DatasheetQ Logo
Electronic component search and free download site.
Transistors,MosFET ,Diode,Integrated circuits

MTV112AV View Datasheet(PDF) - Myson Century Inc

Part Name
Description
Manufacturer
MTV112AV Datasheet PDF : 20 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
MYSON
TECHNOLOGY
MTV112A
(Rev 1.9)
loaded into the VCNTH/VCNTL latch. The 9-bit output value is {1/V-Freq} / {512/OSC-Freq}, updated every
VSYNC/CVSYNC period. An extra overflow bit indicates the condition of the H/V counter overflow. The
VFchg/HFchg interrupt is active when VCNT/HCNT value changes or overflows. Tables 4.2.1 and 4.2.2
shows the HCNT/VCNT value under the operations of 8MHz and 12MHz.
4.2.1 H-Freq Table
H-Freq(KHZ)
1
30
2
31.5
3
33.5
4
35.5
5
36.8
6
38
7
40
8
48
9
50
10
57
11
60
12
64
13
100
Output Value (11 bits)
8MHz OSC (hex / dec) 12MHz OSC (hex / dec)
215h / 533
320h / 800
1FBh / 507
2F9h / 761
1DDh /477
2CCh / 716
1C2h / 450
2A4h / 676
1B2h / 434
28Ch / 652
1A5h / 421
277h / 631
190h / 400
258h / 600
14Dh / 333
1F4h / 500
140h / 320
1E0h / 480
118h / 280
1A5h / 421
10Ah / 266
190h / 400
0FAh / 250
177h / 375
0A0h / 160
0F0h / 240
*1. The H-Freq output (HF10 - HF0) is valid.
*2. The tolerance deviation is + 1 LSB.
4.2.2 V-Freq Table
V-Freq(Hz)
1
56.25
2
59.94
3
60
4
60.32
5
60.53
6
66.67
7
70.069
8
70.08
9
72
10 72.378
11
72.7
12
87
Output Value (9 bits)
8MHz OSC (hex / dec) 12MHz OSC (hex / dec)
115h / 277
1A0h / 416
104h / 260
187h / 391
104h / 260
186h / 390
103h / 259
184h / 388
102h / 258
183h / 387
0EAh / 234
15Fh / 351
0DEh / 222
14Eh / 334
0DEh / 222
14Eh / 334
0D9h /217
145h / 325
0D7h / 215
143h / 323
0D6h / 214
142h / 322
0B3h / 179
10Dh / 269
*1. The V-Freq output (VF8 - VF0) is valid.
*2. The tolerance deviation is + 1 LSB.
4.3 H/V Presence Check
The Hpresent function checks the input HSYNC pulse. The Hpre flag is set when HSYNC is over 10KHz or
cleared when HSYNC is under 10Hz. The Vpresent function checks the input VSYNC pulse. The Vpre flag
is set when VSYNC is over 40Hz or cleared when VSYNC is under 10Hz. A control bit "PREFS" selects the
time base for these functions. The HPRchg interrupt is set when the Hpre value changes. The VPRchg
interrupt is set when the Vpre/CVpre value changes. However, the CVpre flag interrupt may be disabled
when S/W disables the composite function.
MTV112A Revision 1.9 05/18/2001
7/20
 

Share Link: 

datasheetq.com  [ Privacy Policy ]Request Datasheet ] [ Contact Us ]