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| Ordering number : ENN6501 LA4627 Monolithic Linear IC LA4627 Two-Channel Audio Frequency Power Amplifier Overview The LA4627 is a 2-channel power amplifier developed for use in radio/cassette player products. The LA4627 reduces the number of required external components by 50% over earlier products (BS/NF capacitors and oscillation prevention RC components) and thus can contribute significantly to space saving in end products. Package Dimensions unit : mm 3022B-DIP12F [LA4627] 19.0 12 7 Features * Provided in the DIP12F. * PO :2.0 W ! 2 (VCC = 9 V, RL = 4 ) 2.5 W ! 2 (VCC = 9 V, RL = 3 ) * Standby function built in (supports direct microcontroller control). * Built-in thermal protection circuit. (0.61) 1 5.12 3.6 6 1.25 4.26max (3.46) 7.62 6.45 0.51min 0.5 2.54 3.81 1.3 SANYO : DIP12F(300mil) Specifications Maximum Ratings at Ta = 25C Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Conditions Rg = 0 When mounted on the Sanyo-recommended PCB Ratings 22 4.0 -25 to +75 --55 to +150 Unit V W C C Operating Conditions at Ta = 25C Parameter Recommended supply voltage Recommended load resistance Operating voltage range Recommended operating load resistance Symbol VCC RL VCC op RL op Conditions Ratings 9 3 5.0 to 20 2.7 to 8.0 Unit V V Under conditions such that the maximum ratings are not exceeded. 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 42000 RM (IM) No.6501-1/6 3.5 0.4 LA4627 Operating Characteristics at Ta = 25C, VCC = 9 V, RL = 3 , f = 1 kHz, Rg = 600 Parameter Quiescent current Voltage gain Total harmonic distortion Output power Output noise voltage Ripple rejection ratio Channel separation Standby current Input resistance Standby pin voltage Symbol ICCO VG THD PO(1) PO(2) VNO SVRR CHsep IST Ri VST Conditions Rg = 0 VO = 0 dBm PO = 0.33 W(VO = 1.0 V) THD = 10 % THD = 10 %, RL = 4 Rg = 0, DIN AUDIO Rg = 0, fR = 100 Hz, Vr = 0 dBm, DIN AUDIO Rg = 0, VO = 0 dBm, DIN AUDIO Rg = 0 The pin 1 voltage such that the amplifier is on min 17 43 2.0 Ratings typ 30 45 0.1 2.5 2.0 0.15 52 60 1.0 30 5.0 max 70 47 0.8 Unit mA dB % W W mVrms dB dB A k V 0.5 45 50 20 1.5 10 40 7 Pd max -- Ta 6.4 Allowable power dissipation, Pd max -- W Copper heat sink (Fin 1) Steel heat sink (Fin 1) Steel heat sink (Fin 2) 25.0 10.7 8.7 6 5.7 5 4.9 4 53.0 Mounted on the recommended printed circuit board. 4.0 25.0 10.7 12.0 8.7 3 2 1.9 Independent IC 8.0 8.0 1 0 --20 3.6 0.5 3.6 0.5 0 20 40 60 80 ILA00055 Ambient temperature, Ta -- C Fin 1 Fin 2 ILA00056 Application Circuit + 1000 F RL 12 VCC + 4.7 F + 100 F output 1 POWER GND 11 OUT1 10 Fin + 1 F + 8 DC (R. F) 7 IN1 input 1 9 P. P VCC 1000 F LA4627 PRE GND 3 Fin 4 5 STBY *Rx 4.7 k 1 OUT2 2 IN2 6 + 1 F STBY +5 V + output 2 RL input 2 Top view 1000 F * Pins 3, 5, 10 must be left open. ** Rx: If the STBY pin (pin 1) is used, observe the following: Insert the resistor Rx in series to limit the inflowing current. (The amplifier will be on when a voltage is applied to pin 1.) ILA00057 No.6501-2/6 LA4627 Block Diagram STBY 1 VCC 12 Standby SW ch1 Input 7 ch1 input amplifier Rf1 RNf1 Output amplifier 11 ch1 Output PRE GND 4 RNf2 REF amplifier Rf2 TSD protector Fin POWER GND ch2 Input 6 ch2 input amplifier Output amplifier 2 ch2 Output Pop noise prevention block Ripple filter 9 P.P 8 Filter ILA00059 Pin Functions 1. Standby switch function (pin 1) Rx Applied standby voltage Vx + STBY 1 2 k 2 k The inflowing current at an applied voltage of 1.5 V, i.e. the point when the amplifier turns on, is approximately 750 A. ILA00058 STBY pin applied voltage: 5 V To hold the pin 1 inflow current to about 750 A insert a resistor (Rx) of 4.7 k STBY pin applied voltage: 12 V To hold the pin 1 inflow current to about 750 A insert a resistor (Rx) of 14 k (12 k). STBY pin applied voltage: Other value (Vx) To hold the pin 1 inflow current to about 750 A insert a resistor (Rx) of (Vx - 1.5 V)/750 A. * If a microcontroller output signal is applied directly, insert a resistor in series and adjust the current to a level optimal for the drive capability of the microcontroller. 