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TDA4885 Datasheet(PDF) 3 Page - NXP Semiconductors

Part No. TDA4885
Description  150 MHz video controller with I2C-bus
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 3 page
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1997 Nov 25
3
Philips Semiconductors
Product specification
150 MHz video controller with I2C-bus
TDA4885
1
FEATURES
• 150 MHz pixel rate
• 2.7 ns rise time
• Gain modulation capability for brightness uniformity
• I2C-bus control
• Grey scale tracking
• On Screen Display (OSD) mixing
• Negative feedback for DC-coupled cathodes
• Positive feedback for AC-coupled cathodes
• DAC outputs for black level restoration with AC-coupled
cathodes
• Integrated black level storage capacitors
• Beam current limiting
• Analog subcontrast setting
• Pedestal blanking
• OSD contrast
• Sync clipping.
2
GENERAL DESCRIPTION
The TDA4885 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 gain 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 fixed
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
TDA4885
SDIP32
plastic shrink dual in-line package; 32 leads (400 mil)
SOT232-1




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