MTV018 查看數據表（PDF） - Myson Century Inc
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MTV018 Datasheet PDF : 16 Pages
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MYSON
TECHNOLOGY
MTV018
FBKGC - Define the output configuration for FBKG pin. When it is set to "0", the FBKG outputs during the dis-
playing of characters or windows, otherwise, it outputs only during the displaying of characters.
B7
b6
b5
b4
b3
Column 18 TEST FBKGP PWMCK SELVCL HSP
b2
b1
b0
VSP VCO1 VCO0
TEST - = 0
=1
⇒ Normal mode.
⇒ Test mode, not allowed in applications.
FBKGP - Select the polarity of the output pin FBKG
=1
⇒Positive polarity FBKG output is selected.
=0
⇒Negative polarity FBKG output is selected.
The initial value is 1 after power up.
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 4 on page 12.
The initial value is 0 after power up.
SELVCL - Enable auto detection for horizontal and vertical syncs input edge distorition 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).
(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
11/16
MTV018 Revision 4.0 10/21/1999
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