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ordering number : en6075 30499rm (ot) no. 6075-1/17 overview the LA8520M is an i/o switching audio signal-processing ic for use in facsimile units and telephones. it integrates a crosspoint switch, a btl power amplifier, an electronic volume control, a microphone amplifier, and other functions on a single chip. applications personal facsimile units and telephones functions ? crosspoint switch (equivalent to an 8 8 switch) ? btl power amplifier ? electronic volume control ? serial interface features ? built-in btl power amplifier (8 to 32 load): v cc = 5 v, r l = 16 , pomax = 250 mw ? electronic volume control (btl power amplifier system: seven 4-db steps, receiver amplifier system: two 3-db steps) ? low switching noise, low crosstalk characteristics (crosspoint switch) package dimensions unit: mm 3129-mfp36sd 0.25 15.3 1 18 36 19 0.85 0.4 0.8 2.5max 2.25 0.1 7.9 9.2 10.5 0.65 sanyo: mfp36sd [LA8520M] LA8520M sanyo electric co.,ltd. semiconductor bussiness headquarters tokyo office tokyo bldg., 1-10, 1 chome, ueno, taito-ku, tokyo, 110-8534 japan audio signal-processing ic with i/o switching monolithic linear ic 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. parameter symbol conditions ratings unit maximum supply voltage v cc max 15 v allowable power dissipation pd max ta 70c 600 mw (mounted on a glass-epoxy board: 114.3 76.1 1.6 mm 3 ) operating temperature topr ?20 to +70 c storage temperature tstg ?40 to +150 c specifications maximum ratings at ta = 25c parameter symbol conditions ratings unit recommended supply voltage v cc 5v allowable operating supply voltage range v ccop 4.5 to 7.5 v v ccopbtl 4.5 to 9.0 v operating conditions at ta = 25c
no. 6075-2/17 LA8520M parameter symbol conditions ratings unit min typ max crosspoint switch voltage gain gsw vin = ?13 dbv ?2.5 ?0.5 1.5 db crosspoint switch maximum input level vimax thd = 1.5 % ?13 ?7 ? dbv crosspoint switch output noise voltage nosw 20 to 20 khz 15 60 vrms microphone amplifier/tr amplifier voltage gain gmic vin = ?53 dbv 38 40 42 db microphone amplifier/tr output distortion thdmc vin = ?53 dbv ? 0.6 1.5 % microphone amplifier/tr equivalent input noise nimc rg = 620 , 20 to 20 khz 2.5 7.5 vrms voltage microphone amplifier/tr maximum voltage gain gmax 40 ? ? db receiver amplifier/ogm amplifier voltage gain gre vin = ?33 dbv 18 20 22 db receiver amplifier/ogm amplifier output thdre vin = ?33 dbv 0.4 1.5 % distortion operational amplifier voltage gain gop vin = ?13 dbv 8 10 12 db operational amplifier output distortion thdop vin = ?13 dbv ? 0.4 1.5 % dr amplifier output level vodr vin = ?23 dbv, in(8), out(32), sw(10) on ?16.1 ?13.6 ?11.1 dbv dr amplifier output distortion thddr vin = ?23 dbv, in(8), out(32), sw(10) on 0.5 1.5 % handset amplifier output level vohd vin = ?16 dbv, in(9), out(34), sw(0b) on ?2 +0.5 +3 dbv handset amplifier output distortion thdhd vin = ?16 dbv, in(9), out(34), sw(0b) on ? 0.55 1.5 % handset amplifier attenuator level 1 att1 address (51) 2.3 3 3.7 db handset amplifier attenuator level 2 att2 address (52) 3.45 4.15 4.85 db handset amplifier attenuator level 3 att3 address (53) 5.4 6.1 6.8 db electronic volume control output level voevr vin = ?20 dbv, in(9), out(28), sw(2d) on ?22.9 ?20.4 ?17.9 dbv electronic volume control step size wevr vin = ?20 dbv, in(9), out(28), sw(2d) on 2.9 3.8 4.6 db electronic volume control output noise voltage noevr 20 to 20 khz, out(28) ? 25 60 vrms [btl power amplifier] voltage gain gpwr vin = ?20 dbv, r l = 16 18.2 19.7 21.2 db total harmonic distortion thdpw vin = ?30 dbv, r l = 16 ? 0.7 1.5 % maximum btl output power pomax thd = 10 %, r l = 16 250 400 ? mw ripple rejection ratio svrr rg = 620 , frin = 100 hz, vrin = ?20 dbv, 40 50 ? db r l = 16 output noise voltage nopw rg = 620 , 20 to 20 khz, r l = 16 ?2060 vrms [cpu interface] clock frequency fck ? ? 500 khz input signal high level v h 3??v input signal low level v l ??1.5v [v ref and current drain] internal reference voltage (the pin 10 voltage) vref 2.1 2.25 2.4 v quiescent current 1 icco1 with the btl power amplifier on and the ?2129ma crosspoint switch off quiescent current 2 icco2 with the btl power amplifier off and the ? 14.5 21 ma crosspoint switch off electrical characteristics at ta = 25c, v cc = 5 v, fin = 1 khz, r l = 10 k
