TDA4885 查看數據表（PDF） - Philips Electronics

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TDA4885

150 MHz video controller with I2C-bus

Philips Electronics 

Philips Semiconductors

150 MHz video controller with I2C-bus

Product specification

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

TDA4885

NAME

SDIP32

PACKAGE

DESCRIPTION

plastic shrink dual in-line package; 32 leads (400 mil)

VERSION

SOT232-1

1997 Nov 25

3

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