Sanyo LC75386NW Specifications
Overview
The LC75386NE-R and 75386NW are electronic volume
and tone control ICs that can implement volume, balance,
fader, bass/treble, 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: 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 6 inputs. (Five 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 VDD/2 reference voltage generator circuit
• All controls can be set from serial input data.
CMOS IC
33000TN (OT) No.6170-1/24
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
LC75386NE-R, 75386NW
Ordering number : ENN6170
• 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.6170-2/24
LC75386NE-R, 75386NW
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
SANYO: QIP64E
[LC75386NE-R]
10.0
12.0
1.25
0.51.25
1.25 0.5 1.250.18
12.0
116
17
32
33
48
49
64
10.0
0.5
1.7max
0.5
0.1
0.15
SANYO: SQFP64E
[LC75386NW]
Package Dimensions
unit: mm
3159-QIP64E 3190-SQFP64
Parameter Symbol Conditions
Ratings
Unit
min typ max
Supply voltage V
DD
V
DD
6.0 10.5 V
Input high-level voltage V
IH
CL, DI, CE, MUTE 4.0 V
DD
V
Input low-level voltage V
IL
CL, DI, CE, MUTE V
SS
1.0 V
Input voltage amplitude V
IN
V
SS
V
DD
Vp-p
Input pulse width t
øW
CL 1 µs
Setup time t
setup
CL, DI, CE 1 µs
Hold time t
hold CL, DI, CE 1 µs
Operating frequency fopg CL 500 kHz
Allowable Operating Ranges at Ta = 25°C, VSS= 0 V
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 a printed
LC75386NE-R 500
mW
circuit board
LC75386NW 420
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
No.6170-3/24
LC75386NE-R, 75386NW
Parameter Symbol Pins Conditions
Ratings
Unit
min typ max
[Input Block]
Input resistance Rin L1 to L4, L6, R1 to R4, R6 30 50 70 kΩ
Minimum input gain Ginmin L1 to L4, L6, R1 to R4, R6 –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 kΩ
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
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 kΩ
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 = 25°C, VDD= 9 V, VSS= 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 µV
V
N
2 All controls flat, with a 20 Hz to 20 kHz bandpass filter 7 15 µV
Current drain I
DD
33 40 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, all controls flat, fIN= 1 kHz 2.5 2.9 Vrms
Common-mode rejection ratio CMRR V
IN
= 0 dB, f = 1 kHz 45 dB
No.6170-4/24
LC75386NE-R, 75386NW
Pin Assignment
34 333536373839404142434445464748
3249
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
41 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
NC
NC
NC
LF1C3
LF1C2
LF1C1
LTIN
LVROUT
LCOM
LCT
LVRIN
LSELO
L5P LFIN
L5M LFOUT
L4 LROUT
L3 LAV
SS
L2 LZCLP
L1 DV
SS
L6 CL
LC75386NE-R
LC75386NW
V
DD
DI
Vref CE
R6 MUTE
R1 RAV
SS
R2 RZCLP
R3 TIM
R4 RROUT
R5M RFOUT
R5P RFIN
(Top view)
RSELO
RVRIN
RCT
RCOM
RVROUT
RTIN
RF1C1
RF1C2
RF1C3
NC
NC
NC
RF3C1
RF3C2
RF3C3
RTOUT
200
0
400
600
800
1000
1200
1040
500
1400
–40 –20 0 20 40 60 80 100
420
200
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
Pd max — Ta
[LC75386NE-R] [LC75386NW]
Allowable power dissipation, Pdmax — mW
Pd max — Ta
Ambient temperature, Ta — °C
Mounted on the stipulated printed circuit board
Independent IC
Printed circuit board size: 114.3 × 76.1 × 1.6t mm
Printed circuit board material: Fiberglass/epoxy
No.6170-5/24
LC75386NE-R, 75386NW
Equivalent Circuit and Sample Application Circuit Diagram
DI
VDD
VDD
CE
CL
0.033
µ
F
1 M
Ω
47 k
Ω
10
µ
F
10
µ
F
PA
L5P
L5M
L4
LFIN
µ
COM
RFIN
RFOUT
RROUT
TIM
RZCLP
RAVSS
MUTE
CE
DI
CL
LZCLP
LAVSS
LROUT
LFOUT
31
35 34 33
32
LOGIC CIRCUIT
ZERO CROSS DET
Multiplexer
ZERO CROSS DET
CCB
INTERFACE
30
29
28
27
26
25
24
23
22
21
20
19
18
17
PA
DVSS
10
µ
F
PA
10
µ
F
PA
36373839404142434445464748
14 15 1613121110987654321
504951
52
53
54
55
56
57
58
59
60
61
62
63
64
L3
L2
L1
VDD
Vref
R1
R2
R3
1
µ
×
6
R4
R5M
R5P
[BASS fo=100Hz] [TREBLE fo=10000Hz]
1 µF
0.033
µ
F
0.01
µ
F
330p F
10
µ
F
LF3C1
LF3C2
LF3C3
LTOUT
LF1C2
NC
NC
NC
NC
NC
NC
LF1C3
LF1C1
LVROUT
LTIN
LVref
Vref
LVref
LCOM
LSELO
LVRIN
LCT
10 µF
220pF
1
µ
F
0.1
µ
F68 k
Ω
4.7 k
Ω
10 µF
CONTROL
CIRCUIT
NO SIGNAL
TIMER
Multiplexer
[BASS fo=100Hz] [TREBLE fo=10000Hz]
1 µF
0.033
µ
F
0.01
µ
F
330pF
10
µ
F
RF3C1
RF3C2
RF3C3
RTOUT
RF1C2
RF1C3
RF1C1
RVROUT
RTIN
Vref
Vref
RVref
RVref
RCOM
RSELO
RVRIN
RCT
10 µF
RVref
220p F
1
µ
F
0.1
µ
F68 k
Ω
4.7 k
Ω
10 µF
22
µ
F
LVref
LVref
RVrefLVref
LVref
RVref RVref
R6
L6
1 M
Ω
• In the LC75386NW version, LZCLP (pin 28) and RZCLP (pin 21) are unused, and must be left open.
