TDA4886A View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
TDA4886A Datasheet PDF : 52 Pages
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Philips Semiconductors
140 MHz video controller with I2C-bus
Product specification
TDA4886A
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
tdl5
delay between leading edges of V11 < 0.8 V; input pulse with −
270 −
ns
vertical blanking input pulse and 50 ns/V; threshold for rising
signal blanking at signal outputs input pulse V5 = 1.4 V;
threshold after input clamping
pulse V5 = 3 V; VI(b-w) = 0.7 V;
see Fig.7
tdt5
delay between trailing edges of V11 < 0.8 V; input pulse with −
115 −
ns
vertical blanking input pulse and 50 ns/V; threshold V5 = 1.4 V;
internal blanking pulse
see Fig.7
Output clamping and blanking input (pin 11)
V11
output clamping and blanking note 9
input signal
no blanking,
−0.1 −
+0.8 V
no output clamping
blanking, no output clamping 2.0 −
2.6 V
I11
input current
blanking, output clamping
V11 = 0.8 V
pin 11 connected to ground;
note 8
3.5 −
VP
V
−
−0.4 −
µA
−80 −60 −30 µA
V11 = −0.1 V; note 8
−250 −200 −100 µA
tW11
width of output clamping pulse threshold V11 = 3 V
1
−
−
µs
Video signal inputs (channel 1: pin 6; channel 2: pin 8; channel 3: pin 10)
Vi(b-w)6,8,10
II6,8,10
positive input signal referred to
black
DC input current
Signal blanking
no input clamping;
VI6,8,10 = VI(clamp)6, 8, 10;
Tamb = −20 to +70 °C
during input clamping;
VI6,8,10 = VI(clamp)6,8,10 ±0.7 V
−
0.7 1.0 V
0.02 0.20 0.35 µA
±100 ±135 ±170 µA
αct(blank)
crosstalk suppression from
control bit DISV = 1; f = 80 MHz 20
−
−
dB
input to output during blanking control bit DISV = 1;
10
−
−
dB
f = 120 MHz
Clipping of negative input signals (measured at signal outputs)
∆Vclipp
offset during sync clipping
VI6,8,10 = VI(clamp)6,8,10; note 10; −
−
2
%
related to nominal colour signal see Fig.3
Contrast control; see Fig.8 and note 11
dC
∆Gtrack
colour signal related to nominal
colour signal
tracking of output colour signals
of channels 1, 2 and 3
3FH (maximum)
26H (nominal)
00H (minimum)
3FH to 00H; note 12
−
4.2 −
dB
−
0
−
dB
−
−28 −
dB
−
0.0 0.5 dB
1998 Dec 04
12
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