TDA4886 Datasheet, PDF (12/52 Pages) NXP Semiconductors – 140 MHz video controller with I2C-bus

Philips Semiconductors
140 MHz video controller with I²C-bus
Product specification
TDA4886
SYMBOL
PARAMETER
CONDITIONS
MIN.
t_dl5
delay between leading edges V₁₁ < 0.8 V; input pulse with −
of vertical blanking input pulse 50 ns/V; threshold for rising
and signal blanking at signal
outputs
input pulse V₅ = 1.4 V;
threshold after input clamping
pulse V₅ = 3 V; V_I(b-w) = 0.7 V;
see Fig.7
t_dt5
delay between trailing edges of V₁₁ < 0.8 V; input pulse with −
vertical blanking input pulse 50 ns/V; threshold V₅ = 1.4 V;
and internal blanking pulse
see Fig.7
Output clamping and blanking input (pin 11)
V₁₁
output clamping and blanking note 9
input signal
no blanking,
no output clamping
blanking, no output clamping
blanking, output clamping
I₁₁
input current
V₁₁ = 0.8 V
pin 11 connected to ground;
note 8
V₁₁ = −0.1 V; note 8
t_W11
width of output clamping pulse threshold V₁₁ = 3 V
Video signal inputs (channel 1: pin 6; channel 2: pin 8; channel 3: pin 10)
−0.1
2.0
3.5
−
−80
−250
1
V_i(b-w)6,8,10
positive input signal referred to
black
I_I6,8,10
DC input current
no input clamping;
V_I6,8,10 = V_{I(clamp)6, 8, 10};
T_amb = −20 to +70 °C
during input clamping;
V_I6,8,10 = V_{I(clamp)6,8,10} ±0.7 V
Signal blanking
−
0.02
±100
α_ct(blank)
crosstalk suppression from
input to output during blanking
control bit DISV = 1; f = 80 MHz 20
control bit DISV = 1;
10
f = 120 MHz
Clipping of negative input signals (measured at signal outputs)
∆V_clipp
offset during sync clipping
V_I6,8,10 = V_{I(clamp)6,8,10}; note 10; −
related to nominal colour signal see Fig.3
Contrast control; see Fig.8 and note 11
d_C
colour signal related to nominal 3FH (maximum)
−
colour signal
26H (nominal)
−
00H (minimum)
−
∆G_track
tracking of output colour
3FH to 00H; note 12
−
signals of channels 1, 2 and 3
TYP. MAX.
270 −
115 −
−
+0.8
−
2.6
−
V_P
−0.4 −
−60 −30
−200 −100
−
−
0.7 1.0
0.20 0.35
±135 ±170
−
−
−
−
−
2
4.2 −
0
−
−28 −
0.0 0.5
UNIT
ns
ns
V
V
V
µA
µA
µA
µs
V
µA
µA
dB
dB
%
dB
dB
dB
dB
1998 Nov 11
12