6928-10/33
LC75411ES, 75411WS
B0 B1 B2 B3 A0 A1 A2 A3
1 0 0 0 0 0 0 1
D0 D1 D2 Setting Setting
0 0 0 L1 (R1)
1 0 0 L2 (R2)
0 1 0 L3 (R3)
1 1 0 L4 (R4)
0 1 1 For IC testing: Normally not used
1 1 1
D3 Bit for IC testing: Normally set to 0
Input Gain Control
D4 D5 D6 D7 Operation
0 0 0 0 0dB
1 0 0 0 +1.25dB
0 1 0 0 +2.50dB
1 1 0 0 +3.75dB
0 0 1 0 +5.00dB
1 0 1 0 +6.25dB
0 1 1 0 +7.50dB
1 1 1 0 +8.75dB
0 0 0 1 +10.0dB
1 0 0 1 +11.25dB
0 1 0 1 +12.5dB
1 1 0 1 +13.75dB
0 0 1 1 +15.0dB
1 0 1 1 +16.25dB
0 1 1 1 +17.5dB
1 1 1 1 +18.75dB

No. 6928-11/33
LC75411ES, 75411WS
Volume Control (0 to –20.5dB)
D8 D9 D10 D11 D12 D13 D14 D15 Operation
0 0 0 0 0 0 0 0 0dB
0 0 0 0 0 0 0 1 –0.5dB
1 0 0 0 0 0 0 0 –1dB
1 0 0 0 0 0 0 1 –1.5dB
0 1 0 0 0 0 0 0 –2dB
0 1 0 0 0 0 0 1 –2.5dB
1 1 0 0 0 0 0 0 –3dB
1 1 0 0 0 0 0 1 –3.5dB
0 0 1 0 0 0 0 0 –4dB
0 0 1 0 0 0 0 1 –4.5dB
1 0 1 0 0 0 0 0 –5dB
1 0 1 0 0 0 0 1 –5.5dB
0 1 1 0 0 0 0 0 –6dB
0 1 1 0 0 0 0 1 –6.5dB
1 1 1 0 0 0 0 0 –7dB
1 1 1 0 0 0 0 1 –7.5dB
0 0 0 1 0 0 0 0 –8dB
0 0 0 1 0 0 0 1 –8.5dB
1 0 0 1 0 0 0 0 –9dB
1 0 0 1 0 0 0 1 –9.5dB
0 1 0 1 0 0 0 0 –10dB
0 1 0 1 0 0 0 1 –10.5dB
1 1 0 1 0 0 0 0 –11dB
1 1 0 1 0 0 0 1 –11.5dB
0 0 1 1 0 0 0 0 –12dB
0 0 1 1 0 0 0 1 –12.5dB
1 0 1 1 0 0 0 0 –13dB
1 0 1 1 0 0 0 1 –13.5dB
0 1 1 1 0 0 0 0 –14dB
0 1 1 1 0 0 0 1 –14.5dB
1 1 1 1 0 0 0 0 –15dB
1 1 1 1 0 0 0 1 –15.5dB
0 0 0 0 1 0 0 0 –16dB
0 0 0 0 1 0 0 1 –16.5dB
1 0 0 0 1 0 0 0 –17dB
1 0 0 0 1 0 0 1 –17.5dB
0 1 0 0 1 0 0 0 –18dB
0 1 0 0 1 0 0 1 –18.5dB
1 1 0 0 1 0 0 0 –19dB
1 1 0 0 1 0 0 1 –19.5dB
0 0 1 0 1 0 0 0 –20dB
0 0 1 0 1 0 0 1 –20.5dB

