November 1984

6

Philips Semiconductors

Product specification

Multistandard decoder

TDA4555

TDA4556

Demodulator part (SECAM)

Colour difference signals (see note 4)

TDA4555

−(R-Y) signal (pin 1)

−

1,05

−

V

− (B-Y) signal (pin 3)

−

1,33

−

V

TDA4556

+ (R-Y) signal (pin 1)

−

1,05

−

V

+ (B-Y) signal (pin 3)

−

1,33

−

V

Ratio of colour difference output signals

(R-Y)/(B-Y)

−

± 10% −

Residual carrier (4 to 5 MHz)

(peak-to-peak value)

−

20

30

mV

Residual carrier (8 to 10 MHz)

(peak-to-peak value)

−

20

30

mV

H/2 ripple

at (R-Y) (B-Y) outputs (pins 1 and 3) (peak-to-peak value)

−−

20

mV

D.C. output voltage

−

7,7

−

V

Shift of inserted levels relative to levels

∆V/∆T(R-Y)

−−0,55

−

mV/K

∆V/∆T(B-Y)

−+ 0,25

−

mV/K

HUE control (NTSC)/service switch

Phase shift of reference carrier

−φ

−

30 (note 2)

−

deg

φ−

0

−

deg

+φ

−

30 (note 2)

−

deg

Input resistance

−

5

−

k

Ω

Service position

Switching voltage (pin 17)

burst OFF; colour ON

(for oscillator adjustment)

−−

0,5

V

HUE control OFF; colour ON

(for forced colour ON)

6

−−

V

Crystal oscillator (pin 19)

For double colour subcarrier frequency

input resistance

−

350

−Ω

lock-in-range

referred to subcarrier frequency

∆f

±400

−−

Hz

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT