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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
Audio Controller for TV Use
Ordering number:ENN2713A
LA7953
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Overview
The LA7953 Audio Controller is a single-chip, liner IC
featuring a built-in expansion circuit. The device also features a 4-input 1-output audio switch, an acoustic mute, a
LINE-OUT output, and audio control functions for volume,
balance, bass and treble on-chip.
Excellent audio reproduction can be obtained using the right
channel expansion circuit.
The LA7953 operates on a single 12V power supply and is
available in 30-pin plastic DIPs.
Features
• On-chip audio controller and audio switch facilitate design.
• Audio controller for volume, balance, bass and treble.
• 4-input/1-output audio switch.
• On-chip expansion circuit ensures excellent sound reproduction.
• LINE-OUT output.
• Acoustic mute.
Specifications
Maximum Ratings at Ta = 25˚C
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tnerructuptuoTUO-ENILI
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V1,3,5,7,9,11,
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4
02
22
12
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CC
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31,51
8
21
71,92
32,52
91
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V,xam
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6
xamVCCV41=41V
xamVCCV41=41V
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xam 5Am
xam 5Am
V,xam
xamVCCV41=41V
82
V,xam
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62
V,xam
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72
Package Dimensions
unit:mm
3061-DIP30S
30
1
1.15
V
CC
1.78
V41=21V
[LA7953]
27.2
0.48 0.95
16
8.6
10.16
15
4.25
4.95max
3.2
0.51min
SANYO : DIP30S
Continued on next page.
0.25
12501TN (KT)/O2095TH (KOTO)/7128TA, TS (KOTO) No.2713–1/7
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LA7953
Continued from preceding page.
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Operating Conditions at Ta = 25˚C
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Operating Characteristics at Ta = 25˚C, VCC=12V
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250.02.0%
20.3V
1748698kΩ
105051
1535456Am
2093054036smrVm
21–4.0+1+Bd
252.02%
25627Bd
2 7921Bd
23.1–9–5.6–Bd
25.6931Bd
281–9–5.6–Bd
255–04–Bd
255–04–Bd
25608Bd
22.05.0%
2521541561
21–01+Bd
20.3V
25.1V
1051003
sgnitaR
5.1V
Ω
˚C
Ω
tinU
No.2713–2/7
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LA7953
Audio Switch Truth Table
4S
)4niP(
HH NOFFOFFOFFONOFFOFFOFFO
LH FFONOFFOFFOFFONOFFOFFO
HL FFOFFONOFFOFFOFFONOFFO
LL FFOFFOFFONOFFOFFOFFONO
Equivalent Curcuit Block Diagram
5S
)6niP(
1L
)1niP(
2L
)3niP(
3L
)5niP(
4L
)7niP(
1R
)9niP(
2R
)11niP(
3R
)31niP(
4R
)51niP(
No.2713–3/7