MTV130 Datasheet, PDF (13/18 Pages) List of Unclassifed Manufacturers – On-Screen Display for LCD Monitor

MYSON
TECHNOLOGY
MTV130
The encoder generates the video output to ROUT, GOUT and BOUT by integrating window color, border
blackedge, luminance output and color selection output (R, G, B) to form the desired video outputs.
3.11 PWM D/A converter
There are 4 open-drain PWM D/A outputs (PWM0 to PWM3). These PWM D/A converter outputs pulse width
are programmable by writing data to Column 23 to 26 registers of Row 15 with 8-bit resolution to control the
pulse width duration from 0/256 to 255/256. And the sampling rate is selected by (PWM1, PWM0) shown as
table 5. In applications, all open-drain output pins should be pulled-up by external resistors to supply voltage
(5V to 9V) for desired output range.
b7 b6 b5 b4 b3 b2 b1 b0
Column 23
PWMDA0
|
|
Column 26
PWMDA3
MSB
LSB
PWMDA0 - PWMDA3 - Define the output pulse width of pin PWM0 to PWM3.
PWMCK
255 0 1 2 3
PWM0
PWM1
PWM2
PWM3
m m+1
255 0 1 2 3 4
FIGURE 9. 5 Channel PWM Output Rising Edges Are Separated by One PWMCK
Column 27 ~ column 31 : Reserved.
Notes : The register located at column 31 of row 15 are reserved for the testing. Don’t program this
byte anytime in normal operation.
ROW 16
B7
b6
b5
b4
b3
b2
b1
b0
Column 0
-
R1
G1
B1
-
R2
G2
B2
R1, G1, B1 - Define the shadow color of window 1. The initial value is (0, 0, 0) after power up.
R2, G2, B2 - Define the shadow color of window 2. The initial value is (0, 0, 0) after power up.
B7
b6
b5
b4
b3
b2
b1
b0
Column 1
-
R3
G3
B3
-
R4
G4
B4
R3, G3, B3 - Define the shadow color of window 3. The initial value is (0, 0, 0) after power up.
R4, G4, B4 - Define the shadow color of window 4. The initial value is (0, 0, 0) after power up.
Revision 1.0
13/18
28/April/2000