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参数资料
| 型号： | LM1269NA/NOPB |
| 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： | 2/20页 |
| 文件大小： | 1676K |
| 代理商： | LM1269NA/NOPB |
Pin Descriptions (Continued)
Pin No.
Pin Name
Schematic
Description
18
19
20
Blue Video Out
Green Video Out
Red Video Out
Video outputs of the LM1269. The ideal
driver for this part is the LM246X CRT driver
family, which has the necessary gain of 26
dB or 20 V/V.
21
V
Ref Out
A 0.1 F capacitor must be placed close to
this pin for decoupling the internal V
Ref. This
pin may be used for an external voltage
reference with proper buffering.
22
ABL
The Auto Beam Limit control reduces the
gain of the video amplifier in response to a
control voltage proportional to the CRT beam
current. The ABL acts identically on all three
channels. ABL is required for CRT life and
X-ray protection.
23
Clamp Pulse
This input accepts a standard TTL or CMOS
input. A positive signal activates the clamp
pulse for DC restoration of the video input.
The AC coupling capacitors at the video
inputs are used for holding the DC correction
voltage, eliminating the need for additional
capacitors.
24
H Flyback
H flyback is an analog signal input from the
monitor horizontal scan. The LM1269 is able
to generate an accurate blanking pulse in
the video outputs from this input. The
horizontal flyback from the monitor must be
a clean signal, with no ringing or other noise
on the signal.
LM1269
www.national.com
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM126H | 制造商:NSC 制造商全称:National Semiconductor 功能描述:VOLTAGE REGULATORS |
| LM126H/883B | 制造商:Texas Instruments 功能描述:IC,VOLT REGULATOR,FIXED,+-12V,BIPOLAR,CAN,10PIN,METAL |
| LM126H/883C | 制造商:Texas Instruments 功能描述: |
| LM1270 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Hi-Brite 200 MHz I2C Compatible RGB Image Enhancer with Video Auto Sizing |
| LM1270N | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Hi-Brite 200 MHz I2C Compatible RGB Image Enhancer with Video Auto Sizing |
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