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參數(shù)資料
| 型號： | TA1383AFG |
| 廠商： | Toshiba Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | NTSC Chroma Decoder, Multi-Point Scan Sync Processor, H/V Frequency Counter IC for Color TV |
| 中文描述： | NTSC制式色度解碼器，多點(diǎn)掃描同步處理器，水平/垂直頻率計數(shù)器集成電路彩色電視 |
| 文件頁數(shù)： | 9/47頁 |
| 文件大?。?/td> | 1010K |
| 代理商： | TA1383AFG |
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TA1383AFG
2005-09-05
9
Signal
Function
Power-On Initial Value
H-SEP LVL
Switches sync separation level of horizontal sync signal.
Switches sync separation level of horizontal sync signal input to sync input
pins.
At 525I
00: 20% 01: 27% 10: 34% 11: 40%
At 525P
00: 20% 01: 30% 10: 40% 11: 50%
Three-level sync 00: 25% 01: 35% 10: 45% 11: 55%
20%
(00)
V-SEP LVL
Switches sync separation level of vertical sync signal.
Switches sync separation level of vertical sync signal input to sync input pins.
At 525I
00: 40% 01: 50% 10: 60% 11: 70%
At 525P
00: 20% 01: 30% 10: 40% 11: 50%
Three-level sync 00: 25% 01: 35% 10: 45% 11: 55%
40%
(00)
D-SY2 SEP LVL
Switches sync separation level of D-SYNC2 IN (pin 6).
Switches sync separation level of sync signal input to pin 6.
00: 20% 01: 30% 10: 40% 11: 50%
20%
(00)
AFC-MODE
Switches AFC gain.
Switches AFC gain setting mode.
000: AUTO1 (normal: 0dB, at skew:
+
6dB, at noise:
12dB)
001: AUTO2 (AUTO1
+
prevention against AFC disoperation at noise
+
stabilization of AFC in weak electric field
+
ghost prevention)
010: AUTO3 (Video input mode: AUTO2
+
0dB at V-SKEW detected)
011: AUTO4 (RF input mode: AUTO2
+
0dB at V-SKEW detected, however,
12dB at normal. Also, AFC gain is not controlled by noise detection
result)
100: Forced
+
6dB
101: Forced 0dB
110: Forced
12dB
111: Forced Off (horizontal free running)
Note: Set AUTO1 to 4 according to input signal status.
Forced
+
6dB
(100)
NOISE LVL
Switches noise detection level.
Switches noise detection level. Noise is detected only in NTSC signals (525I).
Noise detection result is reflected in BUS READ and AFC-GAIN operation (as
in AUTO1 to 3 modes).
00: max 11: min
max
(00)
MONITOR
Switches MONITOR output.
Switches signal output from MONITOR OUT (pin 8).
Field identification output is valid for 525I and 1125I standard signal.
000: 1-bit DAC output (high)
001: 1-bit DAC output (low)
010: Field identification output (ODD: low, EVEN: high)
011: Noise detection output
100: V sync separation output at 525I
101: Skew detection output
110: Clamp pulse output
111: H/V-SYNC at D-SYNC2 input
DAC HIGH
(000)
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