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PDF LA7837 Data sheet ( Hoja de datos )
| Número de pieza | LA7837 | |
| Descripción | Vertical Deflection Circuit with TV / CRT Display Drive | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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1. LA7837  Hay una vista previa y un enlace de descarga de LA7837 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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Ordering number:ENN3313C
www.DataSheet4U.com
Monolithic Linear IC
LA7837, 7838
Vertical Deflection Circuit
with TV/CRT Display Drive
Overview
The LA7837, 7838 are vertical deflection output ICs de-
veloped for use in high-grade TVs and displays. The inter-
lace and crossover distortion responses, in particular, have
been greatly improved, allowing excellent picture quality
on large size televisions and high precision interlace mode
displays.
Also, pulse signals can be used for input signals due to the
on-chip sawtooth wave generating circuit and driver cir-
cuit. Further, the DC and AC feedback circuit can be formed
with these ICs alone, simplifying pattern design of sets and
ensuring stable performance. All of the functions in a color
TV signal system can be processed by connecting these
ICs with SANYO’s single-chip IC LA7670 series (NTSC)
and LA7680/85 series (PAL/NTSC) (VIF/SIF, video,
chroma, deflection).
The LA7837 has a maximum deflection current of 1.8Ap-
p, making it appropriate for use in portable to mid-size tele-
visions.
The LA7838 has a miximum deflection current of 2.2Ap-
p, so it can be used for large size sets, and can drive from
33 to 37 inches.
Package Dimensions
unit:mm
3107-SIP13H
[LA7837, 7838]
25.6
3.4 10.0
2.0
2.4
1
0.8 2.0
0.5
13
0.4
1.15 1.2
SANYO : SIP13H
Features
• Low power dissipation due to on-chip pump-up circuit.
• On-chip 50/60Hz vertical size control circuit.
• On-chip sawtooth wave generating circuit.
• On-chip driver circuit.
• Vertical output circuit.
• On-chip thermal protection circuit.
• Excellent interlace response.
• Excellent crossover response.
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.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
12501TN (KT)/71693TS/8251TS(KOTO)/2090TA, TS(AF) No.3313–1/9
1 page  
LA7837, 7838
Sample Application Circuits for 14” Display (Retrace Time≈300µs)
www.DataSheet4U.com
Change VR4 to fixed constant after adjustment.
( ) : For negative polarity pulse.
Fig. 3
No.3313–5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet LA7837.PDF ] | |
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