No. 6928-12/33
LC75411ES, 75411WS
Volume Control (–21 to –40.5dB)
D8 D9 D10 D11 D12 D13 D14 D15 Operation
1 0 1 0 1 0 0 0 –21dB
1 0 1 0 1 0 0 1 –21.5dB
0 1 1 0 1 0 0 0 –22dB
0 1 1 0 1 0 0 1 –22.5dB
1 1 1 0 1 0 0 0 –23dB
1 1 1 0 1 0 0 1 –23.5dB
0 0 0 1 1 0 0 0 –24dB
0 0 0 1 1 0 0 1 –24.5dB
1 0 0 1 1 0 0 0 –25dB
1 0 0 1 1 0 0 1 –25.5dB
0 1 0 1 1 0 0 0 –26dB
0 1 0 1 1 0 0 1 –26.5dB
1 1 0 1 1 0 0 0 –27dB
1 1 0 1 1 0 0 1 –27.5dB
0 0 1 1 1 0 0 0 –28dB
0 0 1 1 1 0 0 1 –28.5dB
1 0 1 1 1 0 0 0 –29dB
1 0 1 1 1 0 0 1 –29.5dB
0 1 1 1 1 0 0 0 –30dB
0 1 1 1 1 0 0 1 –30.5dB
1 1 1 1 1 0 0 0 –31dB
1 1 1 1 1 0 0 1 –31.5dB
0 0 0 0 0 1 0 0 –32dB
0 0 0 0 0 1 0 1 –32.5dB
1 0 0 0 0 1 0 0 –33dB
1 0 0 0 0 1 0 1 –33.5dB
0 1 0 0 0 1 0 0 –34dB
0 1 0 0 0 1 0 1 –34.5dB
1 1 0 0 0 1 0 0 –35dB
1 1 0 0 0 1 0 1 –35.5dB
0 0 1 0 0 1 0 0 –36dB
0 0 1 0 0 1 0 1 –36.5dB
1 0 1 0 0 1 0 0 –37dB
1 0 1 0 0 1 0 1 –37.5dB
0 1 1 0 0 1 0 0 –38dB
0 1 1 0 0 1 0 1 –38.5dB
1 1 1 0 0 1 0 0 –39dB
1 1 1 0 0 1 0 1 –39.5dB
0 0 0 1 0 1 0 0 –40dB
0 0 0 1 0 1 0 1 –40.5dB

No. 6928-13/33
LC75411ES, 75411WS
Volume Control (–41 to –59.5dB)
D8 D9 D10 D11 D12 D13 D14 D15 Operation
1 0 0 1 0 1 0 0 –41dB
1 0 0 1 0 1 0 1 –41.5dB
0 1 0 1 0 1 0 0 –42dB
0 1 0 1 0 1 0 1 –42.5dB
1 1 0 1 0 1 0 0 –43dB
1 1 0 1 0 1 0 1 –43.5dB
0 0 1 1 0 1 0 0 –44dB
0 0 1 1 0 1 0 1 –44.5dB
1 0 1 1 0 1 0 0 –45dB
1 0 1 1 0 1 0 1 –45.5dB
0 1 1 1 0 1 0 0 –46dB
0 1 1 1 0 1 0 1 –46.5dB
1 1 1 1 0 1 0 0 –47dB
1 1 1 1 0 1 0 1 –47.5dB
0 0 0 0 1 1 0 0 –48dB
0 0 0 0 1 1 0 1 –48.5dB
1 0 0 0 1 1 0 0 –49dB
1 0 0 0 1 1 0 1 –49.5dB
0 1 0 0 1 1 0 0 –50dB
0 1 0 0 1 1 0 1 –50.5dB
1 1 0 0 1 1 0 0 –51dB
1 1 0 0 1 1 0 1 –51.5dB
0 0 1 0 1 1 0 0 –52dB
0 0 1 0 1 1 0 1 –52.5dB
1 0 1 0 1 1 0 0 –53dB
1 0 1 0 1 1 0 1 –53.5dB
0 1 1 0 1 1 0 0 –54dB
0 1 1 0 1 1 0 1 –54.5dB
1 1 1 0 1 1 0 0 –55dB
1 1 1 0 1 1 0 1 –55.5dB
0 0 0 1 1 1 0 0 –56dB
0 0 0 1 1 1 0 1 –56.5dB
1 0 0 1 1 1 0 0 –57dB
1 0 0 1 1 1 0 1 –57.5dB
0 1 0 1 1 1 0 0 –58dB
0 1 0 1 1 1 0 1 –58.5dB
1 1 0 1 1 1 0 0 –59dB
1 1 0 1 1 1 0 1 –59.5dB

