specifications of any and all sanyo semiconductor co.,l td. 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 ' sproductsor equipment. any and all sanyo semiconductor co.,ltd. products described or contained herein are, with regard to "standard application", intended for the use as general el ectronics equipment (home appliances, av equipment, communication device, office equipment, industrial equ ipment etc.). the products mentioned herein shall not be intended for use for any "special application" (medica l equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, t ransportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of re liability and can directly threaten human lives in case of failure or malfunction of the product or may cause har m to human bodies, nor shall they grant any guarantee thereof. if you should intend to use our products for app lications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. if there is n o consultation or inquiry before the intended use, our customer shall be solely responsible for the use. 41608 ms jk/32896ha(ii)/d 0192ts/4162ts no .4022-1/8 la4525 overview the la4525 requires only a small number of external components to drive either two 4 ? speakers or one 8 ? speaker. the output power is typically 0.65w when driving two 4 ? speakers. features ? two-channel (dual) or single-channel (btl) operation ? requires only a few external components ? 0.65w (typ) output power into two 4 ? speakers ? wide power supply range : 3 to 15v ? 8-pin dip (no heat sink needed) specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit maximum supply voltage v cc max rg = 0 15 v allowable power dissipation pd max note 1.5 w operating temperature topr ? 25 to + 75 c storage temperature tstg ? 40 to + 150 c note : mounted on a 50 50 1.6mm 3 heat dissipating board recommended operating conditions at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc 6 v load resistance range r l 4 ? supply voltage range v cc op not in excess of package pd 3 to 15 v monolithic linear ic for radio cassette recorders dual af power amplifier orderin g numbe r : en4022d
la4525 no. 4022-2/8 electrical characteristics at v cc = 6v, ta = 25 c, r l = 4 ? , f = 1khz, rg = 600 ? , dual operation unless otherwise noted parameter symbol condition min typ max unit quiescent supply current i cco rg = 0 ? 10 15 30 ma p o 1 thd = 10% 0.45 0.65 w output power p o 2 v cc = 9v, r l = 8 ? , thd = 10% 1.0 w voltage gain vg v o = 0dbm 38 40 42 db total harmonic distortion thd p o = 0.1w 0.2 0.7 % output noise voltage v no rg = 0 ? , din audio filter 100 400 v supply voltage ripple rejection svrr rg = 0 ? , f r = 100hz, v r = 0dbm 35 43 db channel separation ch sep v o = 0dbm, r g = 0 ? 45 55 db input resistance ri 70 100 130 k ? package dimensions unit : mm (typ) 3001d sanyo : dip8(300mil) 9.14 14 85 1.4 1.0 6.4 7.62 0.25 (3.0) 3.9max 0.51min 3.2 (0.76) 2.54 0.5 pd max -- ta -20 0 20 40 60 80 160 0 0.4 2.0 jk780601 0.8 1.2 1.6 120 140 100 1.5 1.25 allowable power dissipation, pd max -- w ambient temperature, ta -- c mounted on sanyo recommended board independent ic
la4525 no. 4022-3/8 block diagram dual operation example sample printed circuit pattern
la4525 no. 4022-4/8 pin description number name description 1 out1 channel 1 output 2 v cc supply voltage 3 out2 channel 2 output 4 power gnd power amplifier ground 5 btl in bridge test load input 6 in2 channel 2 input 7 in1 channel 1 input 8 pre gnd preamplifier ground external components comparison external components existing sanyo ics la4525 output capacitors c c input capacitors c c bootstrap capacitors c feedback capacitors c filter capacitors c oscillation damping mylars c dual-mode operation total 11 4 pin voltages pin number pin name pin voltage 1 out1 2.8v 2 v cc 6v 3 out2 2.8v 4 power gnd 0v 5 btl in 65mv 6 in2 1.4v 7 in1 1.4v 8 pre gnd 0v
la4525 no. 4022-5/8 3 5 7 0.1 2 3 5 7 1.0 2 3 jk452508 357 100 23 57 1k 23 57 10k 2 thd -- f frequency, f -- hz total harmonic distortion, thd -- % v cc = 6v r l = 4 ? p o = 0.1w (v o = 0.632v) rg = 600 ? 2 0 600 0 1.2 500 1.0 400 0.8 300 0.6 200 0.4 100 0.2 jk452509 0.01 23 57 0.1 23 57 1.0 d i cc,pd -- p o output power, p o -- w current drain, i cc -- ma power dissipation, pd -- w v cc = 6v r l = 4 ? rg = 600 ? f = 1khz i cc pd 0 700 jk452510 100 200 300 400 500 600 2 0.01 23 57 0.1 23 57 1.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 i cc, pd -- p o output power, p o -- w current drain, i cc -- ma i cc pd power dissipation, pd -- w v cc = 9v r l = 8 ? rg = 600 ? f = 1khz 10 0 1.2 jk452511 0 2 4 6 8 0.2 0.4 0.6 0.8 1.0 p o -- v cc supply voltage, v cc -- v output power, p o -- w r l = 4 ? 8 ? thd = 10% f = 1khz rg = 600 ? 100k -10 2 jk452512 23 57 100 23 57 1k 23 57 10k 23 57 -8 -6 -4 -2 0 f response frequency, f -- hz frequency response -- db dual v cc = 6v r l = 4 ? v o = 0dbm rg = 600 ? c out = 1000 f vg = 40db/1khz f h = 140khz 470 f 220 f 20 30 40 50 60 70 jk452513 57 100 23 57 1k 23 57 10 k 2 3 3 ch sep -- f frequency, f -- hz channel separation, ch sep -- db v cc = 6v r l = 4 ? v o = 0dbm rg = 0 ch2 j ch1 ch1 j ch2 ch2 j ch1 ch1 j ch2 2 0 0.2 0.4 0.6 0.8 1.0 jk452514 7 1k 23 57 10k 23 57 100k v no -- rg signal source resistance, rg -- ? output noise voltage, v no -- mv v cc = 6v r l = 4 ? rg = 0 j 0.1mv 3 10 20 30 40 50 60 jk452515 357 100 23 57 1k 2 svrr -- f r ripple frequency, f r -- hz ripple rejection, svrr -- db v cc = 6v r l = 4 ? rg = 0 v ccr = 0dbm (775mv)
