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Ordering number : EN6089
CMOS IC
LC7536M
Serially Controlled Electronic Volume Control that Handles High Voltages
Overview
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.
Package Dimensions
unit: mm 3216A-MFP30S
[LC7536M]
30 16
Functions
* 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.
10.5 7.9 9.2 0.65 0.15
1
15.3
15
0.35
1.0
0.65
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
0.1
2.15
SANYO: MFP30S
2.5max
LC7536M
Specifications
Absolute Maximum Ratings at Ta = 25C, VSS = 0 V
Parameter Symbol VDD max Maximum supply voltage VEE max VCC max VIN max1 Maximum input voltage VIN max2 VIN max3 Allowable power dissipation Operating temperature Storage temperature Pd max Topr Tstg Conditions VEE VSS < VCC < VDD VEE VSS < VCC < VDD VEE VSS < VCC < VDD CL, DI, CE L5dBIN, R5dBIN, L1dBIN, R1dBIN S Ta 75C Ratings VSS to VSS + 18 VSS - 18 to VSS VSS to VSS + 7 0 to VCC + 0.3 VEE - 0.3 to VDD + 0.3 VCC - 0.3 to VDD + 0.3 250 -30 to +75 -40 to +125 Unit V V V V V V mW C C
Allowable Operating Ranges at Ta = -30 to +75C, VSS = 0 V
Parameter Symbol VDD Supply voltage VEE VCC High-level input voltage VIH1 VIH2 VIL1 VIL2 VIN toW tsetup thold fopg VDD VEE VCC CL, DI, CE S CL, DI, CE S L5dBIN, R5dBIN, L1dBIN, R1dBIN CL CL, DI, CE CL, DI, CE CL Conditions Ratings min VCC + 4.5 -16 4.5 0.8 VCC 0.8 x (VDD - VCC) + VCC VSS VCC VEE 1 1 1 500 5 typ max 16 0 5.5 VCC VDD 0.2 VCC 0.2 x (VDD - VCC) + VCC VDD Unit V V V V V V V Vp-p s s s kHz
Low-level input voltage Input voltage amplitude Input pulse width Setup time Hold time Operating frequency
Electrical Characteristics at Ta = 25C, VSS = 0 V
Parameter Symbol THD1 Total harmonic distortion THD2 Crosstalk Output at maximum attenuation Output noise voltage Total resistance CT Vo min VN Rvol1 Rvol2 IOFF IIH IIL IDD ICC Conditions VIN = 1 Vrms, f = 1 kHz, all controls flat overall, VDD - VEE = 32 V VIN = 0.1 Vrms, f = 1 kHz, all controls flat overall, VDD - VEE = 32 V VIN = 1 Vrms, f = 1 kHz, VDD - VEE = 32 V, All controls flat overall, Rg = 1 k VIN = 1 V rms, f = 20 kHz, volume control set at -, VDD - VEE = 32 V All controls flat overall, Rg = 1 k, IHF-A, VDD - VEE = 32 V The 5-dB step volume block The 1-dB step volume block L5dBIN, R5dBIN, LCT1, RCT1, LCT2, RCT2, L5dBOUT, R5dBOUT, L1dBIN, R1dBIN, L1dBOUT, R1dBOUT, LVM, RVM CL, DI, CE, VIN = VCC CL, DI, CE, VIN = VSS VDD = 16 V VDD = 5.5 V -10 1 1 -10 Ratings min typ 0.004 0.02 -75 -98 2 75 20 +10 +10 10 -60 max Unit % % dB dB V k k A A A mA mA
Output off leakage current High-level input current Low-level input current Current drain
No. 6089-2/10
LC7536M Equivalent Circuit
R1dBOUT R5dBOUT L5dBOUT L1dBOUT R1dBIN L1dBIN
L5dBIN LCT1
R5dBIN RCT1
LCT2
RCT2
LVM
RVM
S CE CONTROL Control CL DI D C L
Level shift LEVEL SHIFT
VDD VCC
Latch LATCH
VSS
Shift register SHIFT REGISTER
VEE
A11989
Sample Application Circuit
LC7536M #1
+
10 F
0.001 F
L5dBIN LCT1 LCT2
R5dBIN RCT1 RCT2
0.068 F
1 M 1 F L5dBOUT 1 M L1dBIN L1dBOUT LVM R1dBIN R1dBOUT RVM R5dBOUT
+
POWER
10 F
+
1 F 100 k
SPEAKER AMP SPEKER
VDD
+
10 F
+
-
-
+
+
S VDD CE -COM DI CL CE DI CL VCC VSS VEE VEE VDD VCC
VCC S
LC7536M #2
A11990
No. 6089-3/10
LC7536M Internal Resistor Equivalent Circuit
L5dBOUT 0 dB 20.570 k 11.567 k 6.505 k 3.658 k LCT1 15.868 k 8.923 k 5.30 k 5.018 k 2.822 k LCT2 1.587 k 0.892 k 0.502 k 0.282 k 0.159 k 0.089 k 0.050 k 0.065 k LVM -5 dB -10 dB -15 dB -20 dB -25 dB -30 dB -35 dB -40 dB -45 dB -50 dB -55 dB -60 dB -65 dB -70 dB -75 dB -
L1dBIN 0 dB 1.407 k 1.802 k 1.684 k 1.558 k 13.548 k -1 dB -2 dB -3 dB -4 dB -
L5dBIN
L1dBOUT
The right channel is identical.