no. 6075-3/17 LA8520M power supply block diagram and application 8 to 32 units (resistance: , capacitance: f)
no. 6075-4/17 LA8520M data generator test circuit diagram power supply units (resistance: , capacitance: f)
serial data format a6 to a0: setting for the crosspoint switch and control switch address (hexadecimal binary) d: controls the on/off state of the crosspoint switch and control switch. d = 1: crosspoint switch on, btl amplifier on d = 0: crosspoint switch off, btl amplifier off (the electronic volume control and attenuator can be set to either 0 or 1.) other addresses address mode 00 all crosspoint switches off, default settings for the control switches 3f btl power amplifier on (the default state is off.) 40 electronic volume control 0 db default setting 41 electronic volume control ?4 db 42 electronic volume control ?8 db 43 electronic volume control ?12 db 44 electronic volume control ?16 db 45 electronic volume control ?20 db 46 electronic volume control ?24 db 47 electronic volume control ?28 db 50 handset amplifier attenuator 0 db default setting 51 handset amplifier attenuator ?3 db 52 handset amplifier attenuator ?4 db 53 handset amplifier attenuator ?6 db no. 6075-5/17 LA8520M address table input - output line hand rf1 rf2 door aux evr op re. ?070d14?21292f tr. 01 ?0e151b22 ? 30 rf1 02 08 38 16 1c 23 2a 31 rf2 03 09 0f 39 1d 24 2b 32 door ? 0a 10 17 ? 25 2c 33 aux 04 0b 11 18 1e 26 2d 34 mic05?12191f27?35 ogm 06 0c 13 1a 20 28 2e 36 op ??????37?
serial data timing ? f max (maximum clock frequency) 500 khz ? t wl (low-level clock pulse width) at least 1 s ? t wh (high-level clock pulse width) at least 1 s ? t cs (chip enable setup time) at least 1 s ? t ch (chip enable hold time) at least 1 s ? t ds (data setup time) at least 1 s ? t dh (data hold time) at least 1 s ? t wc (chip enable pulse time) at least 1 s no. 6075-6/17 LA8520M
usage notes ? microphone and tr amplifiers since these two amplifiers are designed for high gain (they support gains up to 40 db), they cannot be used as buffer amplifiers. use at lower gains may result in loss of phase margin and oscillation. therefore, the gain must be set to a value of at least 6 db. ? handset amplifier output (pin 34) a resistor (of at least 150 ) must be inserted in series if this output is connected directly to a dynamic speaker. ? btl power amplifier the phase compensation capacitor c4 is not required if the high-frequency noise reduction capacitor c1 is not used. also, the phase compensation capacitors c2, c3, and c4 should be placed as close as possible to the ic pins, with c2 located the closest. ? inter-pin shorting this ic may be damaged or destroyed if power is applied with any pins shorted together. therefore, when mounting this ic to a printed circuit board always check for pin shorting caused by stray solder or any other foreign material before applying power. ? load shorting this ic may be damaged or destroyed if it is operated for extended periods with the load shorted. do not allow the load to be shorted. ? the slightest fluctuations in operating conditions may cause the ratings to be exceeded if this ic is operated in the vicinity of the maximum ratings. since this can lead to destruction of the device, applications must be designed with adequate margins with respect to the power-supply voltage and other parameters so that the maximum ratings are never exceeded. no. 6075-7/17 LA8520M input
no. 6075-8/17 LA8520M pin functions pin no. pin pin notes equivalent circuit voltage (v) re amplifier noise filter re amplifier output ogm amplifier output ogm amplifier noise filter operational amplifier noise filter operational amplifier output 1 2 14 15 16 17 re-nf re-out ogm-out ogm-nf op-nf op-out 2.25 2.25 2.25 2.25 2.25 2.25 tr amplifier output tr amplifier minus input tr amplifier plus input microphone amplifier plus input microphone amplifier minus input microphone amplifier output 3 4 5 11 12 13 tr-out tr-nin tr-pin mic-pin mic-nin mic-out 2.25 2.25 2.25 2.25 2.25 2.25 rf1 input rf2 input auxiliary input 6 7 9 rf1-in rf2-in aux-in 2.25 2.25 2.25 door phone input 8 dr-in 2.25 continued on next page. unit (resistance: )
