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参数资料
| 型号： | LA7681 |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP48 |
| 封装： | SHRINK, DIP-48 |
| 文件页数： | 1/10页 |
| 文件大小： | 155K |
| 代理商： | LA7681 |
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
Sigle-Chip Signal Processor
for Color TV Use
Ordering number:ENN3343A
LA7680, 7681
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
30801TN (KT)/32593TS/6290TA KI 8-6402, 6403 No.3343–1/10
Package Dimensions
unit:mm
3149-DIP48S
[LA7680, 7681]
SANYO : DIP48S
Overview
The LA7680 and LA7681 signal processors provide all the
components required to decode PAL or NTSC Color tele-
vision signals. On-chip circuits include VIF, SIF, a video
processor, a chroma demodulator, and deflection drivers.
The self-adjusting signal processors support vertical field
scanning rates of both 50 and 60Hz, allowing the LA7837
and LA7838 vertical output drivers to maintain a constant
picture height.
The LA7681 replaces the LA7680’s G-Y output at pin 22
with a color contrast signal for input to a SECAM chroma
demodulator. This contrast signal is fixed at the maximum.
The LA7680/7681 is available in 48-pin shrink DIPs.
Features
Minimized external components.
48-pin shrink DIP.
VIF/SIF
High-gain VIF amplifier.
Fast-response automatic gain control (AGC).
No delay between audio input and output.
Muting for both audio and video signals or for audio
alone.
Video processor
On-chip two-dimensional differential circuit.
Variable current transfer.
7MHz bandwidth.
Chroma demodulator
PAL and NTSC system compatible.
Optimized demodulation angles and ratios.
High performance burst cleaning filter and ACC/killer
detector.
On-chip tint circuit (NTSC only).
Deflection drivers
Adjustment-free vertical or horizontal synchronization.
Two-stage automatic frequency control.
Adjustable separation sensitivity for vertical synchroni-
zation.
Fixed picture height for both PAL and NTSC.
Fixed picture height.
1
24
48
25
2.53
1.78
46.0
1.05
0.25
15.24
13.8
0.48
4.25
3.8
5.1max
0.51min
相关PDF资料 |
PDF描述 |
|---|---|
| LA76810HA | AM/FM, AUDIO/VIDEO DEMODULATOR, PDIP54 |
| LA76810HA | AM/FM, AUDIO/VIDEO DEMODULATOR, PDIP54 |
| LA76814 | HORIZ/VERT DEFLECTION IC, PDIP54 |
| LA76818A | AM/FM, AUDIO/VIDEO DEMODULATOR, PDIP54 |
| LA76818A | AM/FM, AUDIO/VIDEO DEMODULATOR, PDIP54 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LA76810A | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Monolithic Linear IC For PAL/NTSC Color Television Sets VIF/SIF/Y/Deflection 1chip IC |
| LA76818A | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:The LA76818A is I2C bus controller ICs that support the different TV broadcast formats used worldwide and aim for rationalization of color TV set desi |
| LA76820 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:单片多制式TV处理集成电路 |
| LA76828N | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:电视小信号处理芯片 |
| LA76828N-A-E | 制造商:Sony Semiconductor Solutions Division 功能描述: |
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