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參數(shù)資料
| 型號： | TDA9106A |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | LOW COST DEFLECTION PROCESSOR FOR MULTISYNC MONITORS |
| 中文描述： | 低成本多頻監(jiān)聽音箱偏轉(zhuǎn)處理器 |
| 文件頁數(shù)： | 23/30頁 |
| 文件大?。?/td> | 317K |
| 代理商： | TDA9106A |
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OPERATINGDESCRIPTION
(continued)
Figure 18
Horizontal Flyback
Internal Trigged
Horizontal Flyback
Horizontal Focus
Cap Sawtooth
Horizontal Dynamic
Focus Parabola
Output
4.7V
2V
2V
400ns
Moire Output
9
II.6 - Horizontal Dynamic Focus
TDA9106A delivers an horizontal parabola wave
form on Pin17. This parabola is performed from a
sawtoothin phasewithflybackpulse.Thissawtooth
is present on Pin 16 where the horizontal focus
capacitoris the sameas C0 to obtain a controlled
amplitude(from 2 to 4.7V typically).
Symmetry(keystone)andamplitudeareI
2
Cadjust-
able (see Figure 18).This signal has to be con-
nected to the CRT focusing grids and mixed with
verticaldynamic focus.
II.7 - MoireOutput
The moire output is intented to correct a beat
between horizontal video pixel period and actual
CRTpixel width.
Themoiresignalis acombinationof Horizontaland
Verticalfrequencysignals.
To achieve a moire cancellation, it has to be con-
nected to any point on the chassis controlling the
horizontalposition.Werecommendtointroducethis
H
V
MOIRE
H
V
MOIRE
ODD FRAME
EVEN FRAME
9
Figure 20 :
Moire Output Waveform
23
Ck
D
Q
Q
Rst
H-FLY
Ck
D
Q
Q
Monostable
V-SYNC
9
Figure 19 :
Moire FunctionBlock Diagram
TDA9106A
23/30
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| TDF1779 | DUAL 2-A SOURCE DRIVER |
| TDF1779A | DUAL 2-A SOURCE DRIVER |
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