Vref
1 M
Ω
No.6170-6/24
LC75386NE-R, 75386NW
Pin Functions
Pin No. Pin Function Notes
• Single end inputs
54
53
52
51
55
59
60
61
62
58
L1
L2
L3
L4
L6
R1
R2
R3
R4
R6
V
DD
LVref
RVref
• Input selector outputs
48
1
LSEL0
RSEL0
V
DD
• Differential inputs
50
49
63
64
L5M
L5P
R5M
R5P
V
DD
M
V
DD
P
LVref
RVref
• Inputs for the 2-dB step volume control
• These inputs must be driven from low-impedance circuits.
47
2
LVRIN
RVRIN
V
DD
LVref
RVref
• Loudness function pins. Connect the high-band
compensation RC circuits between the LCT (RCT) and the
LVRIN (RVRIN) pins and connect the low-band
compensation RC circuits between the LCT (RCT) and Vref.
46
3
LCT
RCT
V
DD
• 2-dB step volume control outputs
• To reduce switching noise, each of these pins should be
connected to Vref through a capacitor.
45
4
LCOM
RCOM
V
DD
• Equalizer input
43
6
LTIN
RTIN
Continued on next page.
V
DD
LVref
RVref
No.6170-7/24
LC75386NE-R, 75386NW
Continued from preceding page.
Pin No. Pin Function Equivalent circuit
• Equalizer input
33
16
LTOUT
RTOUT
V
DD
• Fader block inputs
• These inputs must be driven from low-impedance circuits.
32
17
LFIN
RFIN
V
DD
• Fader block outputs. The front and rear outputs can be
attenuated independently. The attenuation is the same in
the left and right channels.
31
30
18
19
LFOUT
LROUT
RFOUT
RROUT
V
DD
• Connections for the capacitors that for the tone control
circuit attenuation filter.
The low band compensation capacitors must be connected
between the following pins:
LF1C1 (RF1C1) and LF1C2 (RF1C2)
LF1C2 (RF1C2) and LF1C3 (RF1C3)
42
41
40
7
8
9
LF1C1
LF1C2
LF1C3
RF1C1
RF1C2
RF1C3
• Connections for the capacitors that for the tone control
circuit attenuation filter.
The low band compensation capacitors must be connected
between the following pins:
LF3C1 (RF3C1) and LF3C2 (RF3C2)
LF3C2 (RF3C2) and LF3C3 (RF3C3)
36
35
34
13
14
15
LF3C1
LF3C2
LF3C3
RF3C1
RF3C2
RF3C3
Continued on next page.
• Unused pins. These pins are not connected to the chip.
39
38
37
10
11
12
NC
NC
NC
NC
NC
NC
• VDD/2 voltage generator block. A capacitor with a value of
about 10 µF must be inserted between Vref and AV
SS(VSS
)
to reduce power supply ripple.
57 Vref
V
DD
LVref
RVref
C2
C3
C1
V
DD
LVref
RVref
No.6170-8/24
LC75386NE-R, 75386NW
Continued from preceding page.
Pin No. Pin Function Equivalent circuit
• Serial data and clock inputs used for device control
26
25
CL
DI
V
DD
V
DD
• Used for the zero cross circuit no-signal timer function.
If a zero cross signal does not occur between the point
when data is loaded and the point when the timer times out,
the data will be stored forcibly when the timer times out.
20 TIM
V
DD
LVref
RVref
• Band limiting for the zero cross detection circuit
• These pins are normally left open.
• These pins are unused in the LC75386NW version and
must be left open.
28
21
LZCLP
RZCLP
24 CE
• Chip enable input. Data is written to the internal latch when
this pin goes from high to low. The analog switches then
operate.
Data transfers are enabled when this pin is high.
44
5
LVROUT
RVROUT
• 1-dB step volume control output
• Power supply56
V
DD
• Logic system ground27
DV
SS
• Analog system ground
29
22
LAV
SS
RAV
SS
V
DD
• External muting control
• When this pin is set to the V
SS
level, the fader volume block
is forcibly set to – ∞.
23 MUTE
LC75386NE-R only
V
DD
Loading...