la4525 no. 4022-6/8 rising and falling waveforms btl operation example 3 7 0.1 2 3 5 7 1.0 2 3 5 7 10 2 3 5 jk452517 23 57 0.1 23 57 1.0 2 8 0 0.4 0.8 1.2 1.6 2.0 jk452518 0246 thd -- p o output power, p o -- w total harmonic distortion, thd -- % btl v cc = 6v r l = 8 ? rg = 600 ? f = 1khz p o -- v cc supply voltage, v cc -- v output power, p o -- w btl r l = 8 ? thd = 10% rg = 600 ? f = 1khz
la4525 no. 4022-7/8 2 -10 2 0 -2 -4 -6 -8 jk452519 23 57 100 23 57 1k 23 57 10k 2 3 5 7 100k + + f response frequency, f -- hz frequency response -- db co1 co2 8 ? btl v cc = 6v r l = 8 ? v o = 0dbm rg = 600 ? vg = 46db/1khz c o 1,c o 2 470 f 220 f 3 jk452520 0.01 23 57 0.1 23 57 1.0 2 0 600 0 1.2 500 1.0 400 0.8 300 0.6 200 0.4 100 0.2 i cc, pd -- p o output power, p o -- w current drain, i cc -- ma power dissipation, pd -- w i cc pd btl pd = v cc i cc ? p o v cc = 6v rg = 600 ? f = 1khz = 1000 f handling instructions and precautions internal circuits figure 1. input pins (6 and 7) and btl input pin (5) figure 2. output pins (1 and 3) external components ? the starting time, t s , can be varied by changing the value of the input capacitor. a value of 2.2 f is recommended. a smaller value will result in a lower starting time , and a larger value, a higher starting time. ? the output capacitor should have a value of 470 f. a lower value will cause the low-fre quency roll-off and low-power characteristics to deteriorate. ? a value of 470 f is recommended for the power su pply capacitor, although this can change according to the design setup conditions. ? in dual mode, btl in (the channel 2 negative feedback connection) should be left floating. btl mode ? the output capacitors should have a value of 470 f. if these are omitted, a ??popping?? noise occurs. also, any output offset will cause a current to flow which could damage the load under quiescent dc conditions. ? the output capacitors can be replaced with a single 220 f bipolar capacitor. a larger value can cause switching noise when power is applied to the device.
la4525 ps no. 4022-8/8 sanyo semiconductor co.,ltd. assumes no responsib ility for equipment failures that result from using products at values that exceed, even momentarily, rate d values (such as maximum ra tings, operating condition ranges, or other parameters) listed in products specif ications of any and all sanyo semiconductor co.,ltd. products described or contained herein. sanyo semiconductor co.,ltd. strives to supply high-qual ity high-reliability products, however, any and all semiconductor products fail or malfunction with some probabi lity. it is possible that these probabilistic failures or malfunction could give rise to acci dents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause dam age to other property. when designing equipment, adopt safety measures so that these kinds of accidents or e vents cannot occur. such measures include but are not limited to protective circuits and error prevention c ircuits for safe design, redundant design, and structural design. upon using the technical information or products descri bed herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of sanyo semiconductor co.,ltd. or any third party. sanyo semiconductor co.,ltd. shall not be liable f or any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. information (including circuit diagr ams and circuit parameters) herein is for example only; it is not guaranteed for volume production. any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. when designing equi pment, refer to the "delivery specification" for the sanyo semiconductor co.,ltd. product that you intend to use. in the event that any or all sanyo semiconductor c o.,ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities conc erned 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 in formation storage or retrieval system, or otherwise, without the prior written consent of sanyo semiconductor co.,ltd. ? the voltage gain is fixed internally to 40db in dual mode and 46db in btl mode. these values cannot be altered by connecting external components. ? phase correction capacitance (600pf/total) is incorporat ed in the internal stages. oscillation damping components (r and c) are also incorporated in the output pin circuits. ? power consumption note that the 8-pin dip does not have a heat dissipating su rface and that the power dissipa tion ratings are critical. the maximum power dissipation of the device is 1.25w, and 1.5w when the device is mounted on the recommended pcb. the actual power dissipated depends on the supply voltage and the load conditions. ensure that the device is kept within its maximum rating. for ac supplies, transformer tappings may need to be adjusted to keep the device within maximum ratings. v cc 2 pd max = 2 r l + i cco v cc note for btl mode operation, the value of r l used in the calculation should be 1/2 the actual value. ? if the speaker plug jacks short to ground when connected, a protection resistor should be inserted in the output line. ? if the device is operated at or near its rated values, these values can be exceeded by small changes in operating conditions, leading to device breakdown. accordingly, ensure th at a safety margin is maintained so as not to exceed the maximum ratings. ? check the pcb surface after soldering to ensure that no pi ns have been accidentally shorted. any short between pins could cause poor operating characteristics or perman ently damage the device when power is applied. ? if making the pcb, check the printed wiring to ensure that no feedback loops occu r between input and output. this catalog provides information as of april, 2008. specifications and informat ion herein are subject to change without notice.
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