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參數(shù)資料
| 型號(hào)： | TDA9106 |
| 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(yè)數(shù)： | 23/30頁(yè) |
| 文件大?。?/td> | 319K |
| 代理商： | TDA9106 |
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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.7 - MoireOutput
The moire output is intented to correct a beat
between horizontal video pixel period and actual
CRTpixel width.
Themoiresignalis acombinationof Horizontaland
Vertical frequencysignals.
To achieve a moire cancellation, it has to be con-
nected to any point on the chassis controlling the
horizontalposition.Werecommendtointroducethis
“ HorizontalControlled Jitter”on therelativeground
Figure 19 :
Moire FunctionBlock Diagram
of PLL2 capacitor where this “controlled jitter” fre-
quencytype will directly affect the horizontal posi-
tion.The amplitude of the signal is I
2
C adjustable.
One point to notice is :
- in case H-Moire is not necessary in the applica-
tion, H-Moire output(Pin 2) canbe turnedto asa
5 bits digital to analog converteroutput (0.3V to
2.2VV output voltage),
- in case of no use in application,thispin must be
left high impedance(orresistor to ground).
H
V
MOIRE
H
V
MOIRE
ODD FRAME
EVEN FRAME
9
Figure 20 :
Moire Output Waveform
23
Ck
D
Q
Q
Rst
H-SYNC
Ck
D
Q
Q
Monostable
V-SYNC
9
TDA9106
23/30
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