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MTV003N

Microprocessor Compatible Monitor Controller

Unspecified 

MYSON

TECHNOLOGY

1.0 CONNECTION DIAGRAM

(20 PIN PDIP 300 MIL PACKAGE)

MTV003N

(MTV003)

2.0 PIN DESCRIPTIONS

Name

I/O

VSS

DA0

O

DA1

O

DA2

O

HBLANK O

VBLANK

O

X1

I/O

Pin#

1

2

3

4

5

6

7

Function

Ground (0 V).

Open-Drain PWM (Pulse Width Modulation) D/A Converter 0. The

output pulse width is programmable by writing data to Reg10 with

8-bit resolution to control the pulse width duration from 0 to 255/256.

The output frequency is 31.25KHz (or15.625KHz). In applications, the

external pull-up resistor can be connected to 12V for the desired full-

scale output.

Open-Drain PWM D/A Converter 1. See DA0. The output pulse

width is programmable by Reg11.

Open-Drain PWM D/A Converter 2. See DA0. The output pulse

width is programmable by Reg12.

Horizontal Blank. The pulse width and the delay of HBLANK vs.HS

input leading edges are programmable by Reg7 and Reg6,

respectively.

Vertical Blank. The output pulse width is programmable by Reg9.

Crystal 1. Used to interface to the oscillator. An 8MHz(or 4MHz)

crystal must be connected between this pin and pin X2. An appropriate

capacitor to Ground, whose value depends on the specified CLof the

crystal, must be connected. This pin can also be used as a direct input

when the external oscillator is used.

MTV003 Revision 2.3 07/01/1998

2/13

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