SANYO LC7536M

Ordering number : EN6089
CMOS IC
LC7536M
Serially Controlled Electronic Volume Control that
Handles High Voltages
Overview
Package Dimensions
The LC7536M is an electronic volume control that
implements volume, balance, and loudness functions with
a minimum number of external components, and can be
controlled electronically with serial data.
unit: mm
3216A-MFP30S
[LC7536M]
30
16
15
10.5
9.2
0.15
2.15
15.3
0.65
2.5max
1
0.35
1.0
0.65
0.1
• Volume: 81 positions from 0 to –79 dB (in 1-dB steps)
and –∞. Since the left and right channels can
be controlled separately, a balance function can
be implemented easily.
• Loudness: A tap is output from the –20 dB position of a
5 dB step volume control resistor ladder. A
loudness function can be implemented by
connecting an external RC circuit.
• S (select): Up to two LC7536M ICs can be used on the
same bus.
• Serial data input: The LC7536M supports control and
communication in the CCB format.
7.9
Functions
SANYO: MFP30S
Features
• High voltage handling capability: ±16 V.
• 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.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
41399RM (OT) No. 6089-1/10
LC7536M
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter
Symbol
Maximum supply voltage
Maximum input voltage
Allowable power dissipation
Conditions
Ratings
Unit
VDD max
VEE ≤ VSS < VCC < VDD
VSS to VSS + 18
VEE max
VEE ≤ VSS < VCC < VDD
VSS – 18 to VSS
V
VCC max
VEE ≤ VSS < VCC < VDD
VSS to VSS + 7
V
VIN max1
CL, DI, CE
0 to VCC + 0.3
V
VIN max2
L5dBIN, R5dBIN, L1dBIN, R1dBIN
VEE – 0.3 to VDD + 0.3
V
VIN max3
S
VCC – 0.3 to VDD + 0.3
Ta ≤ 75°C
Pd max
V
V
250
mW
Operating temperature
Topr
–30 to +75
°C
Storage temperature
Tstg
–40 to +125
°C
Allowable Operating Ranges at Ta = –30 to +75°C, VSS = 0 V
Parameter
Supply voltage
High-level input voltage
Low-level input voltage
Input voltage amplitude
Symbol
Ratings
Conditions
min
typ
Unit
max
VDD
VDD
VCC + 4.5
16
V
VEE
VEE
–16
0
V
VCC
VCC
VIH1
CL, DI, CE
VIH2
S
VIL1
CL, DI, CE
VIL2
VIN
4.5
5
5.5
V
VCC
V
0.8 × (VDD – VCC) + VCC
VDD
V
VSS
0.2 VCC
V
S
VCC
0.2 × (VDD – VCC) + VCC
L5dBIN, R5dBIN, L1dBIN, R1dBIN
VEE
VDD
0.8 VCC
V
Vp-p
Input pulse width
tøW
CL
1
µs
Setup time
tsetup
CL, DI, CE
1
µs
Hold time
thold
CL, DI, CE
1
Operating frequency
fopg
CL
µs
500
kHz
Electrical Characteristics at Ta = 25°C, VSS = 0 V
Parameter
Symbol
THD1
VIN = 1 Vrms, f = 1 kHz, all controls flat overall,
VDD – VEE = 32 V
THD2
Total harmonic distortion
Crosstalk
Output at maximum attenuation
Output noise voltage
Total resistance
Output off leakage current
Conditions
CT
Vo min
VN
Ratings
min
typ
Unit
max
0.004
%
VIN = 0.1 Vrms, f = 1 kHz, all controls flat overall,
VDD – VEE = 32 V
0.02
%
VIN = 1 Vrms, f = 1 kHz, VDD – VEE = 32 V,
All controls flat overall, Rg = 1 kΩ
–75
VIN = 1 V rms, f = 20 kHz, volume control set at –∞,
VDD – VEE = 32 V
–98
All controls flat overall, Rg = 1 kΩ, IHF–A,
VDD – VEE = 32 V
2
–60
dB
dB
10
µV
Rvol1
The 5-dB step volume block
