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参数资料
| 型号： | LM1246AAA/NA |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP24 |
| 封装： | PLASTIC, DIP-24 |
| 文件页数： | 5/51页 |
| 文件大小： | 2794K |
| 代理商： | LM1246AAA/NA |
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Pin Descriptions and Application Information (Continued)
Pin
No.
Pin Name
Schematic
Description
23
CLAMP
This pin accepts either TTL or CMOS logic
levels. The internal switching threshold is
approximately one-half of V
CC. An external
series resistor, R
31, of about 1K is recommended
to avoid overdriving the input devices. In any
event, R
EXT must be large enough to prevent the
voltage at pin 23 from going higher than V
CC or
below GND.
24
H Flyback
Proper operation requires current reversal. R
H
should be large enough to limit the peak current
at pin 24 to about +4 ma during blanking, and
500 A during scan. C
17 is usually needed for
logic level inputs and should be large enough to
make the time constant, R
HC17 significantly
larger than the horizontal period. R
34 and C8 are
typically 300
and 330 pF when the flyback
waveform has ringing and needs filtering. C
18
may be needed to filter extraneous noise and
can be up to 100 pF.
LM1246
www.national.com
13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM1246AAC/NA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:IC 150MHZ RGB PREAMP 1246 DIP24 |
| LM1246AAC/NA/NOPB | 功能描述:IC PREAMP RGB 150MHZ 24-DIP RoHS:是 类别:集成电路 (IC) >> 线性 - 视频处理 系列:- 产品变化通告:Product Discontinuation 07/Mar/2011 标准包装:3,000 系列:OMNITUNE™ 类型:调谐器 应用:移动电话，手机，视频显示器 安装类型:表面贴装 封装/外壳:65-WFBGA 供应商设备封装:PG-WFSGA-65 包装:带卷 (TR) 其它名称:SP000365064 |
| LM1246NA | 制造商:NSC 制造商全称:National Semiconductor 功能描述:150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs |
| LM1247 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs |
| LM1247AAG/NA | 功能描述:IC PREAMP CMOS 150MHZ 24DIP RoHS:否 类别:集成电路 (IC) >> 线性 - 视频处理 系列:- 产品变化通告:Product Discontinuation 07/Mar/2011 标准包装:3,000 系列:OMNITUNE™ 类型:调谐器 应用:移动电话，手机，视频显示器 安装类型:表面贴装 封装/外壳:65-WFBGA 供应商设备封装:PG-WFSGA-65 包装:带卷 (TR) 其它名称:SP000365064 |
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