Philips Semiconductors
Product specification
TDA4555
TDA4556
Multistandard decoder
CHARACTERISTICS
VP = V13-9 = 12 V; Tamb = 25 °C; measured in Fig.1; unless otherwise specified
PARAMETER
SYMBOL
MIN.
TYP.
MAX. UNIT
Supply (pin 13)
Supply voltage range
Supply current
VP = V13-9
IP = I13
10,8
−
13,2
V
−
65
−
mA
Chrominance part
Chrominance input signal (pin 15)
input voltage with 75% colour bar signal (peak-to-peak
value)
V15-9(p-p)
Z15-9
20
100
3,3
200
mV
input impedance
2,3
−
kΩ
Chrominance output signal (pin 12)
output voltage
(peak-to-peak value)
V12-9(p-p)
Z12-9
−
−
−
1,6
−
−
V
Ω
V
output impedance
(n-p-n emitter follower)
20
−
d.c. output voltage
Input for delayed signal (pin 10)
d.c. input current
V12-9
8,2
I10
−
−
−
10
µA
kΩ
input resistance
R10-9
10
−
Demodulator part (PAL/NTSC)
Colour difference output signals
output voltage (proportional to V13-9) (peak-to-peak value)
TDA4555
− (R-Y) signal (pin 1)
V1-9(p-p)
V3-9(p-p)
−
−
1,05 V ± 2 dB −
1,33 V ± 2 dB −
V
V
− (B-Y) signal (pin 3)
TDA4556
+ (R-Y) signal (pin 1)
V1-9(p-p)
V3-9(p-p)
−
−
1,05 V ± 2 dB −
1,33 V ± 2 dB −
V
V
+ (B-Y) signal (pin 3)
Ratio of colour difference output signals
(R-Y)/(B-Y)
V1/3-9
−
−
−
−
0,79 ± 10%
−
Residual carrier (subcarrier frequency)
(peak-to-peak value)
V1,3-9(p-p)
V1,3-9(p-p)
V1-9(p-p)
−
30
−
mV
mV
mV
Residual carrier (PAL only)
(peak-to-peak value)
10
−
H/2 ripple at (R-Y) output (pin 1)
(peak-to-peak value)
without input signal
10
D.C. output voltage
n-p-n emitter follower with internal current source of 0,3 mA V1,3-9
−
−
7,7
−
V
output impedance
Z1, 3-9
−
150
Ω
November 1984
5
NXP [ NXP ]
