EN2619B LA3335M MFP10S O3096HA /40594HK/O307TA

Monolithic Linear IC LA3335M PLL FM Multiplex Demodulator for 3 V Headphone Stereos and Radio-cassette Recorders Overview Package

Ordering number: EN2619B EN2619B Monolithic Linear IC LA3335M LA3335M PLL FM Multiplex Demodulator for 3 V Headphone Stereos and Radio-cassette Recorders Overview Package Dimensions The LA3335M LA3335M is PLL FM stereo multiplex demodulator IC designed for use in headphone stereos, etc. which operate from a low supply voltage. unit : mm 3086A-MFP10S Applications 10 . FM Multiplex IC for 3 V headphones, radio-cassette 0.625 [LA3335M LA3335M] 6 4.4 5.15 6.4 recorders Functions 5 1 1.8 max . PLL FM stereo decoder, VCO stop, stereo indicator 5.1 1.5 Features 0.15 0.1 . Wide operating voltage range : 1.8 to 6 V . Low current dissipation : 1.6 mA . Minimum number of external parts required 0.35 1.0 0.55 SANYO : MFP10S MFP10S Specifications Maximum Ratings at Ta = 25 °C Parameter Symbol Maximum supply voltage Allowable power dissipation Pd max Ta % 70 °C Parameter Symbol V Recommended supply voltage VCC 10 IL max max Unit 8 VCC Lamp drive current Conditions Operating Conditions at Ta = 25 °C Ratings mA Operating voltage range 50 mW Input signal voltage Operating temperature Topr 20 to +70 Tstg 40 to +125 VCC op VIN Ratings Unit 3 V 1.8 to 6 V 150 mV °C Storage temperature Conditions °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 Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN O3096HA O3096HA(II)/40594HK/O307TA /40594HK/O307TA,TS No.2619-1/6 LA3335M LA3335M Operating Characteristics at Ta = 25 °C, VCC = 3 V, input 150 mV, L + R = 90%, pilot = 10%, f = 1 kHz, See specified Test Circuit. Parameter Quiescent current Input resistance Output resistance Channel separation Symbol ICCO Ri Ro CHsep Total harmonic distortion THD Output voltage Channel balance Lamp lighting level Lamp hysteresis Capture range Allowable input level Signal to noise ratio VO CB VL hy CR VIN max S/N Conditions min No input 35 5.3 30 Monaural Stereo main Monaural Monaural Pilot 90 1.5 Pilot 15 mV Monaural, THD = 5% Monaural typ 1.6 50 7.5 45 0.6 0.3 130 0 3.5 3.5 ±3 350 82 max 2.5 65 9.7 1.5 1.5 180 1.5 6 Unit mA k k dB % % mV dB mV dB % mV dB Equivalent Circuit Block Diagram and Test Circuit Decoder Sync detection Lamp trigger Stereo Switch Phase comparison S1: VCO STOP when ON AMP: Bandwidth of 100 kHz or more, THD = 0.01% or less, input impedance of 330 k or more * Styrol capacitor No.2619-2/6 LA3335M LA3335M External Parts Part Name Symbol Kind Value Remarks R1 Carbon resistor 27 k VCO time constant R2 Carbon resistor 560 Limiting resistor VR1 Carbon resistor 10 k VCO OSC frequency adjust C1 Electrolytic capacitor 2.2 µF DC blocking C2 Electrolytic capacitor 0.1 µF C3 Polystyrol capacitor 1000 pF C4 Electrolytic capacitor 1 µF Pilot detection C5 Ceramic capacitor 6800 pF De-emphasis C6 Ceramic capacitor 6800 pF De-emphasis C7 Electrolytic capacitor Resistor Semifixed resistor Capacitor Loop filter VCO time constant Power supply ripple filter Typical Voltage and Name of Each Pin Pin No. Voltage Name 1 1.2 V 2 VCC0.7 V PLL loop filter 3 VCC Power supply 4 - VCO 5 - NC 6 0V GND 7 - Stereo indicator 8 VCC0.7 V 9 1.3 V Decoder output (low) 10 1.3 V Remarks Input Decoder output (high) VCC0.2 V 0.65 VCC Open collector Pilot sync detection filter Proper cares in using IC 1. 2. VCO stop method Short pin 7 and pin 3 (VCC pin) to stop the VCO. (Note) The maximum voltage to be applied to pin 7 must not exceed the voltage on pin 3. Free-running frequency check method : Use either of the following two methods. a) Connect pin 4 to a frequency counter through the high input impedance amplifier. Figure 1 No.2619-3/6 LA3335M LA3335M b) Connect the connection point of the semifixed resistor connected to pin 4 and the fixed resistor to a frequency counter through the RX of 240 k. Fig. 2 shows how the error changes as the RX value is decreased. Error, f % F RX RX Figure 2 Separation setting mothod The LA3335M LA3335M is so designed that the sub-signal gain is approximately 1.25 times as high as the main signal gain. The separation can be set by attenuating the sub-signal of the FM detection output. (See Figure 3) Ro 6 Output impedance Figure 3 The value of capacitor Co depends on the attenuation of the sub-signal of the FM detection output and the IF IC output impedance Ro. Fig. 4 shows the value of separation setting capacitor Co when Ro is set to 3 k. For example, when the attenuation of sub-signal of the IF IC output is 0.9 time that of the main signal, it is seen from Figure 4 that the value of Co is approximately 500 pF. Co Attenuation Capacitor value, Co pF 3. Vs = Sub-signal peak value Vm = main signal peak value Separation : 35 to 40 dB, set to double hump response. Input sub-signal attenuation, m dB Figure 4 No.2619-4/6 LA3335M LA3335M THD f Total harmonic distortion, THD % Total harmonic distortion, THD % THD VCC Frequency, f Hz Supply voltage, VCC V CHsep f Channel separation, CHsep dB Total harmonic distortion, THD % THD VIN Input voltage, VIN mV Sep VCC Free-running frequency: VCC = 3 V Frequency, f Hz VO VCC Output level, VO mV Separation, Sep dB Free-running frequency: VCC = 3 V Free funning frequency: VCC = 3 V Supply voltage, VCC V Capture range Free-running frequency : VCC = 3 V ON level OFF level Supply voltage, VCC V Pilot level mV Lamp ON/OFF Level mV Supply voltage, VCC V Lamp ON/OFF level VCC Capture range, CzR % No.2619-5/6 LA3335M LA3335M ICCO VCC fF VCC No input Quiescent current, ICCO mA Free-running frequency, fF kHz No input Supply voltage, VCC V Supply voltage, VCC V 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 October, 1996. Specifications and information herein are subject to change without notice. PS No.2619-6/6