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TDA4886A Fiches technique(PDF) 3 Page - NXP Semiconductors

No de pièce TDA4886A
Description  140 MHz video controller with I2C-bus
Download  52 Pages
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Fabricant  PHILIPS [NXP Semiconductors]
Site Internet  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA4886A Fiches technique(HTML) 3 Page - NXP Semiconductors

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1998 Dec 04
3
Philips Semiconductors
Product specification
140 MHz video controller with I2C-bus
TDA4886A
1
FEATURES
• 140 MHz pixel rate
• 2.8 ns rise time, 3.8 ns fall time
• I2C-bus control
• I2C-bus data buffer for synchronization of adjustments
• Grey scale tracking
• On Screen Display (OSD) mixing with 50 MHz pixel rate
• OSD contrast
• Negative feedback for DC-coupled cathodes
• Especially for AC-coupled cathodes
– Black level adaptable to kind of post amplifier
– Internal positive feedback
– DAC outputs for black level restoration.
• Integrated black level storage capacitors
• Beam current limiting
• Subcontrast/contrast modulation
• Pedestal blanking
• Sync clipping.
2
GENERAL DESCRIPTION
The TDA4886A is a monolithic integrated RGB
pre-amplifier for colour monitor systems (e.g. 15" and 17")
with I2C-bus control and OSD. In addition to bus control,
beam current limiting and contrast modulation are
possible. The signals are amplified in order to drive
commonly used video modules or discrete solutions.
Individual black level control with negative feedback from
the cathode (DC coupling) or gradually adaptable black
level control with positive feedback and 3 DAC outputs for
external cut-off control (AC coupling) is possible.
With special advantages the circuit can be used in
conjunction with the TDA485X monitor deflection IC
family.
3
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA4886A
SDIP24
plastic shrink dual in-line package; 24 leads (400 mil)
SOT234-1


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