TDA4885 Datasheet, PDF (15/56 Pages) NXP Semiconductors – 150 MHz video controller with I2C-bus

Philips Semiconductors
150 MHz video controller with I²C-bus
Product specification
TDA4885
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX.
Pedestal blanking
∆V_{30, 25, 20PED}
difference of pedestal black
level to video black level at
nominal brightness at signal
output pins related to nominal
colour signal
note 22; see Fig.5
∆V_{30, 25, 20PED(T)} variation of ∆V_{30, 25, 20PED} with T_amb = −20 to +70 °C
temperature related to nominal
colour signal
−18 −16 −14
−0.8 0
+0.8
Signal outputs (channel 1: pin 30; channel 2: pin 25; channel 3: pin 20)
V_{30, 25, 20(b-w)} nominal colour signal
nominal contrast; maximum
2.5
2.8 3.1
gain; pins 12, 13 and 14
grounded; V_I(b-w) = 0.7 V;
without load
V_{30, 25, 20(max)}
V_{30, 25, 20(min)}
V_{30, 25, 20(max)}
maximum colour signal
switch-off voltage
(minimum output voltage level)
maximum output voltage level
maximum contrast; maximum
gain; pins 12, 13 and 14
grounded; V_I(b-w) = 0.7 V;
without load
at arbitrary input signals,
contrast, brightness and gain
adjustments; without load
4.0
4.5 5
−
0.05 0.1
V_P − 2 −
V_P − 1
R_{30, 25, 20}
I_{30, 25, 20}
I_{30, 25, 20M(source)}
output resistance
maximum source current
peak source current
during fast positive signal
transients
−
80 −
−15
−
−
−40
−
−
I_{30, 25, 20M(sink)} peak sink current
during fast negative signal
−
transients
−
20
S/N
D_{30, 25, 20(th)}
signal-to-noise ratio
output thermal distortion
note 23
note 24
44
50 −
−
−
0.6
Frequency response at signal outputs (channel 1: pin 30; channel 2: pin 25; channel 3: pin 20)
∆G_{30, 25, 20(f)}
amplification decrease by
frequency response
f = 135 MHz (small signal)
−
1.2 3.0
t_{r(30, 25, 20)}
rise time of fast transients
10 to 90% amplitude; nominal −
colour signal; note 25
2.7 3
t_{f(30, 25, 20)}
fall time of fast transients
90 to 10% amplitude; nominal −
colour signal; note 25
3.9 4.3
dV_{30, 25, 20}
over/undershoot of output
signal pulse related to actual
output pulse amplitude
input rise/fall time = 1 ns;
nominal colour signal
−
5 10
UNIT
%
%
V
V
V
V
Ω
mA
mA
mA
dB
%
dB
ns
ns
%
1997 Nov 25
15