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參數(shù)資料
| 型號(hào)： | TDA9111 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 偏轉(zhuǎn) |
| 英文描述： | HORIZ/VERT DEFLECTION IC, PDIP32 |
| 封裝： | SHRINK, PLASTIC, DIP-32 |
| 文件頁(yè)數(shù)： | 21/43頁(yè) |
| 文件大小： | 2538K |
| 代理商： | TDA9111 |
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TDA9111
28/43
This protection is latched; it may be reset either by
VCC switch-off or by I
2C (see Figure 14 on
2.6 Horizontal and Vertical Dynamic Focus
For dynamic focus adjustment, the TDA9111 de-
livers the sum of two signals on pin 10:
– a parabolic waveform at horizontal frequency,
– a parabolic waveform at vertical frequency.
The horizontal parabola comes from a sawtooth in
phase advance with flyback pulse middle. The
phase advance versus horizontal flyback middle is
kept constant versus frequency (about 1
s).
Symmetry and amplitude are I2C adjustable (see
Figure 15 on page 29). The vertical parabola is
tracked with VPOS and VAMP. Its amplitude can
be adjusted. It is also affected by S and C correc-
tions. This positive signal once amplified is to be
sent to the CRT focusing grids.
Because the DC/DC converter is triggered by the
HFocus sawtooth, it is recommended to connect a
capacitor to pin 9, even if HFocus is not needed.
Figure 14. Safety Functions Block Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
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| TDA9112 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC MONITOR |
| TDA9112A | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH-END I2C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC MONITOR |
| TDA9113 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC MONITOR |
| TDA9115 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC MONITOR |
| TDA9116 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC MONITOR |
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