no. 6075-9/17 LA8520M continued from preceding page. pin no. pin pin notes equivalent circuit voltage (v) internal circuit reference voltage (about 2.25 v) ? circuits other than the btl amplifier operate using this potential as a reference. 10 vref 2.25 chip enable input data input clock input 19 20 21 ce di cl v cc v cc v cc btl power amplifier output 1 btl power amplifier minus input 24 26 p-out1 p-in 0.44 v cc 0.44 v cc btl power amplifier output 2 btl power amplifier reference voltage 23 27 p-out2 p-vref 0.44 v cc 0.44 v cc continued on next page. to 27 pin to 24 pin unit (resistance: )
no. 6075-10/17 LA8520M continued from preceding page. pin no. pin pin notes equivalent circuit voltage (v) electronic volume control output 28 vr-out 2.25 auxiliary output door phone output rf2 output rf1 output line output 29 30 31 32 35 aux-out dr-out rf2-out rf1-out ln-out 2.25 2.25 2.25 2.25 2.25 handset amplifier noise filter handset amplifier output 33 34 hd-nf hd-out 2.25 2.25 ground power amplifier power supply power amplifier ground power supply 18 22 25 36 gnd p-v cc p-gnd v cc ? 5 v applied ? 5 v applied unit (resistance: )
no. 6075-11/17 LA8520M input level (dbv) output total harmonic distortion (%) crosspoint switch input dynamic range thermal characteristics electronic volume control output distortion thermal characteristics input level (dbv) total harmonic distortion (%) btl amplifier output distortion thermal characteristics total harmonic distortion (%) output power (mw) v cc = 5 v resistance: 16 handset amplifier output distortion thermal characteristics input level (dbv) total harmonic distortion (%)
no. 6075-12/17 LA8520M electronic volume control step width thermal characteristics step width (db) temperature (c) att attenuation thermal characteristics attenuation (db) temperature (c) quiescent current thermal characteristics temperature (c) quiescent current (ma) btl amplifier output distortion characteristics output power (mw) total harmonic distortion (%)
no. 6075-13/17 LA8520M btl amplifier output distortion characteristics output power (mw) total harmonic distortion (%) handset amplifier output distortion characteristics total harmonic distortion (%) output level (v rms) door phone amplifier output distortion characteristics total harmonic distortion (%) output level (dbv) output level (v rms) total harmonic distortion (%) re amplifier output distortion characteristics
no. 6075-14/17 LA8520M operational amplifier output distortion characteristics output level (v rms) total harmonic distortion (%) ogm amplifier output distortion characteristics output level (v rms) total harmonic distortion (%) microphone and tr amplifiers output distortion characteristics output level (v rms) total harmonic distortion (%) input level (dbv) output total harmonic distortion (%) crosspoint switch input dynamic range characteristics
no. 6075-15/17 LA8520M electronic volume control step width v cc dependence supply voltage (v) step width (db) attenuator attenuation v cc dependence supply voltage (v) attenuation (db) input crosstalk characteristics input level (dbv) crosstalk level (dbv) crosstalk v cc dependence supply voltage (v) crosstalk level (dbv)
no. 6075-16/17 LA8520M btl amplifier ripple rejection ratio v cc dependence supply voltage (v) ripple rejection ratio (db) output noise v cc dependence supply voltage (v) output noise (dbv) btl amplifier output noise v cc dependence supply voltage (v) output noise (dbv) quiescent current v cc dependence quiescent current (ma) supply voltage (v)
ps no. 6075-17/17 LA8520M this catalog provides information as of march, 1999. specifications and information herein are subject to change without notice. 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.

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