Philips Semiconductors
PAL/NTSC decoder
Product specification
TDA3566A
FEATURES
• A black-current stabilizer which
controls the black-currents of the
three electron-guns to a level low
enough to omit the black-level
adjustment
• Contrast control of inserted RGB
signals
• No black-level disturbance when
non-synchronized external RGB
signals are available on the inputs
• NTSC capability with hue control.
APPLICATIONS
• Teletext/broadcast antiope
• Channel number display.
GENERAL DESCRIPTION
The TDA3566A is a decoder for the
PAL and/or NTSC colour television
standards. It combines all functions
required for the identification and
demodulation of PAL/NTSC signals.
Furthermore it contains a luminance
amplifier, an RGB-matrix and
amplifier. These amplifiers supply
output signals up to 4 V peak-to-peak
(picture information) enabling direct
drive of the discrete output stages.
The circuit also contains separate
inputs for data insertion, analog and
digital, which can be used for text
display systems.
QUICK REFERENCE DATA
All voltages referenced to ground.
SYMBOL
PARAMETER
Supply
VP
supply voltage (pin 1)
IP
supply current (pin 1)
Luminance amplifier (pin 8)
V8(p-p)
CON
input voltage (peak-to-peak value)
contrast control
Chrominance amplifier (pin 4)
V4(p-p)
SAT
input voltage (peak-to-peak value)
saturation control
RGB matrix and amplifiers
V13, 15, 17(p-p)
output voltage at nominal luminance and contrast
(peak-to-peak value)
Data insertion
V12, 14, 16(p-p)
input signals (peak-to-peak value)
Data blanking (pin 9)
V9
input voltage for data insertion
Sandcastle input (pin 7)
V7
blanking input voltage
V7
burst gating and clamping input voltage
MIN. TYP. MAX. UNIT
−
12
−
V
−
90
−
mA
−
450
−
mV
−
16.5
−
dB
40
−
1100 mV
−
50
−
dB
−
3.8
−
V
−
1
−
V
0.9
−
−
V
−
1.5
−
V
−
7
−
V
ORDERING INFORMATION
EXTENDED TYPE
NUMBER
TDA3566A
PINS
28
PACKAGE
PIN POSITION
MATERIAL
DIL
plastic
CODE
SOT117
February 1994
2