A11991
Test Circuit * Total harmonic distortion
The right channel is identical.
30 29 28 27 26 25 24 23 22 21
VCC 20 19
18
17
16
LC7536M
1
2
3
4 0.068 F
5 1 F
6
7 10 F
8 1 F
9
10
11
12
13
14
15
0.001 F
+
+
+
10 F
1 M
S.G
Distortion ANALYZER DISTORTION analyzer
10 F
+
100 k
1 M
+
THDin
A11992
VDD
VEE
No. 6089-4/10
LC7536M * Output noise voltage
The right channel is identical.
30 29 28 27 26 25 24 23 22 21 VCC 20 19
18
17
16
LC7536M
1
2
3
4 0.068 F
5 1 F
6
7 10 F
8 1 F
9
10
11
12
13
14
15
0.001 F
+
+
+
10 F
1 k
1 M
Noise meter Noise METER
A11993
* Crosstalk
10 F 1 M 100 k 1 M 10 F 23 22 21 VCC 20 19
+ +
S.G
0.001 F 0.068 F
1 F
10 F
30
29
28
27
26
25
24
1 F
10 F
+
100 k
1 M
+
VDD
VEE
+ +
1
2
3
4 0.068 F
10 F
1 F
1 F
0.001 F
+
+
+
10 F
1 k
1 M
Volt meter Volt METER
A11994
R5dBOUT
R1dBOUT
Pin Assignment
R5dBIN RCT1 RCT2 NC
R1dBIN
RVM
VCC
NC
NC
10 F
+
100 k
1 M
+
VDD
VEE
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
LC7536M
1 NC
2 L5dBIN
3 LCT1
4 LCT2
5 L5dBOUT
6 NC
7 L1dBIN
8 L1dBOUT
9 LVM
10 VEE
11 NC
12 S
13 VDD
14 VSS
15 NC
NC
CE
CL
DI
+
18
17
16
LC7536M
5
6
7
8
9
10
11
12
13
14
15
(Top view)
A11995
No. 6089-5/10
LC7536M Pin Functions
Pin No. 2 Pin L5dBIN * 5-dB step attenuator inputs These inputs must be driven by low-impedance circuits. 29 R5dBIN
A11996
Function
Equivalent circuit
VDD
3
LCT1
VDD
28
RCT1
* Loudness circuit connections Connect high-band compensation capacitors between the CT1 and 5dBIN pins, and connect low-band compensation capacitors between the CT2 and VM pins.
CT2 VDD
A11997
4
LCT2
27
RCT2
CT1
A11998
5
L5dBOUT
VDD
* 5-dB step attenuator outputs These signals should be received by loads of about 47 k to 1 M.
A11999
26
R5dBOUT
7
L1dBIN * 1-dB step attenuator inputs These inputs must be driven by low-impedance circuits.
VDD
24
R1dBIN
A12000
8
L1dBOUT
VDD
* 1-dB step attenuator outputs These signals should be received by loads of about 47 k to 1 M.
A12001
23
R1dBOUT
9
LVM
22
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 * Inputs for the serial data that controls the IC. The input signals must have an amplitude of 0 to 5 V.
VDD
18
DI
19 10 13 14 21 1, 6, 11, 15, 16, 20, 25, 30
CE VEE VDD VSS VCC * 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.
A12004
NC
* 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
CE
1 s 1 s 1 s min min min 1 s min 1 s min
CL
DI 1 s TDST
A0
A1
A2
A3
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
Don't care Don't care
Left channel 1-dB step control (Identical to the right channel)
Address code S pin
Right channel 5-dB step control Set state
Left channel 5-dB step control (Identical to the right channel) Loudness control 1: On 0: Off
A0 A1 A2 A3 1 0 0 0 0 0 1 1
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
VDD VCC
-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
Right channel 1-dB step control Set state
D4 D5 D6 0 0 1 0 1 0 0 1 1 0 0 1 0 0 0 1 1 1
- -4 dB -3 dB -2 dB -1 dB 0 dB
A12005
No. 6089-7/10
LC7536M
Volume Control Step Characteristics
0
-20
Volume attenuation, -- dB
-40
VDD = 16 V VEE = -16 V VSS = 0 V VM = 0 V VIN = 0 dBV f = 1 kHz RL = 100 k
LA6462 1 M
+ -
Level meter
The level meter input impedance is 100 K.
