Overview
The LC75384NE-R and LC75384NW are electronic
volume and tone control ICs that can implement volume,
balance, fader, bass/treble/mid, loudness, input switching,
and input gain control functions with a minimum number
of external components.
Features
Volume: 81 positions: from 0 dB to 79 dB in 1-dB steps
and
.
A balance function can be implemented by
controlling the left and right volume settings
independently.
Fader: Either the rear or front outputs can be attenuated
over 16 positions. (16 positions: From 0 dB to
2 dB in 1-dB steps, from 2 dB to 20 dB in
2-dB steps, from 20 to 30 dB in one 10-dB step,
45 dB, 60 dB, and
.)
Bass/treble/mid: Control over 12 dB in 2-dB steps in
each band.
Input gain: The input signal can be amplified by from
0 dB to +18.75 dB in 1.25-dB steps.
Input switching: The left and right channels can each be
selected from one of 5 inputs. (Four are
single-ended inputs and one is a
differential input.)
Loudness: Taps are output from a 2-dB step volume
control ladder resistor starting at the 32-dB
position. A loudness function can be
implemented by attaching external capacitors
and resistors.
On-chip buffer amplifiers minimize the number of
required external components.
Minimal switching noise when no input signals are
present due to fabrication in a silicon gate CMOS
process that minimizes the noise generated by internal
switches.
Use of zero-cross switching circuits for internal switches
minimizes switching noise when signals are present.
Built-in V
DD
/2 reference voltage generator circuit
All controls can be set from serial input data.
CMOS IC
51000TH (OT) No.6169-1/25
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Electronic Volume and Tone Control
for Car Stereo Systems
LC75384NE-R, 75384NW
Ordering number : ENN6169
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.
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.
No.6169-3/25
LC75384NE-R, 75384NW
Parameter
Symbol
Pins
Conditions
Ratings
Unit
min
typ
max
[Input Block]
Input resistance
Rin
L1 to L4, R1 to R4
30
50
70
k
Minimum input gain
Ginmin
L1 to L4, R1 to R4
1
0
+1
dB
Maximum input gain
Ginmax
+16.5
+18.75
+21
dB
Inter-step setting error
ATerr
0.6
dB
Left/right balance
BAL
0.5
dB
[Volume Block]
Input resistance
Rvr
LVRIN, RVRIN, loudness off
113
226
339
k
Inter-step setting error
ATerr
0.5
dB
Left/right balance
BAL
0.5
dB
[Tone Control Block]
Inter-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
Left/right balance
BAL
0.5
dB
[Fader Block]
Input resistance
Rfed
LFIN, RFIN
25
50
100
k
0 dB to 2 dB
0.5
dB
Inter-step setting error
ATerr
2 dB to 20 dB
1
dB
20 dB to 30 dB
2
dB
30 dB to 60 dB
3
dB
Left/right balance
BAL
0.5
dB
Electrical Characteristics
at Ta = 25C, V
DD
= 9 V, V
SS
= 0 V
Overall Characteristics
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Total harmonic distortion
THD 1
V
IN
= 10 dBV, f = 1 kHz
0.004
%
THD 2
V
IN
= 10 dBV, f = 10 kHz
0.006
%
Inter-input crosstalk
CT
V
IN
= 1 Vrms, f = 1 kHz
80
88
dB
Left/right channel crosstalk
CT
V
IN
= 1 Vrms, f = 1 kHz
80
88
dB
Maximum attenuation
V
O
min 1
V
IN
= 1 Vrms, f = 1 kHz
80
88
dB
V
O
min 2
V
IN
= 1 Vrms, f = 1 kHz, INMUTE, with the fader set to
90
95
dB
Output noise voltage
V
N
1
All controls flat, with the IHF-A filter
5
10
V
V
N
2
All controls flat, with a 20 Hz to 20 kHz bandpass filter
7
15
V
Current drain
I
DD
33
40
mA
Input high-level current
I
IH
CL, DI, CE, V
IN
= 9 V
10
A
Input low-level current
I
IL
CL, DI, CE, V
IN
= 0 V
10
A
Maximum input voltage
V
CL
THD = 1 %, R
L
= 10 k
, all controls flat, f
IN
= 1 kHz
2.5
2.9
Vrms
Common-mode rejection ratio
CMRR
V
IN
= 0 dBV, f = 1 kHz
45
dB
No.6169-4/25
LC75384NE-R, 75384NW
Pin Assignment
34 33
35
36
37
38
39
40
41
42
43
44
45
46
47
48
32
49
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
4
1
2
3
5
6
7
8
9
10 11 12 13 14 15 16
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
LTOUT
LF3C3
LF3C2
LF3C1
LF2C3
LF2C2
LF2C1
LF1C3
LF1C2
LF1C1
LTIN
LVROUT
LCOM
LCT
LVRIN
LSELO
L5P
LFIN
L5M
LFOUT
L4
LROUT
L3
LAVSS
L2
LZCLP
L1
DVSS
LVref
CL
LC75384NW
LC75384NE-R
V
DD
DI
Vref
CE
RVref
MUTE
R1
R2
R3
R4
RAVSS
RZCLP
TIM
RROUT
R5M
R5P
RFOUT
RFIN
(Top view)
RSE
LO
RVR
IN
R
CT
RC
OM
RVRO
UT
RT
IN
RF1
C1
RF1C2
RF1
C3
RF2
C1
RF2
C2
RF2
C3
RF3
C1
RF3
C2
RF3
C3
RTO
UT
200
0
400
600
800
1000
1200
1400
40
20
0
20
40
60
80
100
Allowable power dissipation, Pdmax -- mW
Ambient temperature, Ta --
C
Mounted on the printed circuit board
Independent IC
Printed circuit board: 114.3
76.2
1.5 mm
3
Pd max -- Ta
[LC75384NE-R]
[LC75384NW]
0.2
0
0.4
0.6
0.8
1.0
1.2
1.04
0.50
1.4
20
0
20
40
60
80
100
Allowable power dissipation, Pdmax -- W
Pd max -- Ta
Ambient temperature, Ta --
C
Mounted on the stipulated printed circuit board
0.42
0.20
Independent IC
Printed circuit board size: 114.3
76.1
1.6 mm
3
Printed circuit board material: Fiberglass/epoxy
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