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参数资料
| 型号： | LM1279AN/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 3 CHANNEL, VIDEO AMPLIFIER, PDIP20 |
| 封装： | DIP-20 |
| 文件页数： | 10/13页 |
| 文件大小： | 511K |
| 代理商： | LM1279AN/NOPB |
Pin Descriptions
Pin
No.
Pin
Name
Schematic
Description
1
Red OSD Input
These are standard TTL inputs. An OSD
signal at any of the three pins will
automatically switch the pre-amp into the
OSD mode. 7 colors, including white, are
available.
19
Blue OSD Input
20
Green OSD Input
2V
CC1
Power supply pin (excluding output stage)
3
Red Video In
Video inputs. These inputs
must be AC
Coupled with a minimum ofa1F cap, 10
F is preferred. A series resistor of about
33
must be used for ESD protection.
5
Green Video In
8
Blue Video In
4
Red Clamp Cap
The external clamp cap is charged and
discharged to the correction voltage
needed for DC restoration. 0.1 F is the
recommended value.
7
Green Clamp Cap
9
Blue Clamp Cap
6
Ground
Ground pin.
10
Contrast
Contrast control pin:
4V - no attenuation
0V - over 40 dB attenuation
Drive control pins:
4V - no attenuation
0V - 20 dB attenuation
12
Blue Drive
14
Green Drive
17
Red Drive
11
Clamp Pulse
The clamp pulse activates the DC
restoration circuitry. A 3.6V input is
required to activate the clamp pulse.
13
Blue Video Out
Video output. For proper black level the
output must drive 390
impedance.
15
Green Video Out
18
Red Video Out
LM1279A
www.national.com
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM1279DL WAF | 制造商:Texas Instruments 功能描述: |
| LM1279N | 功能描述:IC VIDEO AMP SYS 110MHZ 20-DIP RoHS:是 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 标准包装:1,000 系列:- 应用:驱动器 输出类型:差分 电路数:3 -3db带宽:350MHz 转换速率:1000 V/µs 电流 - 电源:14.5mA 电流 - 输出 / 通道:60mA 电压 - 电源，单路/双路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安装类型:表面贴装 封装/外壳:20-VFQFN 裸露焊盘 供应商设备封装:20-QFN 裸露焊盘（4x4） 包装:带卷 (TR) |
| LM1281 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:85 MHz RGB Video Amplifier System with On Screen Display (OSD) |
| LM1281CL WAF | 制造商:Texas Instruments 功能描述: |
| LM1281N | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Panasonic Industrial Company 功能描述:IC |
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