- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385474 > LM1203BN (NATIONAL SEMICONDUCTOR CORP) IC-VIDEO AMP SYSTEM PDF資料下載
參數(shù)資料
| 型號(hào)： | LM1203BN |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | IC-VIDEO AMP SYSTEM |
| 中文描述： | 3 CHANNEL, VIDEO AMPLIFIER, PDIP28 |
| 封裝： | PLASTIC, DIP-28 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 559K |
| 代理商： | LM1203BN |
Additional Applications of the LM1203
(Continued)
When diode D4 at Pin 11 is switched to ground the input
video signals will be DC shifted down and clamped at a
voltage near ground (approximately 250 mV). This will dis-
able the video amplifiers and force the output DC level low.
The DC outputs from other similarly configured LM1203s
could overide this lower DC level and provide the output
signals to the 75
X
cable drivers. In this case any additional
LM1203s would share the same 390
X
output resistor. The
maximum DC plus peak white output voltage should not be
allowed to exceed 7V because the ‘‘off’’ amplifier output
stage could suffer internal zener damage. SeeFigure 3 and
text for a description of the internal configuration of the vid-
eo amplifier.
Figure 10 shows the configuration for a three channel high
frequency amplifier with non gated DC feedback. Pin 14 is
tied low to turn on the clamp comparators (feedback amplifi-
ers). The inverting inputs (Pins 17, 21, 26) are connected to
the amplifier outputs from a low pass filter. Additional low
frequency filtering is provided by the clamp caps. The drive
resistors can be made variable or fixed at values between 0
and 300
X
. Maximum output swings are achieved when the
DC output is set to approximately 4V. The high frequency
response will be dependent upon external peaking at the
drive pins.
TL/H/9178–10
FIGURE 10. Three Channel High Frequency Amplifier with Non-gated DC Feedback (Non-video Applications)
http://www.national.com
12
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM1203 | RGB Video Amplifier System |
| LM1203N | RGB Video Amplifier System |
| LM1209 | 130 MHz/100 MHz RGB Video Amplifier System with Blanking |
| LM1212N | 230 MHz Video Amplifier System with OSD Blanking |
| LM1229 | I2C Compatible CMOS TV RGB and Deflection Processor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM1203C | 制造商:TI 制造商全稱:Texas Instruments 功能描述:RGB VIDEO-AMPLIFIER SYSTEM |
| LM1203CN | 制造商:TI 制造商全稱:Texas Instruments 功能描述:RGB VIDEO-AMPLIFIER SYSTEM |
| LM1203FN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Triple Video Amplifier |
| LM1203N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:RGB Video Amplifier System |
| LM1203-N | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM1203 RGB Video Amplifier System |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。