No. 6928-14/33
LC75411ES, 75411WS
Volume Control (–60 to –∞)
D8 D9 D10 D11 D12 D13 D14 D15 Operation
0 0 1 1 1 1 0 0 –60dB
0 0 1 1 1 1 0 1 –60.5dB
1 0 1 1 1 1 0 0 –61dB
1 0 1 1 1 1 0 1 –61.5dB
0 1 1 1 1 1 0 0 –62dB
0 1 1 1 1 1 0 1 –62.5dB
1 1 1 1 1 1 0 0 –63dB
1 1 1 1 1 1 0 1 –63.5dB
0 0 0 0 0 0 1 0 –64dB
0 0 0 0 0 0 1 1 –64.5dB
1 0 0 0 0 0 1 0 –65dB
1 0 0 0 0 0 1 1 –65.5dB
0 1 0 0 0 0 1 0 –66dB
0 1 0 0 0 0 1 1 –66.5dB
1 1 0 0 0 0 1 0 –67dB
1 1 0 0 0 0 1 1 –67.5dB
0 0 1 0 0 0 1 0 –68dB
0 0 1 0 0 0 1 1 –68.5dB
1 0 1 0 0 0 1 0 –69dB
1 0 1 0 0 0 1 1 –69.5dB
0 1 1 0 0 0 1 0 –70dB
0 1 1 0 0 0 1 1 –70.5dB
1 1 1 0 0 0 1 0 –71dB
1 1 1 0 0 0 1 1 –71.5dB
0 0 0 1 0 0 1 0 –72dB
0 0 0 1 0 0 1 1 –72.5dB
1 0 0 1 0 0 1 0 –73dB
1 0 0 1 0 0 1 1 –73.5dB
0 1 0 1 0 0 1 0 –74dB
0 1 0 1 0 0 1 1 –74.5dB
1 1 0 1 0 0 1 0 –75dB
1 1 0 1 0 0 1 1 –75.5dB
0 0 1 1 0 0 1 0 –76dB
0 0 1 1 0 0 1 1 –76.5dB
1 0 1 1 0 0 1 0 –77dB
1 0 1 1 0 0 1 1 –77.5dB
0 1 1 1 0 0 1 0 –78dB
0 1 1 1 0 0 1 1 –78.5dB
1 1 1 1 0 0 1 0 –79dB
1 1 1 1 0 0 1 1 –79.5dB
0 1 1 1 1 1 1 0 –∞

No. 6928-15/33
LC75411ES, 75411WS
Tone Control
D16 D17 D18 D19 D40 Bass
D24 D25 D26 D27 D42 Treble
0 1 1 0 0 +12dB
1 0 1 0 0 +10dB
0 0 1 0 0 +8dB
1 1 0 0 0 +6dB
1 1 0 0 1 +5dB
0 1 0 0 0 +4dB
0 1 0 0 1 +3dB
1 0 0 0 0 +2dB
1 0 0 0 1 +1dB
0 0 0 0 0 0dB
1 0 0 1 1 –1dB
1 0 0 1 0 –2dB
0 1 0 1 1 –3dB
0 1 0 1 0 –4dB
1 1 0 1 1 –5dB
1 1 0 1 0 –6dB
0 0 1 1 0 –8dB
1 0 1 1 0 –10dB
0 1 1 1 0 –12dB
D20 D21 D22 D23 D41 Setting
0 0 0 0 0 Set to 0
Fader Volume Control
D28 D29 D30 D31 Operation
0 0 0 0 0dB
1 0 0 0 –1dB
0 1 0 0 –2dB
1 1 0 0 –4dB
0 0 1 0 –6dB
1 0 1 0 –8dB
0 1 1 0 –10dB
1 1 1 0 –12dB
0 0 0 1 –14dB
1 0 0 1 –16dB
0 1 0 1 –18dB
1 1 0 1 –20dB
0 0 1 1 –30dB
1 0 1 1 –45dB
0 1 1 1 –60dB
1 1 1 1 –∞
Channel Selection Control
D32 D33 Operation
0 0 Initial setting mode: Rapid charging
1 0 RCH
0 1 LCH
1 1 L/R simultaneously

