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TDA4881 Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. TDA4881
Description  Advanced monitor video controller
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 2 page
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November 1992
2
Philips Semiconductors
Preliminary specification
Advanced monitor video controller
TDA4881
FEATURES
• Fully DC controllable
• 3 separate video channels
• Input black level clamping
• White level adjustment for 2 channels only
• Brightness control with correct grey scale tracking
• Contrast control for all 3 channels simultaneously
• Cathode feedback to internal reference for cut-off
control, which allows unstabilized video supply voltage
• Current outputs for RGB signal currents
• RGB voltage outputs to external peaking circuits
• Blanking and switch-off input for screen protection
• Sync on green operation possible
GENERAL DESCRIPTION
The TDA4881 is a monolithic integrated RGB amplifier for
colour monitor systems with super VGA performance,
intended for DC or AC coupling of the colour signals to the
cathodes of the CRT. With special advantages the circuit
can be used in conjunction with the TDA4851.
QUICK REFERENCE DATA
ORDERING INFORMATION
Note
1. SOT146-1; 1996 November 27.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP.
MAX.
UNIT
VP
positive supply voltage (pin 7)
7.2
8.0
8.8
V
IP
supply current
46
56
mA
Vl(b-w)
input voltage (black-to-white, pins 2, 5 and 8)
0.7
1.0
V
VO(b-w)
output voltage (black-to-white, pins 19, 16 and 13)
nominal contrast and
nominal gain
0.8
V
IO(b-w)
output current (black-to-white, pins 20, 17 and 14)
50
mA
IM
peak output current (pins 20, 17 and 14)
−−
100
mA
B
bandwidth
−3dB
70
−−
MHz
Gnom
nominal gain
1
dB
Gv
gain control range for 2 channels (relative to Gnom)
−4
+2
dB
Cv
contrast control range (relative to Gnom)
−20
+3
dB
∆Vbl
brightness control range
nominal gain
−80
+240
mV
Tamb
operating ambient temperature range
0
+70
°C
EXTENDED
TYPE NUMBER
PACKAGE
PINS
PIN POSITION
MATERIAL
CODE
TDA4881
20
DIL
plastic
SOT146(1)




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