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參數資料
| 型號： | LA7938 |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP22 |
| 封裝： | DIP-22 |
| 文件頁數： | 1/4頁 |
| 文件大?。?/td> | 71K |
| 代理商： | LA7938 |
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
Electronic Channel Select
System Control Circuit for TV/VCR Use
Ordering number:ENN2843
LA7938
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
12501TN (KT)/N248YT, TS No.2843–1/4
21.2
0.95
0.48
1.7
1.78
3.9max
0.51min
6.4
7.62
3.3
3.25
0.25
111
22
12
Package Dimensions
unit:mm
3059-DIP22S
[LA7938]
SANYO : DIP22S
Overview
The SANYO LA7938 monolithic linear TV/VCR electronic
tuner system controller IC integrates all the peripheral cir-
cuitry for a TV or VTR tuner, with the exception of the
microcontroller, into a single chip.
It incorporates a 2-input/4-output band-switch, 5.0V and
5.75V voltage regulators, comparator, sync signal process-
ing circuit, AFT DC shift circuit and constant current cir-
cuit. Each PNP output of the band-switch circuit typically
sources 40mA, eliminating the need for external current
drivers.
The LA7938 operates from a recommended supply volt-
age range of 8.7 to 12.5V. It is available in 22-pin shrink
DIPs.
Features
Integrates all tuner peripheral circuits except controller.
Band-switch outputs source up to 40mA.
Regulators each supply up to 50mA.
22-pin shrink DIP.
Specifications
Maximum Ratings at Ta = 25C
Continued on next page.
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