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TDA4885

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 restoratio...

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SeekIC No. : 004516406 Detail

TDA4885: 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...

TDA4885 Data Sheet

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Part Number:
TDA4885
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



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.


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER MIN. MAX. UNIT
VP supply voltage (pin 7) 0 8.8 V
VP1, 2, 3 supply voltage channel 1, 2 and 3 (pins 29, 24 and 19) 0 8.8 V
Vi input voltage (pins 6, 8 and 10) -0.1 VP V
Vext external DC voltage applied to the following pins:
pins 1 to 4
pins 12, 13, 14 and 17
pins 11 and 5
pins 15 and 16
pins 31, 26 and 21
pins 30, 25 and 20
pins 32, 27 and 22		 -0.1
-0.1
-0.1
-0.1
-0.1
note 1
-0.1		 VP
VP
VP + 0.7
VP
VP + 0.7
note 1
VP		 V
V
V
V
V
V
Io(av) average output current (pins 30, 25 and 20) - 20 mA
IOM peak output current (pins 30, 25 and 20) - 50 mA
Ptot total power dissipation - 1300 mW
Tstg storage temperature -25 +150 °C
Tamb operating ambient temperature -20 +70 °C
Tj junction temperature -25 +150 °C
VESD electrostatic handling for all pins
machine model 0.75 H (note 2)
human body model (note 3)		 -250
-3000		 +250
+3000		 V
V

1. No external voltages.
2. Equivalent to discharging a 200 pF capacitor via a 10 series resistor ( "UZW-B0/FQ-B302").
3. Equivalent to discharging a 100 pF capacitor via a 1500 series resistor ( "UZW-B0/FQ-A302").



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 TDA4885 monitor deflection IC family.




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