MTV118 데이터 시트보기 (PDF) - Myson Century Inc
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MTV118 Datasheet PDF : 30 Pages
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MYSON
TECHNOLOGY
MTV118
= 0 ⇒ Accepts negative polarity Hsync input.
VSP - = 1 ⇒ Accepts positive polarity Vsync input.
= 0 ⇒ Accepts negative polarity Vsync input.
PWM1, PWM0 - Selects the PWMCK output frequency.
= (0, 0) ⇒ XIN frequency /8
= (0, 1) ⇒ XIN frequency /4
= (1, 0) ⇒ XIN frequency /2
= (1, 1) ⇒ XIN frequency /1
The initial value is 0, 0 after power-up.
Notes : When XIN is not present, don't write data in any address. If data is written in any address, a
malfunction may occur.
TABLE 4. PWMCK Frequency and PWMDA Sampling Rate
(PWM1, PWM0)
( 0, 0 )
( 0, 1 )
( 1, 0 )
( 1 ,1 )
PWMCK Freq.
XIN frequency /8
XIN frequency /4
XIN frequency /2
XIN frequency /1
PWMDA sampling rate
XIN frequency /(8 * 256)
XIN frequency /(4 * 256)
XIN frequency /(2 * 256)
XIN frequency /(1 * 256)
3.10 PWM D/A Converter
There are 8 open-drain PWM D/A outputs (PWM0 to PWM7). The PWM D/A converter output pulse
width is programmable by writing data to columns 19-26 registers of row 15 with 8-bit resolution to con-
trol the pulse width duration from 0/256 to 255/256. The sampling rate is selected by PWM1, PWM0 as
shown in table 4. In applications, all open-drain output pins should be pulled up by external resistors to
supply voltage (5V to 9V) for the desired output range.
ROW 15
b7 b6 b5 b4 b3 b2 b1 b0
Column 19
PWMDA0
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Column 26
PWMDA7
MSB
LSB
PWMDA0 - PWMDA7 - Defines the output pulse width of pins PWM0 to PWM7.
3.11 Color Encoder
The decoder generates the video output to ROUT, GOUT and BOUT by integrating window color, bor-
der blackedge, luminance output and color selection output (R, G, B) to form the desired video outputs.
4.0 ABSOLUTE MAXIMUM RATINGS
DC Supply Voltage(VDD,VDDA)
Ground Voltage
Storage Temperature
Ambient Operating Temperature
-0.3 to +7 V
-0.3 to VDD+0.3 V
-65 to +150 oC
0 to +70 oC
11/15
MTV118 Revision 2.0 01/01/1999
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