1996 Jan 09 2
Philips Semiconductors Product specification
Video control combination circuit TDA3504
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
• Clamping, horizontal and vertical blanking of the three
input signals controlled by a 3-level sandcastle pulse
• Emitter-follower outputs for driving the RGB output
stages.
GENERAL DESCRIPTION
The TDA3504 is an integrated circuit which performs video
control functions in a PAL/SECAM decoder for negative
colour difference signals −(R−Y) and −(B−Y).
The required input signals are luminance and colour
difference 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.
QUICK REFERENCE DATA
All voltages referenced to pin 18 (ground).
ORDERING INFORMATION
SYMBOL PARAMETER MIN. TYP. MAX. UNIT
V
P
supply voltage (pin 2) − 12.0 − V
I
P
supply current (pin 2) − 95 − mA
V
11(p-p)
video blanking sync (VBS) input signal
(peak-to-peak value)
− 0.45 − V
V
15(p-p)
−(B−Y) colour difference input signal
(peak-to-peak value)
− 1.33 − V
V
14(p-p)
−(R−Y) colour difference input signal
(peak-to-peak value)
− 1.05 − V
V
10, 9, 8(b-w)
inserted RGB signals (black-to-white value) − 1.0 − V
V
6
3-level sandcastle pulse
level 1 − 2.5 − V
level 2 − 4.5 − V
level 3 − 8.0 − V
V
17
control voltage brightness 1.0 − 3.0 V
V
16
control voltage contrast 2.0 − 4.2 V
V
12
control voltage saturation 2.0 − 4.2 V
T
amb
operating ambient temperature 0 − +70 °C
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
TDA3504 DIP20 plastic dual in-line package; 20 leads (300 mil) SOT146-1