MTV003 View Datasheet(PDF) - Myson Century Inc
Part Name
Description
Manufacturer
MTV003 Datasheet PDF : 13 Pages
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MYSON
TECHNOLOGY
MTV003N
(MTV003)
for each converter by setting the corresponding register.
3.3 SYNC Processor
The sync processor contains the following functions: polarity detection, presence detection, H-Freq counter,
V-Freq counter and sync signal separation for input SYNC sources (HS and VS). It can be programmed to
change the detected polarity status and output polarity of SYNC pins (HBLANK and VBLANK) by using the
command interface. The timing diagrams of sync processing are shown as Fig. 2 in section 8.0. The internal
SYNC signals (Hsync and Vsync) are extracted from different sources according to the following modes of
operation.
Mode
1 Separate(H+V)
2 Composite(H/V)
3 Suspend
4 Off
VS
present
not present
present
not present
HS
present
present
not present
not present
Comment
HS = H or H/V sync
HS= H/V sync
-
-
3.4 H-Freq Table
After the "start H-Freq count" command is issued over 10 ms (for 15.7KHz) and HCFF(H-Freq Count Finished
Flag) is set High, the H-Freq output (HF9 - HF0) is valid. The output value of H-Freq is calculated using the
following formula:
output value = [(1/fHfreq(KHz)) x 64 x 4000] / 16
H-Freq(KHz)
1 15.7
2 18.7
3 21.8
4 30
5 31.5
6 33.5
7 35.5
8 36.8
9 38
10 40
11 48
12 50
13 57
14 60
15 64
16 100
Output value hexadecimal 11 bits decimal
3FB
1019
357
855
2DD
733
215
533
1FB
507
1DD
477
1C2
450
1B2
434
1A5
421
190
400
14D
333
140
320
118
280
10A
266
0FA
250
0A0
160
Tolerance (%)
0.0981354
0.1169591
0.1364256
0.1876172
0.1972386
0.2096436
0.2222222
0.2304147
0.2375297
0.2500000
0.3003003
0.3125000
0.3571428
0.3759398
0.4000000
0.6250000
3.5 V-Freq Table
After the "start V-Freq count" command is issued over 120 ms (for 50HZ) and VCFF (V-Freq Count Finish Flag)
is set High, the V-Freq output (VF8 - VF0) is valid. The output value of V-Freq is calculated according to the
following formula:
output value = [(4/fVfreq(Hz)) x 4000000] / (64 x 16)
MTV003 Revision 2.3 07/01/1998
4/13
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