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TDA9109SN Datasheet(PDF) 23 Page - STMicroelectronics

Part No. TDA9109SN
Description  LOW-COST DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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TDA9109SN Datasheet(HTML) 23 Page - STMicroelectronics

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EW Output
EW+ Amp
Keystone
Sidepin Amp
Parallelogram
Dynamic Focus
Sidepin Balance
Output Current
To Horizontal
Phase
V
DCMID (3.5V)
2
Vertical Ramp VOUT
V.Focus
Amp
Parabola
Generator
V
DCMID
(3.5V)
V
DCMID
(3.5V)
23
24
10
Corner
2
Figure 16 : Geometric Corrections Principle
OPERATING DESCRIPTION (continued)
III.6 - E/W
EWOUT = 2.5V + K1 (VOUT -VDCMID)+ K2 (VOUT -VDCMID)
2 +K3(VOUT -VDCMID)4
K1 is adjustable by the keystone I
2C register,
K2 is adjustable by the E/W amplitude I
2C register,
K3 is adjustable by the corner I
2C register.
III.7 - Dynamic Horizontal Phase Control
IOUT =K4 (VOUT -VDCMID)+ K5 (VOUT -VDCMID)
2
K4 is adjustable by the parallelogram I
2C register,
K5 is adjustable by the side pin balance I
2C register.
TDA9109/SN
23/30


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