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參數(shù)資料
| 型號(hào)： | 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)： | 22/30頁 |
| 文件大?。?/td> | 317K |
| 代理商： | TDA9106A |
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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
- V
CC
too low
- Xrayprotection activated
- During horizontalflyback
- I
2
C bit control (voluntary inhibitionby MCU).
Theoutputstageis composedof aNPNDarlington
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)
bipolar transistor.
Both the collector and the emittor are accessible
(seeFigure 16).
TheoutputDarlingtonisinoff-statewhenthepower
scanningtransistor is also in off-state.
The maximum output current is 20mA, and the
correspondingvoltagedropoftheoutputdarlington
is 1.1Vtypically.
It is evident that the power scanning transistor
cannot be directly driven by the integrated circuit.
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).
TDA9106A
22/30
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