データシートサーチシステム
  Japanese  ▼
ALLDATASHEET.JP

X  

LM1291N データシート(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部品番号 LM1291N
部品情報  Video PLL System for Continuous-Sync Monitors
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
メーカー  NSC [National Semiconductor (TI)]
ホームページ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM1291N データシート(HTML) 5 Page - National Semiconductor (TI)

  LM1291N Datasheet HTML 1Page - National Semiconductor (TI) LM1291N Datasheet HTML 2Page - National Semiconductor (TI) LM1291N Datasheet HTML 3Page - National Semiconductor (TI) LM1291N Datasheet HTML 4Page - National Semiconductor (TI) LM1291N Datasheet HTML 5Page - National Semiconductor (TI) LM1291N Datasheet HTML 6Page - National Semiconductor (TI) LM1291N Datasheet HTML 7Page - National Semiconductor (TI) LM1291N Datasheet HTML 8Page - National Semiconductor (TI) LM1291N Datasheet HTML 9Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 12 page
background image
Block Diagram
TLH12323 – 3
FIGURE 3
Pin Descriptions
See
Figures 4 through 15 for input and output schematics
Pin 1 - CLAMP CNTL
This low-impedance current-mode
input pin is internally biased to 2V The direction of current
sets the pulse position (back porch or sync-tip) while the
current magnitude sets the pulse width In a typical applica-
tion a control voltage of 0V – 4V is applied to this pin
through a 15 kX resistor A voltage below 2V positions the
pulse on the back porch of the horizontal sync pulse and
decreasing voltage narrows the pulse A voltage above 2V
sets the pulse on the H sync-tip (slightly delayed from the
leading edge) and increasing voltage narrows the pulse At
the boundary of the switchover between the two modes
there is a narrow region of uncertainty resulting in oscilla-
tion which should be no problem in most applications
When there is no H sync in sync-tip mode the clamp pulse
is generated by the VCO at the frequency preset by pin 5
(fMIN) This feature is intended for use in On Screen Display
systems
Pin 2 - CLAMP PULSE
Active-low clamp pulse output See
Figure 4 for the output schematic
Pin 3 - VIDEO MUTE
This NPN open-collector output pro-
duces an active-low pulse when triggered by a step change
of H sync frequency See
Figure 5 for the output schematic
Pin4-fMAX A resistor from this pin to ground sets the
upper frequency limit of the VCO fMAX is approximately
18 c 109
(RMAX a 500)
Hz
Pin5-fMIN A resistor from this pin to ground sets the lower
frequency limit of the VCO fMIN is approximately
75 c 103 a
56 c 108
(RMIN a 500)
Hz
Pin6-VREF CAP This is the decoupling pin for the internal
82V reference It should be decoupled to pin 21 (GND) via
a short path with a cap of at least 470 mF
Pin7-VCC 12V nominal power supply pin This pin should
be decoupled to pin 21 (GND) via a short path with a cap of
at least 47 mF
Pin8-V SYNC IN
This pin accepts AC-coupled V sync of
either polarity The pin is internally biased at 52V its input
resistance is approximately 50 kX For best noise immunity
a resistor of 2 kX or less should be connected from the
input side of the coupling cap to ground See
Figure 6 for
the input schematic
Pin 9 - COMP VIDEO IN
The composite video sync stripper
is active only when no signal is present at pin 12 (HHV IN)
The signal to pin 9 must have negative-going sync tips
which are at least 014V below black level For best noise
immunity a resistor of 2 kX or less should be connected
from the input side of the coupling cap to ground See
Fig-
ure 7 for the input schematic
Pin 10 - HHV CAP
A capacitor is connected from this pin
to ground for detecting the polarity and existence of HHV
sync at pin 12
5


同様の部品番号 - LM1291N

メーカー部品番号データシート部品情報
logo
National Semiconductor ...
LM129 NSC-LM129 Datasheet
165Kb / 10P
   Precision Reference
logo
Linear Technology
LM129 LINER-LM129 Datasheet
179Kb / 4P
   6.9V Precision Voltage Reference
LM129 LINER-LM129 Datasheet
125Kb / 4P
   6.9V Precision Voltage Reference
LM129 LINER-LM129 Datasheet
166Kb / 8P
   6.9V Precision Voltage Reference
logo
National Semiconductor ...
LM1290 NSC-LM1290 Datasheet
176Kb / 9P
   Autosync Horizontal Deflection Processor
More results

同様の説明 - LM1291N

メーカー部品番号データシート部品情報
logo
National Semiconductor ...
LM1292 NSC-LM1292 Datasheet
217Kb / 10P
   Video PLL System for Continuous-Sync Monitors
LM1295 NSC-LM1295 Datasheet
253Kb / 11P
   DC Controlled Geometry Correction System for Continuous Sync Monitors
logo
TEMIC Semiconductors
U2203B TEMIC-U2203B Datasheet
106Kb / 7P
   RGB Video Amplifier System for Monitors
logo
NXP Semiconductors
TDA4810 PHILIPS-TDA4810 Datasheet
968Kb / 14P
   SYNC PROCESSOR AND HORIZONTAL DRIVE FOR MONITORS
May 1991
logo
National Semiconductor ...
LM1823 NSC-LM1823 Datasheet
510Kb / 7P
   VIDEO IF AMPLIFIER/PLL DETECTOR SYSTEM
logo
List of Unclassifed Man...
VNM-EDGE2 ETC2-VNM-EDGE2 Datasheet
976Kb / 6P
   Video Quality Monitors
logo
NXP Semiconductors
TDA4820T PHILIPS-TDA4820T Datasheet
63Kb / 10P
   Sync separation circuit for video applications
June 1990
logo
Toshiba Semiconductor
TA1270BF TOSHIBA-TA1270BF Datasheet
1Mb / 38P
   PAL/NTSC VIDEO AND CHROMA SYNC PROCESSING SYSTEM FOR PIP/POP/PAP
TA1270BFG TOSHIBA-TA1270BFG Datasheet
1Mb / 39P
   PAL / NTSC VIDEO CHROMA AND SYNC PROCESSING SYSTEM FOR PIP / POP / PAP
logo
Texas Instruments
LM1881MX TI1-LM1881MX Datasheet
1Mb / 18P
[Old version datasheet]   Video Sync Separator
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


データシート ダウンロード

Go To PDF Page


リンク URL




プライバシーポリシー
ALLDATASHEET.JP
ALLDATASHEETはお客様のビジネスに役立ちますか?  [ DONATE ] 

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   リンク交換   |   メーカーリスト
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com