Philips Semiconductors
Product specification
TDA4555
TDA4556
Multistandard decoder
PARAMETER
SYMBOL
MIN.
TYP.
MAX. UNIT
Demodulator part (SECAM)
Colour difference signals (see note 4)
output voltage (proportional to V13-9) (peak-to-peak value)
TDA4555
−(R-Y) signal (pin 1)
V1-9(p-p)
−
1,05
1,33
−
−
V
V
− (B-Y) signal (pin 3)
V3-9(p-p)
−
TDA4556
+ (R-Y) signal (pin 1)
V1-9(p-p)
V3-9(p-p)
−
−
1,05
1,33
−
−
V
V
+ (B-Y) signal (pin 3)
Ratio of colour difference output signals
(R-Y)/(B-Y)
V1/3-9
−
−
−
0,79(1)± 10%
−
Residual carrier (4 to 5 MHz)
(peak-to-peak value)
V1,3-9(p-p)
20
20
30
30
mV
mV
Residual carrier (8 to 10 MHz)
(peak-to-peak value)
V1,3-9(p-p)
H/2 ripple
at (R-Y) (B-Y) outputs (pins 1 and 3) (peak-to-peak value) V1,3-9(p-p)
with fo signals
−
−
−
20
mV
V
D.C. output voltage
V1,3-9
7,7
−
Shift of inserted levels relative to levels
of demodulated fo frequencies (IC only)
∆V/∆T(R-Y)
∆V/∆T(B-Y)
−
−
−0,55
−
−
mV/K
mV/K
+ 0,25
HUE control (NTSC)/service switch
Phase shift of reference carrier
at V17-9 = 2 V
−φ
−
−
−
−
30 (note 2)
−
−
−
−
deg
deg
deg
kΩ
at V17-9 = 3 V
φ
0
at V17-9 = 4 V
+φ
30 (note 2)
5
Input resistance
R17-9
Service position
Switching voltage (pin 17)
burst OFF; colour ON
(for oscillator adjustment)
V17-9
V17-9
−
−
−
0,5
V
V
HUE control OFF; colour ON
(for forced colour ON)
6
−
Crystal oscillator (pin 19)
For double colour subcarrier frequency
input resistance
R19-9
−
350
−
−
Ω
lock-in-range
∆f
±400
−
Hz
referred to subcarrier frequency
November 1984
6
NXP [ NXP ]