+16 V LC7536M VDD VEE L/RVM VSS -16 V
-60
-80
-100
-120
-
-70
-60
-50
-40
-30
-20
-10
0
Step, -- dB
Loudness Characteristics
10 5 0 -5
VDD = 16 V, VEE = -16 V VSS = 0 V, VM = 0 V VIN = 0 dBV 0dB 0.001 F
LA6462 1 M 1 M
+ -
LA6462
+ -
Output level, -- dBV
Level meter
-10dB
-10 -15
CT1 CT2 LC7536M L/RVM VSS
+16 V VDD VEE -16 V
-20dB
-20 -25 -30 10
-30dB
23 5 7 100 23 5 7 1k 23 5 7 10k 23 5 7 100k
Frequency, f -- Hz
Total Harmonic Distortion -- Frequency Characteristics (1)
Total harmonic distortion, THD -- %
1 M
0.001 F
0.1 7 5 3 2 0.01 7 5 3 2 0.001 7 5 3 2
1 M
1.0 7 5 3 2
0.068 F
VDD = 16 V VEE = -16 V VSS = 0 V VM = 0 V VIN = -10 dBV 80 kHz L.P.F
With the volume control at the -20 dB setting With the volume control at the 0 dB setting
LA6462
+ -
LA6462
+ -
Distortion meter
CT1 CT2 LC7536M L/RVM VSS
+16 V VDD VEE -16 V
0.0001 10
23
5 7 100
23
5 7 1k
23
5 7 10k
23
57 100k
Frequency, f -- Hz
Total Harmonic Distortion -- Frequency Characteristics (2)
Total harmonic distortion, THD -- %
1 M
3 2 0.1 7 5 3 2 0.01 7 5 3 2
0.001 F
1 M
1.0 7 5
0.068 F
VDD = 16 V VEE = -16 V VSS = 0 V VM = 0 V VIN = -10 dBV 80 kHz L.P.F
LA6462
+ -
LA6462
+ -
Distortion meter
CT1 CT2 LC7536M L/RVM VSS
+16 V VDD VEE -16 V
With the volume control at the 0 dB setting
23 5 7 100 23 5 7 1k 23 5 7 10k 23 5 7100k
0.001 10
Frequency, f -- Hz
0.068 F
With the volume control at the -10 dB setting
No. 6089-8/10
LC7536M
Total Harmonic Distortion -- Supply Voltage Characteristics (1)
0.1
Total harmonic distortion, THD -- %
1 M
7 5 3 2
0.001 F
VM = 0 V VSS = 0 V VIN = 0 dBV 80 kHz L.P.F VR = 0 dB
LA6462 1 M
+ -
LA6462
+ -
Distortion meter
0.01 7 5 3 2
CT1 CT2 LC7536M L/RVM VSS
+16 V VDD VEE -16 V
f=2
0kH
z
f=1k
18 20
Hz
22 24 26 28 30 32
0.001 16
Supply voltage, VDD - VEE -- V
Total Harmonic Distortion -- Supply Voltage Characteristics (2)
1.0
0.068 F
Total harmonic distortion, THD -- %
1 M
7 5 3 2
0.001 F
VM = 0 V VSS = 0 V VIN = 0 dBV 80 kHz L.P.F VR = -20 dB
LA6462 1 M
+ -
LA6462
+ -
Distortion meter
0.1 7 5 3 2
CT1 CT2 LC7536M L/RVM VSS
+16 V VDD VEE -16 V
f=20kHz
f=1kHz
0.01 16
18
20
22
24
26
28
30
32
Supply voltage, VDD - VEE -- V
Total Harmonic Distortion -- Input Level Characteristics (1)
Total harmonic distortion, THD -- %
1 M
0.001 F
0.1 7 5 3 2 0.01 7 5 3 2
1 M
1.0 7 5 3 2
0.068 F
VDD = 16 V VEE = -16 V VM = 0 V VSS = 0 V 80 kHz L.P.F VR = 0 dB position
LA6462
+ -
LA6462
+ -
Distortion meter
f=20kHz
f=1kHz
CT1 CT2 LC7536M L/RVM VSS
+16 V VDD VEE -16 V
0.001 7 5 3 2 0 5 10 15 20 25 30
0.0001 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5
Input level, VIN -- dBV
Total Harmonic Distortion -- Input Level Characteristics (2)
Total harmonic distortion, THD -- %
1 M
0.001 F
1.0 7 5 3 2 0.1 7 5 3 2 0.01 7 5 3 2
1 M
10 7 5 3 2
0.068 F
VDD = 16 V VEE = -16 V VM = 0 V VSS = 0 V 80 kHz L.P.F VR = -20 dB position
LA6462
+ -
LA6462
+ -
Distortion meter
f=1kHz
CT1 CT2 LC7536M L/RVM VSS
+16 V VDD VEE -16 V
0.001 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5
0
5
10 15 20 25 30
Input level, VIN -- dBV
0.068 F
f=20kHz
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

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