Ordering number : ENN7027
O1901RM (OT) No. 7027-1/28
Overview
The LC75410E and 75410W are electronic volume
controllers that enable control of volume, balance, fader,
bass/treble/mid, 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/mid: Each band 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: five input signals can be selected for
Left and for Right (Four are singleended inputs and one is a differential
input.)
• 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)
LC75410E, 75410W
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. 7027-2/28
LC75410E, 75410W
Package Dimensions
unit: mm
3159-QIP64E
unit: mm
3190-SQFP64
14.0
17.2
1.0
1.0
1.6
0.15
0.35
0.1
15.6
0.8
0.8
3.0max
1
16
17
32
33
48
49
64
2.7
14.0
17.2
1.0
1.0
1.6
0.8
10.0
12.0
1.25
0.5
1.25
1.25 0.5 1.250.18
12.0
1 16
17
32
33
48
49
64
10.0
0.5
1.7max
0.5
0.1
0.15
SANYO: SQFP64
[LC75410W]
Pin Assignment
LC75410E
LC75410W
5 4 3 2 1 11 10 9 8 7 6
RSELO
RVRIN
RCT
RCOM
RVROUT
RTIN
RF1C1
RF1C2
RF1C3
RF2C1
RF2C2
21
20
19
18
17
27
26
25
24
23
22
RFIN
RFOUT
RROUT
TIM
NC
RAVSS
MUTE
CE
DI
CL
DVSS
12
28
RF2C313RF3C114RF3C215RF3C3
16
4445464748 383940414243 37 36 35 34 33
RTOUT
TEST
29
LAVSS
30
LROUT
31
LFOUT
32
60
61
62
63
64
54
55
56
57
58
59
53
52
51
50
49
LFIN
R5P
R5M
R4
R3
R2
R1
RVref
Vref
VDD
LVref
L1
L2
L3
L4
L5M
L5P
LSELO
LVRIN
LCT
LCOM
LVROUT
LTIN
LF1C1
LF1C2
LF1C3
LF2C1
LF2C2
LF2C3
LF3C1
LF3C2
LF3C3
LTOUT
No. 7027-3/28
LC75410E, 75410W
Equivalent Circuit Block Diagram/Sample Application Circuit
0.033µF
L5P
+
LFIN
RFIN
NC
TIM
TEST
CE
DI
CL
LOGIC CIRCUIT
ZEROCROSS DET
ZEROCROSS DET
MUTE
TEST
DVSS
VDD
LVref
1µF × 6
1µF × 6
10µF
1µF
220pF
0.001µF0.001µF0.01µF0.1µF 0.1µF 0.01µF
LTOUT
LF3C2
LF3C1
LF3C3
LF2C2
LF2C3
LF2C1
LF1C2
LF1C3
LF1C1
LTIN
LVROUT
LVref
68kΩ
4.7kΩ
0.1µF
10µF
10µF
LCOM
LCT
LVRIN
LSELO
CONTROL
CIRCUIT
NO SIGNAL
TIMER
Multiplexer
Multiplexer
[BASS fo ≈ 100Hz] [MID fo ≈ 1kHz] [TREBLE fo ≈ 10kHz]
0.001µF
0.001µF
10µF
RTOUT
RF3C2
RF3C3
RF3C1
0.01µF
0.01µF
RF2C2
RF2C3
RF2C1
0.1µF
0.1µF
RF1C2
RF1C3
RF1C1
10µF
LVref
LVref
+
Vref
47µF
+
+
RVref
10µF
+
RVref LVref
RVref
RVref
1MΩ
47kΩ
RVROUT
RTIN
RCOM
RSELO
RVRIN
RCT
10µF
10µF
220pF
1µF
68kΩ
4.7kΩ
0.1µF
RVref
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
L5M
+
10µF
PA
LROUT
LFOUT
10µF
PA
10µF
PA
RFOUT
RROUT
10µF
PA
L4+L3+L2+L1
+
R1+R2+R3+R4
+
R5M
+
R5P
+
+
+
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
CCB
INTERFACE
DI
CE
CL
µCOM
LAVSS
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
[BASS fo ≈ 100Hz] [MID fo ≈ 1kHz] [TREBLE fo ≈ 10kHz]
No. 7027-4/28
LC75410E, 75410W
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
DD
max V
DD
11 V
Maximum input voltage V
IN
max All input pins VSS– 0.3 to VDD+ 0.3 V
Allowable power dissipation Pd max Ta ≤ 85°C, when mounted on board
QIP64E 680
mW
SQFP64 800
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 V
DDVDD
6.0 10.5 V
Input high-level voltage V
IH
CL, DI, CE, MUTE 4.0 10.5 V
Input low-level voltage V
IL
CL, DI, CE, MUTE V
SS
1.0 V
Input amplitude voltage V
IN
V
SS
V
DD
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
Mid control range Gmid 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. 7027-5/28
LC75410E, 75410W
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) V
IN
= 0dBV, f = 1 kHz 0.004 0.01 %
THD (2) V
IN
= –10dBV, f = 10 kHz 0.006 0.01 %
Input crosstalk CT V
IN
= 1Vrms, f = 1 kHz 80 88 dB
L/R crosstalk CT V
IN
= 1Vrms, f = 1 kHz 80 88 dB
Maximum attenuated output
Vomin (1) V
IN
= 1Vrms, f = 1 kHz 80 88 dB
Vomin (2)
V
IN
= 1Vrms, f = 1 kHz
90 95 dB
INMUTE, fader –∞
Output noise voltage
V
N
(1) Flat overall, IHF-A filter 5 10 µV
V
N
(2) Flat overall, 20 to 20 kHzBPF 7 15 µV
Current drain I
DD
40 45 mA
Input high-level current I
IH
CL, DI, CE, VIN= 9 V 10 µA
Input low-level current I
IL
CL, DI, CE, VIN= 0 V –10 µA
Maximum input voltage V
CL
THD = 1%, RL= 10 kΩ
2.3 2.8 Vrms
flat overall, f
IN
= 1 kHz
Common-mode rejection ratio CMRR V
IN
= 0 dB, f = 1 kHz 45 70 dB
Continued from preceding page.
Control Timing and Data Format
To control the LC75410E and LC75410W 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
D43 D42 D41 D40 D39 D38 D5 D4 D3 D2 D0 D1 A3 A2 A1 A0 B3 B2 B1 B0
CL
1µs
min
1µs
min
1µs min ≤ T
DEST
1µs
min
1µs
min
1µs
min
CE
DI
CL
Address code (B0 to A3)
The LC75410E and 75410W 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. 7027-6/28
LC75410E, 75410W
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 0 1 L5 (R5)
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. 7027-7/28
LC75410E, 75410W
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. 7027-8/28
LC75410E, 75410W
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. 7027-9/28
LC75410E, 75410W
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