Philips Semiconductors
Preliminary specification
YUV one chip picture improvement based on luminance
vector-, colour vector- and spectral processor
TDA9178
THERMAL CHARACTERISTICS
SYMBOL
Rth(j-a)
PARAMETER
CONDITIONS
in free air
VALUE
UNIT
thermal resistance from junction to ambient
TDA9178 (SDIP24)
56
65
K/W
K/W
TDA9178T (SO24)
QUALITY SPECIFICATION
In accordance with “SNW-FQ-611 part E”.
CHARACTERISTICS
V
CC = 8 V; Tamb = 25 °C; unless otherwise specified.
SYMBOL PARAMETER
Supply
CONDITIONS
MIN.
TYP.
MAX.
UNIT
SUPPLY VOLTAGE (PIN VCC
)
VCC
ICC
supply voltage
supply current
7.2
−
8.0
8.8
V
1fH mode
2fH mode
100
105
−
−
mA
mA
−
DIGITAL SUPPLY DECOUPLING (PIN DECDIG
)
VDECDIG
IDECDIG
decoupling voltage
−
−
5
−
V
decoupling load current
−
1
mA
Input and output selection
LUMINANCE INPUT (PIN YIN)
Vi(Y)
input voltage (excluding sync)
AMS = 0
AMS = 1
no clamp
−
−
−
0.315
1.0
−
0.45
1.41
0.1
V
V
Ii(bias)(Y)
input bias current
µA
LUMINANCE OUTPUT (PIN YOUT)
Vo(cl)
output voltage level during
clamping
AMS = 1
AMS = 0
−
2.7
−
V
V
−
0.8
−
GY(i-o)
luminance gain input to output
transparent
at AMS = 1;
at 1 V (p-p)
0.93
1.04
1.15
transparent
at AMS = 0;
at 0.3 V (p-p)
0.96
1.07
1.18
S/N(Y)
BY
signal-to-noise ratio of luminance
output
transparent
52
5
−
−
−
0
−
dB
luminance bandwidth
1fH mode (−1 dB);
transparent
−
MHz
MHz
%
2fH mode (−1 dB);
transparent
6
−
Ebl
black level error
transparent
−1.0
+1.0
1999 Sep 24
15
NXP [ NXP ]
