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TDA4887PS

Features: ` 160 MHz pixel rate` 2.7 ns rise time, 3.6 ns fall time` I2C-bus control` I2C-bus data buffer for synchronization of adjustments` 8-bit Digital-to-Analog Converters (DACs)` 200 ns input clamping pulse` 4.6 V (p-p) output signal` Brightness control with grey scale tracking for user-frien...

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SeekIC No. : 004516409 Detail

TDA4887PS: Features: ` 160 MHz pixel rate` 2.7 ns rise time, 3.6 ns fall time` I2C-bus control` I2C-bus data buffer for synchronization of adjustments` 8-bit Digital-to-Analog Converters (DACs)` 200 ns input c...

TDA4887PS Data Sheet

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Part Number:
TDA4887PS
Supply Ability:
5000

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

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Product Details

Description



Features:

` 160 MHz pixel rate
` 2.7 ns rise time, 3.6 ns fall time
` I2C-bus control
` I2C-bus data buffer for synchronization of adjustments
` 8-bit Digital-to-Analog Converters (DACs)
` 200 ns input clamping pulse
` 4.6 V (p-p) output signal
` Brightness control with grey scale tracking for user-friendly performance (4 dB more than TDA4885 and TDA4886)
` Brightness control without grey scale tracking for easy alignment
` On Screen Display (OSD) mixing with 50 MHz pixel rate
` OSD contrast
` Negative feedback for DC-coupled cathodes
` Especially for AC-coupled cathodes
Bus controlled black level adaptable to post amplifier type
Internal positive feedback
DAC outputs for black level restoration
` Integrated black level storage capacitors
` Beam current limiting
` Subcontrast/contrast modulation
` Adjustable pedestal blanking
` Sync clipping.


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
VP supply voltage (pin 7)   0 8.8 V
VP(n) supply voltage; channels 1, 2 and 3 (pins 21, 18 and 15)   0 8.8 V
Vi(n) input voltage; channels 1, 2 and 3 (pins 6, 8 and 10)   -0.1 VP V
Vext external DC voltage applied to
pins 1 to 4
pins 5 and 11
pins 12 and 13
pins 23, 20 and 17
pins 22, 19 and 16
pin 24		   -0.1
-0.1
-0.1
-0.1
note 1
-0.1
 VP
VP + 0.7
VP
VP + 0.7
note 1
VP		 V
V
V
V
V
V
Io(n)(av) average output current; channels 1, 2 and 3 (pins 22, 19 and 16)   - 20 mA
Io(n)(M) peak output current channels 1, 2 and 3 (pins 22, 19 and 16)   - 50 mA
Ptot total power dissipation   - 1400 mW
Tstg storage temperature   -25 +150 °C
Tamb operating ambient temperature   -20 +70 °C
Tj junction temperature   -25 +150 °C
VESD peak output current channels 1, 2 and 3
(pins 22, 19 and 16)		 note 2
note 3		 -250
-3000		 +250
+3000		 V
V

1. No external voltages.
2. Equivalent to discharging a 200 pF capacitor via a 0.75 H inductance ( "SNW-FQ-302B").
3. Equivalent to discharging a 100 pF capacitor via a 1500 series resistor ( "SNW-FQ-302A").



Description

The TDA4887PS is a monolithic integrated RGB preamplifier 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 IC offers brightness control with or without grey scale tracking for easy alignment. The signals are amplified to drive commonly used video modules or discrete solutions. A choice can be made between individual black level control with negative feedback from the cathode (DC coupling), or black level control with positive feedback and three DAC outputs for external cut-off control (AC coupling).

The circuit of the TDA4887PS can be used with special advantages in conjunction with the TDA485x monitor deflection IC family.




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