75
kΩ
Rvol2
The 1-dB step volume block
20
kΩ
IOFF
L5dBIN, R5dBIN, LCT1, RCT1, LCT2, RCT2, L5dBOUT,
R5dBOUT, L1dBIN, R1dBIN, L1dBOUT, R1dBOUT,
LVM, RVM
–10
+10
µA
+10
µA
High-level input current
IIH
CL, DI, CE, VIN = VCC
Low-level input current
IIL
CL, DI, CE, VIN = VSS
IDD
VDD = 16 V
1
mA
ICC
VDD = 5.5 V
1
mA
Current drain
–10
µA
No. 6089-2/10
LC7536M
R5dBOUT
R1dBIN
R1dBOUT
L1dBOUT
L1dBIN
L5dBOUT
Equivalent Circuit
L5dBIN
R5dBIN
LCT1
RCT1
LCT2
RCT2
LVM
RVM
LevelSHIFT
shift
LEVEL
S
VDD
CE
VCC
Latch
LATCH
L
CONTROL
Control
CL
VSS
D
C
DI
VEE
ShiftREGISTER
register
SHIFT
A11989
Sample Application Circuit
+
LC7536M #1
L5dBIN
0.001 µF
10 µF
0.068 µF
R5dBIN
LCT1
RCT1
LCT2
RCT2
1 MΩ
+
1 µF
R5dBOUT
POWER
10 µF
+
+
–
+
+
–
+
L5dBOUT
1 MΩ
L1dBIN
10 µF
L1dBOUT
1 µF
100 kΩ
R1dBIN
R1dBOUT
LVM
AMP
SPEAKER
SPEKER
RVM
VDD
S
CE
µ-COM
DI
CL
VDD
VDD
CE
VCC
VCC
DI
VSS
CL
VEE
VEE
VCC
S
LC7536M #2
A11990
No. 6089-3/10
LC7536M
Internal Resistor Equivalent Circuit
L1dBIN
L5dBOUT
0 dB
L5dBIN
0 dB
20.570 kΩ
–5 dB
1.407 kΩ
–1 dB
11.567 kΩ
–10 dB
1.802 kΩ
–2 dB
6.505 kΩ
–15 dB
1.684 kΩ
–3 dB
3.658 kΩ
–20 dB
1.558 kΩ
–4 dB
15.868 kΩ
–25 dB
13.548 kΩ
8.923 kΩ
–30 dB
5.018 kΩ
–35 dB
2.822 kΩ
–40 dB
1.587 kΩ
–45 dB
0.892 kΩ
–50 dB
0.502 kΩ
–55 dB
0.282 kΩ
–60 dB
0.159 kΩ
–65 dB
0.089 kΩ
–70 dB
0.050 kΩ
–75 dB
0.065 kΩ
–∞
LCT1
5.30 kΩ
LCT2
L1dBOUT
–∞
The right channel is identical.
LVM
A11991
VCC
Test Circuit
• Total harmonic distortion
The right channel is identical.
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
10
11
12
13
14
15
+
+
1 MΩ
Distortion analyzer
DISTORTION
ANALYZER
VEE
+
9
10 µF
8
1 µF
7
10 µF
6
100 kΩ
10 µF
+
S.G
5
1 µF
4
0.068 µF
3
1 MΩ
2
0.001 µF
1
VDD
LC7536M
+
THDin
A11992
No. 6089-4/10
LC7536M
VCC
• Output noise voltage
The right channel is identical.
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
10
11
12
13
14
15
7
+
+
9
10 µF
100 kΩ
+
1 MΩ
1 kΩ
10 µF
+
8
VEE
6
1 µF
5
10 µF
4
1 µF
3
0.068 µF
2
0.001 µF
1
VDD
LC7536M
1 MΩ
+
NoiseMETER
meter
Noise
A11993
• Crosstalk
28
27
26
25
10 µF
+
+
24
VCC
+
1 µF
1 µF
0.068 µF
0.001 µF
29
+
10 µF
1 MΩ
+
S.G
30
100 kΩ
10 µF
1 MΩ
23
22
21
20
19
18
17
16
10
11
12
13
14
15
7
+
+
9
10 µF
100 kΩ
+
1 MΩ
1 kΩ
10 µF
+
8
VEE
6
1 µF
5
10 µF
4
1 µF
3
0.068 µF
2
0.001 µF
1
VDD
LC7536M
1 MΩ
+
VoltMETER
meter
Volt
A11994
NC
R5dBIN
RCT1
RCT2
R5dBOUT
NC
R1dBIN
R1dBOUT
RVM
VCC
NC
CE
DI
CL
NC
Pin Assignment
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
LC7536M
14
15
NC
13
VSS
12
VDD
11
S
10
NC
9
VEE
8
LVM
L1dBIN
7
L1dBOUT
6
NC
5
L5dBOUT
4
LCT2
3
LCT1
2
L5dBIN
NC
1
(Top view)
A11995
No. 6089-5/10
LC7536M
Pin Functions
Pin No.
2
Pin
Function
Equivalent circuit
VDD
L5dBIN
• 5-dB step attenuator inputs
These inputs must be driven by low-impedance circuits.
29
R5dBIN
A11996
3
LCT1
28
RCT1
4
LCT2
27
RCT2
VDD
• Loudness circuit connections
CT2
A11997
Connect high-band compensation capacitors between the
CT1 and 5dBIN pins, and connect low-band compensation
capacitors between the CT2 and VM pins.
