Pin
Name
1 R Subcontrast
Control
3 G Subcontrast
Control
5 B Subcontrast
Control
2 R Input
4 G Input
6 B Input
7 Ground
8
ROSD Input
10 GOSD Input
12 BOSD Input
9
VCC
11 OSD Contrast
MC13282A
PIN FUNCTION DESCRIPTION
Equivalent Internal Circuit
Description
These pin provides a maximum of 26 dB attenuation
VCC
to vary the gain of each video amplifier separately.
5.0 V
50 k
Input voltage is from 0 to 5.0 V. Increasing the voltage
will increase the contrast level.
Vref
Clamp 5.0 V
0.1
75 Ω
10 k
1.0 k
The input coupling capacitor is used for input
clamping storage. The maximum source impedance
is 100 Ω.
Input polarity of the video signal is positive.
Nominal 0.7 Vpp input signal is recommended
(maximum 1.0 Vpp).
Ground pin. Connect to a clean, solid ground.
These inputs are standard TTL level.
VCC
80 k
60 k
VCC
5.0 V
3.5 k
Connect to 8.0 Vdc supply, ±5%. Decoupling is
required at this pin.
On Screen Display contrast control.
Input voltage is from 0 to 5.0 V. Increasing the voltage
will increase the contrast of the OSD signal.
13 Contrast
Overall Contrast Control for the three channels.
5.0 V
2.5 V
The input range is 0 V to 5.0 V. An increase of voltage
42 k
2.0 k
increases the contrast.
4
MOTOROLA ANALOG IC DEVICE DATA