Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

LM1882-RCN Fiches technique(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce LM1882-RCN
Description  Programmable Video Sync Generator
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM1882-RCN Fiches technique(HTML) 4 Page - National Semiconductor (TI)

  LM1882-RCN Datasheet HTML 1Page - National Semiconductor (TI) LM1882-RCN Datasheet HTML 2Page - National Semiconductor (TI) LM1882-RCN Datasheet HTML 3Page - National Semiconductor (TI) LM1882-RCN Datasheet HTML 4Page - National Semiconductor (TI) LM1882-RCN Datasheet HTML 5Page - National Semiconductor (TI) LM1882-RCN Datasheet HTML 6Page - National Semiconductor (TI) LM1882-RCN Datasheet HTML 7Page - National Semiconductor (TI) LM1882-RCN Datasheet HTML 8Page - National Semiconductor (TI) LM1882-RCN Datasheet HTML 9Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 16 page
background image
Signal Specification (Continued)
posed because during interlace operation this value is inter-
nally divided by 2 in order to generate serration and equal-
ization pulses at 2 x the horizontal frequency. Horizontal
signals will change on the falling edge of the CLOCK signal.
Signal specifications are shown below.
Horizontal Period (HPER)
=
REG(4) x ckper
Horizontal Blanking Width:
= [REG(3) − 1] x ckper
Horizontal Sync Width:
=
[REG(2) − REG(1)] x ckper
Horizontal Front Porch:
=
[REG(1) − 1] x ckper
VERTICAL SYNC AND BLANK SPECIFICATION
All vertical signals are defined in terms of number of lines per
frame. This is true in both interlaced and noninterlaced
modes of operation. Care must be taken to not specify the
Vertical Registers in terms of lines per field. Since the first
CLOCK edge, CLOCK #1, causes the first falling edge of the
Vertical Blank (first Horizontal Blank) reference pulse, edges
referenced to this first edge aren+1 lines away, where “n”
is the width of the timing in question. Registers 5, 6, and 7
are programmed in this manner. Also, in the interlaced
mode, vertical timing is based on half-lines. Therefore regis-
ters 5, 6, and 7 must contain a value twice the total horizontal
(odd
and
even)
plus
1
(as
described
above).
In
non-interlaced mode, all vertical timing is based on
whole-lines. Register 8 is always based on whole-lines and
does not add 1 for the first clock. The vertical counter starts
at the value of 1 and counts until the value of VMAX. No re-
strictions exist on the values placed in the vertical registers.
Vertical Blank will change on the leading edge of HBLANK.
Vertical Sync will change on the leading edge of HSYNC.
(See
Figure 2.)
Vertical Frame Period (VPER) = REG(8) x hper
Vertical Field Period (VPER/n) = REG(8) x hper/n
Vertical Blanking Width = [REG(7) − 1] x hper/n
Vertical Syncing Width = [REG(6) − REG(5)] x hper/n
Vertical Front Porch = [REG(5) − 1] x hper/n
where
n = 1 for noninterlaced
n = 2 for interlaced
COMPOSITE SYNC AND BLANK SPECIFICATION
Composite Sync and Blank signals are created by logically
ANDing (ORing) the active LOW (HIGH) signals of the corre-
sponding vertical and horizontal components of these sig-
nals. The Composite Sync signal may also include serration
and/or equalization pulses. The Serration pulse interval oc-
curs in place of the Vertical Sync interval. Equalization
pulses occur preceding and/or following the Serration
pulses. The width and location of these pulses can be pro-
grammed through the registers shown below. (See
Figure 3.)
Horizontal Equalization PW = [REG(9) − REG(1)] x ckper
REG 9 = (HFP) + (HEQP) + 1
Horizontal Serration PW:
=
[REG(4)/n
+
REG(1)
REG(10)] x ckper
REG
10
=
(HFP)
+
(HPER/2) − (HSERR) + 1
Where
n
=
1
for
noninterlaced
single
serration/
equalization
n
=
2
for
noninterlaced
double
serration/
equalization
n = 2 for interlaced operation
DS100232-4
FIGURE 1. Horizontal Waveform Specification
www.national.com
4


Numéro de pièce similaire - LM1882-RCN

FabricantNo de pièceFiches techniqueDescription
logo
National Semiconductor ...
LM1882-RCN NSC-LM1882-RCN Datasheet
340Kb / 16P
   Programmable Video Sync Generator
More results

Description similaire - LM1882-RCN

FabricantNo de pièceFiches techniqueDescription
logo
Fairchild Semiconductor
74ACT715 FAIRCHILD-74ACT715_07 Datasheet
451Kb / 18P
   Programmable Video Sync Generator
74ACT715 FAIRCHILD-74ACT715_1 Datasheet
429Kb / 18P
   Programmable Video Sync Generator
74ACT715 FAIRCHILD-74ACT715 Datasheet
127Kb / 14P
   Programmable Video Sync Generator
logo
National Semiconductor ...
54ACT715 NSC-54ACT715 Datasheet
340Kb / 16P
   Programmable Video Sync Generator
logo
Harris Corporation
CD22402 HARRIS-CD22402 Datasheet
76Kb / 11P
   Sync Generator for TV Applications and Video Processing Systems
logo
Texas Instruments
LM1881MX TI1-LM1881MX Datasheet
1Mb / 18P
[Old version datasheet]   Video Sync Separator
logo
Siemens Semiconductor G...
SDA9257 SIEMENS-SDA9257 Datasheet
1Mb / 36P
   Clock Sync Generator
logo
National Semiconductor ...
LM1881 NSC-LM1881_06 Datasheet
687Kb / 12P
   Video Sync Separator
logo
NTE Electronics
NTE7049 NTE-NTE7049 Datasheet
30Kb / 3P
   Integrated Circuit CMOS-Sync Generator for TV & Video Processing Systems
logo
NXP Semiconductors
SAA1101 PHILIPS-SAA1101 Datasheet
112Kb / 18P
   Universal sync generator USG
January 1990
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
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