VDD
CT1
A11998
5
26
L5dBOUT
R5dBOUT
VDD
• 5-dB step attenuator outputs
These signals should be received by loads of about 47 kΩ
to 1 MΩ.
A11999
7
VDD
L1dBIN
• 1-dB step attenuator inputs
These inputs must be driven by low-impedance circuits.
24
R1dBIN
A12000
8
L1dBOUT
23
R1dBOUT
VDD
• 1-dB step attenuator outputs
These signals should be received by loads of about 47 kΩ
to 1 MΩ.
A12001
9
22
LVM
RVM
• Common pins for the volume controls. The printed circuit
board pattern for these pins should be designed to have as
low an impedance as possible. Since LVM, RVM, and VSS
are not connected internally in the IC, they may be
connected to separate external circuits that meet their
individual specifications.
Since the capacitors between the VM pins and the power
supply when a single power supply is used become the
residual resistance components at maximum attenuation,
care is required in determining the values of these
capacitors.
5dBIN
VDD
VM
V
A12002
VDD
12
S
• Selects the address code of data during formatted.
When this pin is connected to VDD, the IC accepts data
when the address code is 9, and when connected to VCC,
it accepts data when the address code is 8.
A12003
17
CL
18
DI
19
CE
10
VEE
13
VDD
14
VSS
21
VCC
1, 6, 11,
15, 16,
20, 25,
30
NC
VDD
• Inputs for the serial data that controls the IC. The input
signals must have an amplitude of 0 to 5 V.
A12004
• Power supply connections. These pins must be connected
to the corresponding power supply. Applications must be
designed so that VCC is not applied before VDD.
• Unused pins. These pins must be left open.
No. 6089-6/10
LC7536M
Control System Timing and Data Format
To control the LC7536M, apply the stipulated data signals to the CL, DI, and CE pins. The data consists of 20 bits, of
which 4 bits are the address and 16 bits are the data.
CE
DI
A0
A1
A2
A3
D0
D1
D2
D3
D4
D5
D6
D11
D12
D13
D14
D15
CL
1 µs 1 µs 1 µs
min min min
CE
1 µs
min
CL
1 µs min
DI
1 µs ≤ TDST
A0
A1
A2
A3
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
Don’t
Don’t care
care
Left channel 1-dB step control
(Identical to the right channel)
S pin
VDD
VCC
A0 A1 A2 A3
1
0
0
0
Left channel 5-dB step control
(Identical to the right channel)
Right channel 5-dB step control
Address code
0
0
1
1
Set state
–75 dB
–70 dB
–65 dB
–60 dB
–55 dB
–50 dB
–45 dB
–40 dB
–35 dB
–30 dB
–25 dB
–20 dB
–15 dB
–10 dB
–5 dB
0 dB
D0 D1 D2 D3
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Loudness control
1: On
0: Off
Right channel 1-dB step control
Set state
–∞
–4 dB
–3 dB
–2 dB
–1 dB
0 dB
D4 D5 D6
0
0
1
0
1
0
0
1
1
0
0
1
0
0
0
1
1
1
A12005
No. 6089-7/10
LC7536M
Volume Control Step Characteristics
Volume attenuation, — dB
-20
-40
LA6462
VDD = 16 V
VEE = -16 V
VSS = 0 V
VM = 0 V
VIN = 0 dBV
f = 1 kHz
RL = 100 kΩ
1 MΩ
0
+
-
Level meter
The level meter input impedance
is 100 KΩ.
