LC7536M

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 = 25°C, 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 ≤ 75°C 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 +75°C, VSS = 0 V Parameter Symbol VDD Supply voltage VEE VCC High-level input voltage VIH1 VIH2 VIL1 VIL2 VIN tøW 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 × (VDD – VCC) + VCC VSS VCC VEE 1 1 1 500 5 typ max 16 0 5.5 VCC VDD 0.2 VCC 0.2 × (VDD – VCC) + VCC VDD Unit V V V V V V V Vp-p µs µs µs kHz Low-level input voltage Input voltage amplitude Input pulse width Setup time Hold time Operating frequency Electrical Characteristics at Ta = 25°C, 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 kΩ VIN = 1 V rms, f = 20 kHz, volume control set at –∞, VDD – VEE = 32 V All controls flat overall, Rg = 1 kΩ, 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 µV kΩ kΩ µA µA µA 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 µF 0.001 µF L5dBIN LCT1 LCT2 R5dBIN RCT1 RCT2 0.068 µF 1 MΩ + 1 µF L5dBOUT R5dBOUT + 1 MΩ L1dBIN L1dBOUT LVM R1dBIN R1dBOUT RVM + POWER 10 µF + 1 µF 100 kΩ SPEAKER AMP SPEKER VDD + 10 µF + – – S VDD CE µ-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 kΩ 11.567 kΩ 6.505 kΩ LCT1 3.658 kΩ 15.868 kΩ 5.30 kΩ 8.923 kΩ 5.018 kΩ 2.822 kΩ 1.587 kΩ 0.892 kΩ 0.502 kΩ 0.282 kΩ 0.159 kΩ 0.089 kΩ 0.050 kΩ 0.065 kΩ 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 kΩ 1.802 kΩ 1.684 kΩ 1.558 kΩ 13.548 kΩ –1 dB –2 dB –3 dB –4 dB –∞ L5dBIN L1dBOUT LCT2 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 µF 5 1 µF 6 7 10 µF 8 1 µF 9 10 11 12 13 14 15 0.001 µF + + + 10 µF 1 MΩ S.G Distortion ANALYZER DISTORTION analyzer 10 µF + 100 kΩ 1 MΩ + 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 µF 5 1 µF 6 7 10 µF 8 1 µF 9 10 11 12 13 14 15 0.001 µF + + + 10 µF 1 kΩ 1 MΩ Noise meter Noise METER A11993 • Crosstalk 10 µF 1 MΩ 100 kΩ 1 MΩ 10 µF 22 21 VCC 20 19 + + S.G 0.001 µF 0.068 µF 1 µF 10 µF 30 29 28 27 26 25 24 1 µF 23 10 µF + 100 kΩ 1 MΩ + VDD VEE + + 1 2 3 4 0.068 µF 10 µF 1 µF 1 µF 0.001 µF + + + 10 µF 1 kΩ 1 MΩ Volt meter Volt METER A11994 R5dBOUT R1dBOUT Pin Assignment R5dBIN RCT1 RCT2 NC R1dBIN RVM VCC NC NC 10 µF + 100 kΩ 1 MΩ + 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 kΩ to 1 MΩ. 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 kΩ to 1 MΩ. 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 µs 1 µs 1 µs min min min 1 µs min 1 µs min CL 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 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 kΩ LA6462 1 MΩ + - Level meter The level meter input impedance is 100 KΩ. +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 µF LA6462 1 MΩ 1 MΩ + - 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 MΩ 0.001 µF 0.1 7 5 3 2 0.01 7 5 3 2 0.001 7 5 3 2 1 MΩ 1.0 7 5 3 2 0.068 µF 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 MΩ 3 2 0.1 7 5 3 2 0.01 7 5 3 2 0.001 µF 1 MΩ 1.0 7 5 0.068 µF 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 µF 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 MΩ 7 5 3 2 0.001 µF VM = 0 V VSS = 0 V VIN = 0 dBV 80 kHz L.P.F VR = 0 dB LA6462 1 MΩ + - 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 µF Total harmonic distortion, THD — % 1 MΩ 7 5 3 2 0.001 µF VM = 0 V VSS = 0 V VIN = 0 dBV 80 kHz L.P.F VR = -20 dB LA6462 1 MΩ + - 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 MΩ 0.001 µF 0.1 7 5 3 2 0.01 7 5 3 2 1 MΩ 1.0 7 5 3 2 0.068 µF 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 MΩ 0.001 µF 1.0 7 5 3 2 0.1 7 5 3 2 0.01 7 5 3 2 1 MΩ 10 7 5 3 2 0.068 µF 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 µF 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