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参数资料
| 型号： | TDA9115 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 偏转 |
| 英文描述： | HORIZ/VERT DEFLECTION IC, PDIP32 |
| 封装： | SHRINK, PLASTIC, DIP-32 |
| 文件页数： | 24/45页 |
| 文件大小： | 675K |
| 代理商： | TDA9115 |
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TDA9115
30/45
put vertical deflection drive waveform, they all
track with real vertical amplitude and position (in-
cluding breathing compensation), thus being fixed
vertically on the screen. They are also affected by
C- and S-corrections. The sum of components oth-
er than DC is affected by value in
HSIZE I2C bus
control in reversed sense. Refer to electrical spec-
ifications for value. The DC value, adjusted via
HSIZE control, is also affected by voltage on HEH-
TIn input, thus providing a horizontal breathing
compensation (see electrical specifications for val-
ue). The resulting waveform is conditionally multi-
plied with voltage on HPLL1F, which depends on
frequency. Refer to electrical specifications for val-
ue and more precision. This tracking with frequen-
cy provides a rough compensation of variation of
picture geometry with frequency and allows to fix
the adjustment ranges of I2C bus controls through-
out the operating range of horizontal frequencies.
It can be switched off by EWTrHFr I2C bus bit (off
by default).
The EW waveform signal is buffered by an NPN
emitter follower, the emitter of which is directly
routed to EWOut output, with no internal resistor to
ground. It is to be biased externally.
Figure 12. Geometric corrections’ schematic diagram
Vertical ramp
Vmid(VOut)
2
To horizontal
dyn. phase control
EWOut
KEYST
PCC
VDC-AMP
VDyCor
Tracking
with Hor
Frequency
Tracking
HEHTIn/HSize
HEHTIn
HSize
17
32
24
23
Controls:
one-quadrant
two-quadrant
(I2C)
PCAC (I
2C)
VOut
PARAL (I
2C)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA9116 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC MONITOR |
| TDA9118 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:行/场扫描处理电路 |
| TDA9141 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:PAL/NTSC/SECAM decoder/sync processor |
| TDA9143 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:I2C-bus controlled, alignment-free PAL/NTSC/SECAM decoder/sync processor |
| TDA9144 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:I2C-bus controlled, alignment-free PAL/NTSC/SECAM decoder/sync processor with PALplus helper demodulator |
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