Page 1
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.
Monolithic Linear IC
Quasi-Parallel Intercarrier Detector
Ordering number:ENN2866A
LA7510
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Overview
The LA7510 is a 4.5MHz to 6.5MHz intercarrier audio IF
detector for high-quality multi-channel TV and VCR sound
systems. It is designed for use in quasi-parallel circuit configurations to eliminate audio buzz and minimize other sideeffects present in conventional detection circuits.
The LA7510 includes a 3-stage IF amplifier, IF AGC circuit and transistor intercarrier audio detection circuit. It
operates from a single 8 to 10 power supply.
A compact 9-pin single-in-line package and coil-less cir-
cuit simplifiers the design of low-cost detection circuitry.
Features
• Compact package.
• Excellent audio S/N characteristics.
• Coil-less circuit.
Specifications
Maximum Ratings at Ta = 25˚C
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V
xam 21V
egatlovylppusmumixaM
noitapissidrewopelbawollAxamdP 045Wm
erutarepmetgnitarepOrpoT 56+ot01–
erutarepmetegarotSgtsT 521+ot55–
tnerructuptuomumixaMI
CC
V3xamVCCV21= 21V
Ta≤65˚C
xam 3Am
6
Package Dimensions
unit:mm
3017D-SIP9
[LA7510]
22.0
1
(0.84)
2.54
0.5
(4.5)
9
0.51min
1.3
SANYO : SIP9
3.0
5.7max
3.2
0.25
1.35
˚C
˚C
Operating Conditions at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppusdednemmoceRV
egnaregatlovgnitarepOV
7
po 01ot8V
7
30801TN (KT)/O3095MH/N018YT, TS No.2866–1/5
9V
Page 2
Operating Characteristics at Ta = 25˚C, VCC=9V
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tnerrucylppuSI
ytivitisnestupnIiV
egnarCGARGVroftupnimumixam(
leveltupnimumixaMxamiVBd1foesaercnituptuorotcetedrofleveltupniFI001021µBd
edutilpmatuptuorotceteDV
N/SoiduAN/S
V
7
3
60
Equivalent Circuit Block Diagram
LA7510
V4=)CGAFI(712232Am
.noitaludom
nimpytxam
%04htiwtuptuorotcetedp-pV53.0rofleveltupniFI
O
iV–)p-pV53.0=0607Bd
Bd31=S/P,leveltuptuozHM5.409031081smrVm
noitaludomesacriats%5.78,zHM57.85=pf
zH004=mf,zHk52±MF:S,zHM52.45=sf
noitaludom-noN:NBd31=S/P
432405µBd
0565Bd
sgnitaR
tinU
Pin Functions Unit (resistance : Ω)
.oNniPtiucriClanretnI noitpircseD
2,1 .stupnidecnalabreifilpmaFI
3 .nipretlifCGAFI
ahtiwdelpuocedebdluohS ≥ .roticapacFµ10.0
δ nasahcus,desuebdluohsscitsiretcarahcerutarepmet
.roticapaciSLA
.tiucricgniwollofehtgnisuybdecuderebnac
natdooghtiwroticapacA.Fµ1ebdluohsroticapacretlifehT
tuptuorotcetedehtnoelppir,hgihsielppirylppusrewopfI
Continued on next page.
No.2866–2/5
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LA7510
Continued from preceding page. Unit (resistance : Ω)
.oNniPtiucriClanretnI noitpircseD
6 .tuptuorotceteD
033lanretninasah0157AL Ω .niptuptuoehtnoretsiser
lanretxeehT.rewollof-rettimenasiegatstuptuoehT
ehthtiwsecnadepmihctamotderiuqersiRecnatsiser
ehttahtetoN.retlifssap-dnabcimareczHM5.4gniwollof
9 .nipretlifrotcetedrotsisnarT
,sesaercniecnaticapacehtsaspordlangiszHM5.4
.ecnamrofrepN/Soidua
Functional Description
1.IF Amplifier
As shown in figure 1, the IF amplifier is a 3-stage balanced circuit. The AGC detector output controls the gain of
all three stages.
oiduamumitporofdetcelesebdluohsroticapacretlifehT
ehtecnis,Fp58nahtsselebdluohseulavstI.esion-ot-langis
gnidargeddnaoitarlevelreirracdnuos/erutcipehtgnisaercni
Figure 1
2.AGC Detector
The AGC detector , shown in figure 2, is a peak-detection type circuit. Pin 3 is the peak-detection filter capacitor
connection.
Figure 2
3.Transistor Detector and Video Amplifier
The detector circuit is shown in figure 3. The balanced IF signals from the IF amplifier and applied separately to
the bases of the differential pair.
The detector output is taken from the emitters of the differential pair, smoothed by the filter on pin 9, and amplified by the video amplifier. The video signal (≈0.85/Vp-p) and sound IF signal are output on pin 6 via a 330Ω
resistor.
No.2866–3/5
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Sample Application circuit
LA7510
Figure 3
No.2866–4/5
Page 5
LA7510
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 March, 2001. Specifications and information herein are subject to
change without notice.
PS No.2866–5/5
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