Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

TDA4882 Folha de dados(PDF) 6 Page - NXP Semiconductors

Nome de Peças TDA4882
Descrição Electrónicos  Advanced monitor video controller for OSD
Download  28 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  PHILIPS [NXP Semiconductors]
Página de início  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA4882 Folha de dados(HTML) 6 Page - NXP Semiconductors

Back Button TDA4882 Datasheet HTML 2Page - NXP Semiconductors TDA4882 Datasheet HTML 3Page - NXP Semiconductors TDA4882 Datasheet HTML 4Page - NXP Semiconductors TDA4882 Datasheet HTML 5Page - NXP Semiconductors TDA4882 Datasheet HTML 6Page - NXP Semiconductors TDA4882 Datasheet HTML 7Page - NXP Semiconductors TDA4882 Datasheet HTML 8Page - NXP Semiconductors TDA4882 Datasheet HTML 9Page - NXP Semiconductors TDA4882 Datasheet HTML 10Page - NXP Semiconductors Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 28 page
background image
1997 Sep 04
6
Philips Semiconductors
Product specification
Advanced monitor video controller for OSD
TDA4882
7.5
Input clamping
The clamping pulse (Fig.17) is for input clamping only.
The input signals are at black level during the clamping
pulse and are clamped to an internal artificial black level.
The coupling capacitors provide black-level storage.
The threshold for the clamping pulse is higher than that for
vertical blanking, therefore, the rise and fall times of the
clamping pulse need to be faster than 75 ns/V during
transition from 1 to 3.5 V.
7.6
Vertical blanking
The vertical blanking pulse (Fig.17) will be detected if the
input voltage is higher than the threshold voltage for
approximately 320 ns but does not exceed the threshold
for the clamping pulse in the time between. During the
vertical blanking pulse the input clamping is disabled to
avoid misclamping in the event of composite input signals.
The input signal is blanked and the artificial black level is
inserted instead. Also the brightness is set internally to its
nominal value, thus the output signal is at reference black
level. The DC value of the reference black level will be
adjusted by cut-off stabilization.
7.7
Horizontal blanking
During horizontal blanking (Fig.18) the output signal is set
to reference black level and output clamping is activated.
If the voltage exceeds the switch-off threshold, the signal
is blanked and switched to ultra-black level for screen
protection and spot suppression during V-flyback.
Ultra-black level is the lowest possible channel output
voltage and is not dependent on cut-off stabilization.
7.8
Cut-off and black-level stabilization
For cut-off stabilization (DC coupling to the CRT) and
black-level stabilization (AC coupling) the video signal at
the cathode or the coupling capacitor is divided by an
adjustable voltage divider and fed to the channel feedback
inputs. During horizontal blanking time this signal is
compared with an internal DC voltage of approximately
5.8 V. Any difference will lead to a reference black-level
correction by charging or discharging the integrated
capacitor which stores the reference black-level
information between the horizontal blanking pulses.
7.9
On Screen Display
For OSD (Fig.3), fast switching of control pin 6 to less than
1 V (e.g. 0.7 V) blanks the input signals. The OSD signals
can easily be inserted to the external cascode transistor.
7.10
Test mode
During test mode (pins 9 and 10 connected to VP) the
black levels at the channel voltage outputs are set
internally to typical 0.7 V with nominal brightness and
3 V DC at channel signal inputs.
Fig.3 OSD application.
handbook, full pagewidth
MHA816
OSD
fast blanking
4.7 k
1 k
150
220
100 pF
20
channel 1
channel 2
current
output
BFQ235
PH2222
channel 3
OSD
signal input
TDA4882
contrast
17
14
6
depending on
channel gain
1 k
Ω to 10 kΩ
PH2222


Nº de peça semelhante - TDA4882

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
NXP Semiconductors
TDA4881 PHILIPS-TDA4881 Datasheet
118Kb / 12P
   Advanced monitor video controller
November 1992
TDA4884 PHILIPS-TDA4884 Datasheet
189Kb / 28P
   Advanced monitor video controller for OSD
1997 Nov 26
TDA4885 PHILIPS-TDA4885 Datasheet
396Kb / 56P
   150 MHz video controller with I2C-bus
1997 Nov 25
TDA4886 PHILIPS-TDA4886 Datasheet
495Kb / 52P
   140 MHz video controller with I2C-bus
1998 Nov 11
TDA4886A PHILIPS-TDA4886A Datasheet
495Kb / 52P
   140 MHz video controller with I2C-bus
1998 Dec 04
More results

Descrição semelhante - TDA4882

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
NXP Semiconductors
TDA4884 PHILIPS-TDA4884 Datasheet
189Kb / 28P
   Advanced monitor video controller for OSD
1997 Nov 26
logo
NTE Electronics
NTE7138 NTE-NTE7138 Datasheet
54Kb / 7P
   Integrated Circuit Advanced Monitor Video Controller for OSD
logo
NXP Semiconductors
TDA4881 PHILIPS-TDA4881 Datasheet
118Kb / 12P
   Advanced monitor video controller
November 1992
logo
NTE Electronics
NTE7137 NTE-NTE7137 Datasheet
33Kb / 5P
   Integrated Circuit Advanced Monitor Video Controller
logo
STMicroelectronics
STV9432 STMICROELECTRONICS-STV9432 Datasheet
186Kb / 18P
   100MHz OSD FOR MONITOR
logo
Samsung semiconductor
KS2508 SAMSUNG-KS2508 Datasheet
224Kb / 22P
   OSD PROCESSOR FOR MONITOR
S5D2508A01 SAMSUNG-S5D2508A01 Datasheet
222Kb / 24P
   OSD PROCESSOR FOR MONITOR
logo
STMicroelectronics
STV9432TA STMICROELECTRONICS-STV9432TA Datasheet
227Kb / 24P
   100MHz OSD FOR MONITOR INCLUDING BEAM CURRENTS & VIDEO TIMING ANALYZER
logo
Samsung semiconductor
S5D2509 SAMSUNG-S5D2509 Datasheet
289Kb / 32P
   OSD PRESSOR FOR MONITOR (PRELIMINARY)
logo
STMicroelectronics
STV9432TAP STMICROELECTRONICS-STV9432TAP Datasheet
210Kb / 25P
   100MHz OSD FOR MONITOR INCLUDING BEAM CURRENTS, VIDEO TIMING ANALYZER AND PWMs
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28


Folha de dados Download

Go To PDF Page


Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   roca de Link   |   Lista de Fabricantes
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