Sanyo LA7950 Specifications
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
TV Field Frequency Discriminator
Ordering number:ENN1351B
LA7950
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Overview
The LA7950 is an IC designed to discriminate the field
frequency based on the relation between TV vertical signal
and horizontal signal. It is suited for use in automatically
setting various types of video equipment, such as color TV,
to PAL/NTSC mode.
Functions
• Sync separation.
• Field frequency counter.
• Vertical sync separation.
• Forced (manual) output select.
Features
• Small-sized package (SIP10).
• Stable to external disturbance such as noise.
• Many output pins for mode select (4 outputs).
• Wide operating voltage range (6 to 13V).
Specifications
Maximum Ratings at Ta = 25˚C
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erutarepmetgnitarepOrpoT 58+ot02–
erutarepmetegarotSgtsT 521+ot04–
xam 41V
2
01,9,8,7
Ta≤60˚C
Package Dimensions
unit:mm
3043B-SIP10
[LA7950]
24.1
(6.5)
7.7max
1.1
4.9
1
(0.62)
1.22.54
0.5
3.25
10
0.25
1.5
SANYO : SIP10
02Am
˚C
˚C
Operating Conditions at Ta = 25˚C
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egatlovylppusdednemmoceRV
egnaregatlovgnitarepOV
2
po 2.31ot6V
2
12501TN (KT)/9158YT/6205MW/O283KI, TS No.1351–1/3
21V
LA7950
Operating Characteristics at Ta = 25˚C, V2=12V, See Test Circuit
retemaraPlobmySsnoitidnoC
V
2CC
Functional Blocks and Sample Applicationn Circuit 1
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egaltov.xamnoitarepononLAPdecroFV
egatlovtratsnoitarepoCSTNdecroFV
egatlov.nimnoitarepononCSTNdecroFV
egatlovnoitarutastuptuOV
2CC
3
1CD
SOP
HNP
SON
LNN
01,9,8,7
DNG1niP82161Am
k02 Ω DNGdna4nipssorca5.010.115.11V
I
Am01=7.0V
01,9,8,7
sgnitaR
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8.43.58.5V
6.8V
4.0V
tinU
2.11V
2V
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)sesluplåtnozirohforebmuN(
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043ot882)LAP(zH05noffo
DNG)CSTN(zH06ffono
B+)LAP(zH05noffo
Sample Applicationn Circuit 2 : Using dedicated clock (LA7808)
tuptuO
8,7sniP01,9sniP
Continued on next page.
No.1351–2/3
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