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參數資料
| 型號： | TMC57750PM |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | PLASTIC, LQFP-64 |
| 文件頁數： | 16/16頁 |
| 文件大小： | 257K |
| 代理商： | TMC57750PM |
TMC57750
1/4-INCH RS-170 TIMER
SOCS041 – JUNE 1994
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
714
500
400
300
200
100
0
Horizontal
Scale
CSYNC
(case 1)
CBLK§
HD
FI
VD
ABG
ABM,
IAG1, 2
SAG
SRG
SH
CDS
794
600
24
53
421
450
24
82
760
363
148
82
0
0§
4
127
109
111
110
112
117
4
117
4
132
140
128
138
CSYNC
(case 2)
CSYNC
(case 3)
CPOB1
CPOB2
0§
397§
117
One horizontal-scan line = 63.52
s = 794 intervals
CSYNC varies depending on which horizontal-scan line of a 262.5-line TV field is being examined.
Case 1 depicts the equalization pulses that occur during horizontal-scan lines 1, 2, 3, 7, 8, and 9.
Case 2 depicts the vertical serration pulses that occur during horizontal-scan lines 4, 5, and 6.
Case 3 applies to all remaining horizontal-scan lines.
§ CBLK makes 1/2 line transitions only on lines 262.5 and 268.5. FI makes a high-to-low transition only on line 525 and a low-to-high transition
only on line 262.5. VD makes high to low transitions only on lines 525 and 262.5. It makes low-to-high transitions only on lines 9 and 271.5.
Figure 2. Horizontal Timing
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