No. 6928-16/33
LC75411ES, 75411WS
Fader Rear/Front Control
D34 Setting
0 Rear
1 Front
Loudness Control
D35 Setting
0 OFF
1 ON
Test Mode Control
D43 Setting
0 For IC testing. Always set to 0.
Zero-Cross Control
D36 D37 Setting
0 0 Data write through zero-cross detection
1 1 Zero-cross detection stopped (data write at falling edge of CE)
Zero-Cross Signal Detection Block Control
D38 D39 Setting
0 0 Selector
1 0 Volume
0 1 Tone
1 1 Fader

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

No. 6928-18/33
LC75411ES, 75411WS
Pin Name Pin No. Function Equivalent circuit
LC75411ES LC75411WS
• Equalizer F1 band filter configuration capacitor
connection pins.
Connect capacitor between
LF1C1 (RF1C1) and LF1C2 (RF1C2)
LF1C2 (RF1C2) and LF1C3 (RF1C3)
LF1C1
LF1C2
LF1C3
RF1C1
RF1C2
RF1C3
28
27
26
7
8
9
30
29
28
7
8
9
Vref
VDD
VDD
FnC1
TIN VDD
VDD
FnC3
VDD
FnC2
• Equalizer F3 band circuit filter configuration
capacitor connection pins.
Connect high-pass compensation capacitor
between LF3C1 (RF3C1) and VSS.
LF3C1
RF3C1
25
10
27
10
C1
VDD
• Equalizer output pins
LTOUT
RTOUT
24
11
26
11
VDD
• Fader block input pins
• Drive at low impedance.
LFIN
RFIN
23
12
24
13
VDD
• Fader output pins. Attenuation is possible separately
for the front end and rear end. The attenuation
amount is the same for L and R.
LFOUT
LROUT
RFOUT
RROUT
22
21
13
14
23
22
14
15
VDD
• Connect a capacitor of a few tens of µF between
Vref and VSS as a 0.55 VDD voltage generator,
current ripple countermeasure.
Vref 40 43
VDD
LVref
RVref
Continued from preceding page.
Continued on next page.

No. 6928-19/33
LC75411ES, 75411WS
Pin Name Pin No. Function Equivalent circuit
LC75411ES LC75411WS
• Power supply pinVDD 39 42
• Ground pinVSS 20 21
• Dedicated IC test pin
• Normally this pin is used connected to GND.
TEST 16 17
VDD
• Timer pin when there is no signal in the zero-cross
circuit.
Forcibly set data when there is no zero-cross signal,
from the time the data is set until the timer ends.
TIM 15 16
VDD
• Input pin for serial data and clock used for control
CL
DI
19
18
20
19
VDD
• Chip enable pin. Data is written to the internal latch
and the analog switches are operated when the
level changes from High to Low.
Data transfer is enabled when the level is High.
CE 17 18
• No Connect pin. Leave this pin open or connect it to
VSS.
NC —
12
25
41
44
Continued from preceding page.

Internal Equivalent Circuit Block Diagram
Selector Block Equivalent Circuit Block Diagram
No. 6928-20/33
LC75411ES, 75411WS
Total resistance: 50 kΩ
Same for right channel
Unit (Resistance: Ω)
1.25dB
2.50dB
3.75dB
5.00dB
6.25dB
7.50dB
8.75dB
LSELO
0dB
50k
50k
50k
50k
LVref
LVref
6.702k
5.804k
5.026k
4.352k
3.769k
3.264k
2.826k
2.447k
2.119k
1.835k
1.589k
1.376k
1.192k
1.032k
0.894k
5.774k
LVref
10.0dB
11.25dB
12.5dB
13.75dB
15.0dB
16.25dB
17.5dB
18.75dB
L4
L3
LVref
LVref
LVref
INMUTE SW
L2
L1