MTV021N24 View Datasheet(PDF) - Myson Century Inc

Part Name

Description

Manufacturer

MTV021N24

Enhanced Super On-Screen Display

Myson Century Inc 

MYSON

TECHNOLOGY

MTV021

PWMCK - Select the output options to HTONE/PWMCK pin.

=0

⇒ HTONE option is selected.

=1

⇒ PWMCK option is selected with 50/50 duty cycle and synchronous with the input HFLB.

The frequency is selected by (VCO1, VCO0) shown as Table 5.

The initial value is 0 after power up.

SELVCL - Enable auto detection for horizontal and vertical syncs input edge distorition to avoid unstable

Vsync leading mismatch with Hsync signal while the bit is set to "1". The initial value is 0 after

power up.

HSP -

= 1 ⇒ Accept positive polarity Hsync input.

= 0 ⇒ Accept negative polarity Hsync input.

VSP -

= 1 ⇒ Accept positive polarity Vsync input.

= 0 ⇒ Accept negative polarity Vsync input.

VCO1, VCO0 - Select the appropriate curve partitions of VCO frequency to voltage based on HFLB input and

horizontal resolution register (HORR). And there are different curve partitions based on differ-

ent application resister value on pin 3 (pin RP) as belows:

(i) 12K ohm:

= (0, 0) ⇒ 6MHz < Pixel rate < 12MHz

= (0, 1) ⇒ 12MHz < Pixel rate < 24MHz

= (1, 0) ⇒ 24MHz < Pixel rate < 48MHz

= (1, 1) ⇒ 48MHz < Pixel rate < 96MHz

(ii) 11K ohm:

= (0, 0) ⇒ 6.5MHz < Pixel rate < 13MHz

= (0, 1) ⇒ 13MHz < Pixel rate < 26MHz

= (1, 0) ⇒ 26MHz < Pixel rate < 52MHz

= (1, 1) ⇒ 52MHz < Pixel rate < 96MHz

(iii)10K ohm:

= (0, 0) ⇒ 7MHz < Pixel rate < 14MHz

= (0, 1) ⇒ 14MHz < Pixel rate < 28MHz

= (1, 0) ⇒ 28MHz < Pixel rate < 56MHz

= (1, 1) ⇒ 56MHz < Pixel rate < 96MHz

(iv)9.1K ohm:

= (0, 0) ⇒ 7.5MHz < Pixel rate < 15MHz

= (0, 1) ⇒ 15MHz < Pixel rate < 30MHz

= (1, 0) ⇒ 30MHz < Pixel rate < 60MHz

= (1, 1) ⇒ 60MHz < Pixel rate < 96MHz

(v)8.2K ohm:

= (0, 0) ⇒ 8MHz < Pixel rate < 16MHz

= (0, 1) ⇒ 16MHz < Pixel rate < 32MHz

= (1, 0) ⇒ 32MHz < Pixel rate < 64MHz

= (1, 1) ⇒ 64MHz < Pixel rate < 96MHz

(vi)7.5K ohm:

= (0, 0) ⇒ 8.5MHz < Pixel rate < 17MHz

= (0, 1) ⇒ 17MHz < Pixel rate < 34MHz

= (1, 0) ⇒ 34MHz < Pixel rate < 68MHz

= (1, 1) ⇒ 68MHz < Pixel rate < 96MHz

(vii)under or equal to 6.2K ohm:

= (0, 0) ⇒ 9.5MHz < Pixel rate < 19MHz

= (0, 1) ⇒ 19MHz < Pixel rate < 38MHz

= (1, 0) ⇒ 38MHz < Pixel rate < 76MHz

11/17

MTV021 Revision 5.0 6/29/1999

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