2. Input pins (pins 6 and 7) The input pin voltage is about 2VBE (1.4 V). The input pin impedance is about 30 k. * Although the recommended value for the input capacitor is 0.22 F, the starting time can be modified by changing the value of this capacitor. (The time from the point a voltage is applied to the standby pin to the point sound is emitted.) Input capacitor Starting time (ts) 1.0 F 0.2 s 2.2 F 0.3 s 3.3 F 0.5 s 4.7 F 0.65 s 10 F 1.5 s No.6501-3/6 LA4627 3. FILTER (decoupling) pin (pin 8) The pin voltage is about 1/2 VCC. The recommended value for the filter capacitor is 100 F. The pulse noise that occurs when the standby pin is set low (power off) will be degraded if a value under 100 F is used. AC voltage (100 mV) AC voltage (200 mV) Output DC voltage Output DC voltage ILA00061 ILA00062 Filter capacitor = 100 F Filter capacitor = 47 F VCC 4. P.P (pulse noise) pin (pin 9) Pin 9 pin voltage VCC - VCE (about 0.3 V) - 5.6 V + 5.6 V 2 k * The recommended value for the P.P capacitor is 4.7 F. The pulse noise that occurs when the standby pin is set low (power off) will be degraded if a value under 2.2 F is used. Furthermore, if a value over 10 F is used, the signal may not be cut off and sound may remain audible when the standby pin is set low (power off). 5 k 9 5 k Zener voltage = 5.6 V To the input amplifier block/bias system ILA00063 5. MUTE (Muting) The output signal can be controlled by shifting the pin 8 (FILTER) level towards ground with a 300 to 500 resistor. However, note that the degree of suppression is reduced if a value of 750 or more is used. Output AC voltage Output DC voltage Mute ON Mute OFF ILA00064 No.6501-4/6 LA4627 10 VCC -- PO f = 1 kHz THD = 10 % Quiescent current, ICCO -- mA 140 VCC -- ICCO Rg = 0 RL = 3 120 8 Output power, PO -- W 6 RL 3 = 4 100 80 4 RL = RL 2 =8 60 40 20 0 0 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 12 14 16 18 20 22 24 Supply voltage, VCC -- V 10 7 5 3 2 1.0 7 5 3 2 0.1 7 5 3 2 0.01 10 23 5 7 100 23 5 7 1k 23 5 7 10k ILA00065 100 7 5 3 2 10 7 5 3 2 1.0 7 5 3 2 0.1 7 5 3 2 0.01 0.1 THD -- f Supply voltage, VCC -- V ILA00066 THD -- PO Total harmonic distortion, THD -- % Total harmonic distortion, THD -- % VCC = 9 V RL = 3 VO = 1 Vrms VCC = 9 V RL = 3 f = 10 kHz 100 Hz 2 3 5 7 23 Frequency, f -- Hz 0 --10 --20 --30 --40 --50 --60 --70 --80 10 5 7100k ILA00067 1 kHz 2 3 1.0 5 CHsep -- f Ripple rejection ratio, SVRR -- dB VCC = 9 V RL = 3 VO = 0 dBm Rg = 10 k Output power, PO -- W 0 7 10 ILA00068 SVRR -- fR Channel separation, CHsep -- dB --10 --20 VCC = 9 V RL = 3 Rg = 0 Vr = 150 mVrms DIN AUDIO --30 --40 1 CH2 2 CH1 --50 --60 --70 10 23 5 7 100 23 5 7 1k 23 5 7 10k 23 Frequency, f -- Hz 2 57 100k ILA00069 2 3 5 7 100 2 3 5 7 1k 2 3 f -- Response Output noise voltage, VNO -- mVrms VCC = 9 V RL = 3 VO = 0 dBm VG = 45.5 dB Ripple frequency, fR -- Hz 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 1k 2 3 5 7 2 3 5 5 7 10k ILA00070 VNO -- Rg 0 VCC = 9 V RL = 3 DIN AUDIO Response -- dB --2 --4 --6 --8 --10 10 23 5 7100 23 5 7 1k 23 5 710k 23 Frequency, f -- Hz 5 7100k ILA00071 Signal source resistor, Rg -- 10k 7 100k ILA00072 No.6501-5/6 LA4627 5 Pd -- PO f = 1 kHz Pd = VCC ! ICC -- 2 ! PO Power dissipation, Pd -- W 4 3 2 LA 4 VC 627 C =9 RL V/ =3 1 LA42 27 VC 9V C= / RL =4 0 0.1 2 3 5 7 1.0 2 3 5 Output power, PO -- W 7 10 ILA00073 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, 2000. Specifications and information herein are subject to change without notice. PS No.6501-6/6 |
Price & Availability of LA4627
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