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參數資料
| 型號： | LA7685J |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP64 |
| 封裝： | SDIP-64 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 223K |
| 代理商： | LA7685J |
PAL/NTSC Single-chip Color Television
Signal Processing Circuit
Overview
The LA7685J is a single-chip IC (with VIF, SIF, video,
chroma, and deflection circuits built in) for use in PAL or
NTSC television sets.
Because the PLL+ splitting method is used in the VIF circuit,
the LA7685J is suited for use in top-of-the-line small and
mid-size television sets. In addition, when used in combination
with the LA7640N SECAM chroma IC, the LA7685J can be
used in a PAL/NTSC/SECAM multisystem set.
Features
[VIF Block]
.
PLL+ splitting (for excellent image and sound quality)
.
High-gain VIF amplifier
.
High-speed AGC
.
APC time constant switch built in
[SIF Block]
.
Simultaneous audio IN/OUT
.
Video/audio simultaneous muting, or audio only muting
also possible
.
1st amplifier with AGC function
[AV Switching Block]
.
INT/EXT AV switch
Delay line Video EXT, audio EXT Switch conditions
OFF
IN
D
OFF
EXT
C
ON
EXT
B
ON
IN
A
[OSD Block]
.
Three RGB inputs
.
RGB linear amplifier (–6 dB input: 2 V to 5 V)
.
First blanking (also used for B input)
[Chroma Block]
.
ACC filter, carrier filter built in
.
Ident detection output
.
Killer detection output
[Video Block]
.
Black extension
.
DC restoration
.
Delay line built in
.
Wide band: 9 MHz (with delay line shorted)
.
Built-in double differential circuits that also enable soft
tone
.
Supports S input (for VCRs)
.
DC transmission amount can be varied (externally
adjustable)
[Deflection Block]
.
Adjustment-free horizontal and vertical sync
.
Excellent anti-noise characteristics due to adoption of
duplex AFC
.
Vertical sync sensitivity can be adjusted externally
.
Constant vertical size with no signal (constant for
60/50 Hz)
.
Highly stable image during copy guard tape playback
(macrovision tapes, etc.)
.
Excellent stability against VCR skew distortion
Package Dimensions
unit : mm
3071-DIP64S
[LA7685J]
57.2
0.95
0.48
1.78
1.01
4.0
0.51min
5.0max
19.05
16.8
0.25
3.2
33
64
32
1
SANYO : DIP64S
Ordering number: EN 5153
Monolithic Linear IC
LA7685J
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
63095HA(II) No.5153-1/10
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