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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 |
| 文件頁數(shù)： | 22/30頁 |
| 文件大?。?/td> | 319K |
| 代理商： | TDA9106 |
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20
21
H-DRIVE
V
CC
20
21
H-DRIVE
V
CC
9
Figure 16 :
Output stage simplified diagram,
showingthe two possibilities of
connection
The maximum output current is 20mA, and the
correspondingvoltagedropof theoutputdarlington
is 1.1Vtypically.
It is evident that the power scanning transistor
cannot be directly driven by the integrated circuit.
LOGIC
BLOCK
HORIZONTAL
OUTPUT
INHIBITION
VERTICAL
OUTPUT
INHIBITION
VERTICAL
BLANKING
OUTPUT
S
R
Q
HorizontalFlyback
0.7V
XRAY Protection
HORIZONTAL
BLANKING
OUTPUT
V
CC
Checking
V
CC
Ref
V
CC
offor I
2
C Reset
XRAY
VerticalFlyback
VerticalSync
Vertical Sawtooth Retrace
Vertical Unlock
I
2
C Rampon/off
I
2
C Driveon/off
I
2
C Blanking
I
2
C Rampon/off
I
2
C SFME
HorizontalUnlock
HorizontalFree RunningDetection
VerticalFree RunningStatus
9
Figure 17 :
SafetyFunctions Block Diagram
OPERATINGDESCRIPTION
(continued)
Aninterfacehas to bedesignedbetweenthecircuit
andthe power transistorwhichcan be of bipolaror
MOStype.
II.5 - X-RAYProtection
The activation of the X-Ray protection is obtained
by application of a high level on the X-Ray input
(Pin15> 8V).The consequenciesof X-Rayprotec-
tion are :
- inhibitionof H-Driveoutput
- activation of horizontalblankingoutput.
- activation of vertical blankingoutput.
The reset of this protection is obtained either by
V
CC
switchofforI
2
C resetby MCU(seeFigure17).
II.6 - Horizontal Dynamic Focus
TDA9106 delivers an horizontal parabola wave
form on Pin 17. This parabola is performedfrom a
sawtoothin phasewithflybackpulse.Thissawtooth
is present on Pin 16 where the horizontal focus
capacitoris the same as C0 to obtain a controlled
amplitude (from 2 to 4.7Vtypically).
Symmetry(keystone)andamplitudeareI
2
Cadjust-
able (see Figure 18).This signal has to be con-
nected to the CRT focusing grids and mixed with
vertical dynamic focus.
TDA9106
22/30
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