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Ordering number : EN4863
CMOS LSI
LC7536R
High Breakdown Voltage Serial Control Electronic Volume Control
Overview
The LC7536R is an electronic volume control IC that implements volume and balance functions with a minimum number of external components.
Package Dimensions
unit: mm 3047A-DIP30S
[LC7536R]
Features
* The LC7536R is controlled by a 3-wire (DI, CL and CE) serial data control scheme that can be shared with other ICs. Up to two LC7536Rs can be used on the same bus by using the S (select) pin. * Eighty positions in 1 dB steps plus mute (-), maximum attenuation is over 80 dB * Input impedance (5 dB inputs): 47 k (typical) * High breakdown voltage: 16 V
SANYO: DIP30S
Specifications
Absolute Maximum Ratings at Ta = 25C, VSS = 0 V
Parameter Symbol VDD max Maximum supply voltage VEE max VCC max VI 1 Input voltage VI2 VI3 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 IN1, IN2 S Ta 75C Ratings VSS to VSS + 18 VSS - 18 to VSS VSS to VSS + 7 0 to VDD + 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
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 Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
O3194TH (OT) B8-1281 No. 4863-1/7
LC7536R Allowable Operating Ranges at Ta = 25C, VSS = 0 V
Parameter Symbol VDD Supply voltage VEE VCC Input high level voltage Input low level voltage Input high level voltage Input low level voltage Input pulse width Setup time Hold time Operating frequency Input signal amplitude Input leakage current VIH1 VIL1 VIH2 VIL2 tow tset up thold fopg VIN IIN CL, DI, CE CL, DI, CE S S CL CL, DI, CE CL, DI, CE CL IN1, IN2 CL, DI, CE, S VEE -10 Conditions min VCC + 4.5 -16 4.5 0.8 VCC VSS 0.8 x (VDD - VCC) + VCC VCC 1 1 1 500 VDD +10 5 typ max 16 0 5.5 VCC 0.2 VCC VDD 0.2 x (VDD - VCC) + VCC Unit V V V V V V V s s s kHz V A
Electrical Characteristics at Ta = 25C, VSS = 0 V
Parameter Current drain Output off leakage current Total harmonic distortion Inter-channel crosstalk Output at maximum attenuation Symbol IDD ICC IOFF THD1 THD2 CT VO IN1, IN2, VM1, VM2, CT1, CT2, OUT1, OUT2, analog switch off VIN = 1 Vrms, f = 1 kHz, VDD - VEE = 32 V, VR = max VIN = 0.1 Vrms, f = 1 kHz, VDD - VEE = 32 V, VR = max OUT1 and OUT2, with a 20 kHz 1 Vrms input to one channel f = 20 kHz, VIN = 1 Vrms -10 0.004 0.02 -75 -98 -60 Conditions min typ max 1 1 +10 Unit mA mA A % % dB dB
Pin Assignment
Top view
No. 4863-2/7
LC7536R Equivalent Circuit Block Diagram
Internal Resistor Equivalent Circuit Diagram
unit (resistance: K)
No. 4863-3/7
LC7536R Pin Functions
Pin No. 1 30 3 4 28 27 5 26 6 25 8 23 Symbol L 5dBIN Inputs to the 5 dB step attenuator. Must be driven by low impedance outputs. R 5dBIN NC NC No connection NC NC L 5dBOUT R 5dBOUT L 1dBIN Inputs to the 1 dB step attenuator. Must be driven by low impedance outputs. R 1dBIN L 1dBOUT R 1dBOUT Outputs from the 1 dB step attenuator. Outputs should be received by a load in the range 47 k to 1 M. Outputs from the 5 dB step attenuator. Outputs should be received by a load of about 1 M. Function Note
9
L VM
22
R VM
Volume control common connections. The impedance of the pattern connected to these pins should be lowered as far as possible. Since LVM, RVM and VSS are not connected internally, they should be connected externally according to their respective specifications. In particular, when a single-sided power supply is used, the capacitor connected between VM and VSS appears as the residual resistance when the volume is attenuated. Thus care is required when selecting the value for this capacitor.
12
S
Selection pin for the address code in the data format. When this pin is connected to VDD, the LC7536R will accept data when the address code is 9 and when connected to VCC, the LC7536R will accept data when the address code is 8.
17 18 19 10 13 14 21 2, 7, 11, 15, 16, 20, 24, 29
CL DI CE VEE VDD VSS VCC Power supply connections. Do not bring up the VCC voltage before the VDD voltage when powering up the LC7536R. Inputs for controlling the LC7536R from serial data. Signals should have an amplitude of 0 to 5 V.
NC
No connection
No. 4863-4/7
LC7536R Data Format
No. 4863-5/7
LC7536R Sample Application Circuit
No. 4863-6/7
LC7536R
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 and all SANYO products described or contained herein fall under strategic products (including services) controlled under the Foreign Exchange and Foreign Trade Control Law of Japan, such products must not be exported without obtaining export license from the Ministry of International Trade and Industry 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 August, 1998. Specifications and information herein are subject to change without notice. PS No. 4863-7/7

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