TDA4884 Datasheet, PDF (8/28 Pages) NXP Semiconductors – Advanced monitor video controller for OSD

Philips Semiconductors
Three gain control video pre-amplifier for OSD
Product specification
TDA4884
10 CHARACTERISTICS
V_P = 8.0 V; T_amb = 25 °C; all voltages measured with respect to GND (pin 4); unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
V_P
supply voltage (pin 7)
I_P
supply current (pin 7)
Video signal inputs (pins 2, 5 and 8)
7.2
8.0
8.8
V
36
48
60
mA
V_i(b-w)
V_I(clamp)
I_I
input voltage (black-to-white
value; pins 2, 5 and 8)
DC voltage during input clamping
(artificial black + V_BE)
DC input current
Contrast control (pin 6); note 2
note 1
no clamping; V_I = V_I(clamp);
T_amb = −20 to +70 °C
during clamping;
V_I = V_I(clamp) + 0.7 V
during clamping;
V_I = V_I(clamp) − 0.7 V
−
2.8
−0.05
50
−50
0.7
3.1
+0.05
75
−75
1.0
V
3.4
V
+0.250 µA
120 µA
−120 µA
V_i(CC)
V_i(CC)(max)
V_i(CC)(nom)
input voltage
maximum input voltage
input voltage for nominal contrast
note 3
1.0
−
6.0
V
−
−
V_P − 1 V
−
4.3
−
V
I_i(CC)
C_OSD(min)
-C----C_n---_o--_m--
input current
minimum contrast for OSD
contrast relative to nominal
contrast
V_i(CC) = 4.3 V
−5
V_i(CC) = 0.7 V
−
V_i(CC) = 6.0 V; pins 3, 1 and 2.4
11 open-circuit
−1
−0.1 µA
−40 −
dB
3.4
−
dB
V_i(CC) = 1.0 V; pins 3, 1 and −26 −22 −19 dB
11 open-circuit
V_i(CC)(min)
input voltage for minimum contrast pins 3, 1 and 11 open-circuit −
0.7
−
V
∆G_track
tracking of output signals of
channels 1, 2 and 3
1 V < V_i(CC) < 6 V; note 4 −
0
0.5
dB
t_df(C)
t_dr(C)
t_f(C)
delay between leading (falling)
edges of contrast voltage and
voltage output waveforms
delay between trailing edges
(rising) of contrast voltage and
voltage output waveforms
fall time of voltage output
waveform
V_i(CC) = 4.3 V to 0.7 V; input −
fall time at pin 6:
t_f(CC) = 2 ns; note 5; Fig.7
V_i(CC) = 0.7 V to 4.3 V; input −
rise time at pin 6:
t_r(CC) = 2 ns; note 5; Fig.7
90% to 10% amplitude;
−
input fall time at pin 6:
t_f(CC) = 2 ns; note 5; Fig.7
7
20
ns
15
25
ns
6
15
ns
t_r(C)
rise time of voltage output
10% to 90% amplitude;
−
6
15
ns
waveform
input rise time at pin 6:
t_r(CC) = 2 ns; note 5; Fig.7
1997 Nov 26
8