+16 V
-60
LC7536M
VSS
L/RVM
-100
-120
VDD
VEE
-80
-∞
-70
-60
-50
-40
-30
-20
-10
–16 V
0
Step, — dB
Loudness Characteristics
1 MΩ
-5
-10dB
-10
-15
-20dB
-20
-25
+
-
LA6462
+
-
1 MΩ
0
LA6462
0.068 µF
Output level, — dBV
5
VDD = 16 V, VEE = -16 V
VSS = 0 V, VM = 0 V
VIN = 0 dBV
0dB
0.001 µF
10
Level meter
+16 V
CT1
CT2
LC7536M
VDD
VEE
VSS
L/RVM
–16 V
-30dB
-30
10
2 3
5 7 100
2 3
5 7 1k
2 3
5 7 10k
2 3
5 7 100k
Frequency, f — Hz
1 MΩ
With the volume control
at the –20 dB setting
0.01
7
5
3
2
With the volume control
at the 0 dB setting
0.001
7
5
3
2
0.0001
10
2 3
5 7 100
2 3
5 7 1k
2 3
5 7 10k
2 3
+
-
+
-
1 MΩ
0.1
7
5
3
2
LA6462
LA6462
VDD = 16 V
VEE = -16 V
VSS = 0 V
VM = 0 V
VIN = -10 dBV
80 kHz L.P.F
0.001 µF
1.0
7
5
3
2
0.068 µF
Total harmonic distortion, THD — %
Total Harmonic Distortion — Frequency Characteristics (1)
Distortion meter
+16 V
CT1
CT2
LC7536M
VDD
VEE
VSS
L/RVM
–16 V
5 7100k
Frequency, f — Hz
0.1
7
5
3
2
1 MΩ
With the volume control
at the –10 dB setting
0.01
7
5
3
2
0.001
10
+
-
1 MΩ
3
2
LA6462
LA6462
VDD = 16 V
VEE = -16 V
VSS = 0 V
VM = 0 V
VIN = -10 dBV
80 kHz L.P.F
0.001 µF
1.0
7
5
0.068 µF
Total harmonic distortion, THD — %
Total Harmonic Distortion — Frequency Characteristics (2)
+
-
Distortion meter
+16 V
CT1
CT2
LC7536M
VDD
VEE
L/RVM
VSS
–16 V
With the volume control
at the 0 dB setting
2 3
5 7 100
2 3
5 7 1k
2 3
5 7 10k
2 3
5 7100k
Frequency, f — Hz
No. 6089-8/10
LC7536M
Total Harmonic Distortion — Supply Voltage Characteristics (1)
2
0.01
7
f=2
5
0kH
z
3
f=1k
2
+
-
Distortion meter
+16 V
CT1
CT2
LC7536M
18
20
22
24
26
28
30
VDD
VEE
VSS
L/RVM
Hz
0.001
16
+
-
1 MΩ
3
1 MΩ
5
LA6462
LA6462
VM = 0 V
VSS = 0 V
VIN = 0 dBV
80 kHz L.P.F
VR = 0 dB
0.001 µF
7
0.068 µF
Total harmonic distortion, THD — %
0.1
–16 V
32
Supply voltage, VDD - VEE — V
Total Harmonic Distortion — Supply Voltage Characteristics (2)
2
0.1
7
5
f=20kHz
3
f=1kHz
+
-
Distortion meter
+16 V
CT1
CT2
LC7536M
18
20
22
24
26
28
30
VDD
VEE
VSS
L/RVM
2
0.01
16
+
-
1 MΩ
3
1 MΩ
5
LA6462
LA6462
VM = 0 V
VSS = 0 V
VIN = 0 dBV
80 kHz L.P.F
VR = -20 dB
0.001 µF
7
0.068 µF
Total harmonic distortion, THD — %
1.0
–16 V
32
Supply voltage, VDD - VEE — V
1 MΩ
f=20kHz
0.01
7
5
3
2
f=1kHz
0.001
7
5
3
2
0.0001
-50 -45 -40 -35 -30 -25 -20 -15 -10 -5
0
5
+
-
+
-
1 MΩ
0.1
7
5
3
2
LA6462
LA6462
VDD = 16 V
VEE = -16 V
VM = 0 V
VSS = 0 V
80 kHz L.P.F
VR = 0 dB position
0.001 µF
1.0
7
5
3
2
0.068 µF
Total harmonic distortion, THD — %
Total Harmonic Distortion — Input Level Characteristics (1)
Distortion meter
+16 V
CT1
CT2
LC7536M
VDD
VEE
VSS
L/RVM
–16 V
10 15 20 25 30
Input level, VIN — dBV
0.1
7
5
3
2
1 MΩ
f=1kHz
f=20kHz
0.01
7
5
3
2
0.001
-50 -45 -40 -35 -30 -25 -20 -15 -10 -5
0
5
+
-
1 MΩ
1.0
7
5
3
2
LA6462
LA6462
VDD = 16 V
VEE = -16 V
VM = 0 V
VSS = 0 V
80 kHz L.P.F
VR = -20 dB position
0.001 µF
10
7
5
3
2
0.068 µF
Total harmonic distortion, THD — %
Total Harmonic Distortion — Input Level Characteristics (2)
+
-
Distortion meter
+16 V
CT1
CT2
LC7536M
VDD
VEE
L/RVM
VSS
–16 V
10 15 20 25 30
Input level, VIN — dBV
No. 6089-9/10
LC7536M
Usage Notes
• The states of the internal analog switches are undefined when power is first applied. Applications should apply muting
to the analog signal system externally until control data has been transferred to the IC.
• To prevent noise from the high-frequency digital signals on the CL, DI, and CE pin lines from entering the analog
signal system, either shielded lines should be used for these lines, or they should be covered by the ground pattern.
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer’s
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer’s products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products (including technical data, services) described or contained
herein are controlled under any of applicable local export control laws and regulations, such products must
not be exported without obtaining the export license from the authorities concerned in accordance with the
above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co., Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the “Delivery Specification”
for the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
This catalog provides information as of April, 1999. Specifications and information herein are subject to
change without notice.
PS No. 6089-10/10