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TDA3506 Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. TDA3506
Description  Video control combination circuit with automatic cut-off control
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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TDA3506 Datasheet(HTML) 2 Page - NXP Semiconductors

 
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November 1987
2
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3505
TDA3506
GENERAL DESCRIPTION
The TDA3505 and TDA3506 are monolithic integrated circuits which perform video control functions in a PAL/SECAM
decoder. The TDA3505 is for negative colour difference signals
−(R-Y), −(B-Y) and the TDA3506 is for positive colour
difference signals
+(R-Y), +(B-Y).
The required input signals are: luminance and colour difference (negative or positive) and a 3-level sandcastle pulse for
control purposes. Linear RGB signals can be inserted from an external source. RGB output signals are available for
driving the video output stages. The circuits provide automatic cut-off control of the picture tube.
Features
• Capacitive coupling of the colour difference and
luminance input signals with black level clamping in the
input stages
• Linear saturation control acting on the colour difference
signals
• (G-Y) and RGB matrix
• Linear transmission of inserted signals
• Equal black levels for inserted and matrixed signals
• 3 identical channels for the RGB signals
• Linear contrast and brightness controls, operating on
both the inserted and matrixed RGB signals
• Peak beam current limiting input
• Clamping, horizontal and vertical blanking of the three
input signals controlled by a 3-level sandcastle pulse
• 3 DC gain controls for the RGB output signals (white
point adjustment)
• Emitter-follower outputs for driving the RGB output
stages
• Input for automatic cut-off control with compensation for
leakage current of the picture tube
QUICK REFERENCE DATA
PACKAGE OUTLINE
28-lead DIL; plastic (SOT117); SOT117-1; 1996 November 20.
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supply voltage (pin 6)
VP = V6-24
12
V
Supply current
IP =I6
95
mA
Composite video input
signal (peak-to-peak value)
V15-24(p-p)
0,45
V
Colour difference input
signals (peak-to-peak value)
−(B-Y) or +(B-Y) respectively
V18-24(p-p)
1,33
V
−(R-Y) or +(R-Y) respectively
V17-24(p-p)
1,05
V
Inserted RGB signals
V
(black-to-white value)
V12,13,14-24
1,0
V
Three-level sandcastle pulse
V10-24
2,5
V
4,5
V
8,0
V
Control voltage ranges
brightness
V20-24
1,0
3,0
V
contrast
V19-24
2,0
4,3
V
saturation
V16-24
2,0
4,3
V


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