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TDA3566A

PAL/NTSC decoder

Philips Electronics 

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

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