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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： | 18/45页 |
| 文件大小： | 675K |
| 代理商： | TDA9115 |
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TDA9115
25/45
Figure 4. H-PLL1 filter configuration
The PLL1 is internally inhibited during extracted
vertical sync. pulse (if any) to avoid taking into ac-
count missing or wrong pulses on the phase com-
parator. Inhibition is obtained by forcing the charge
pump output to high impedance state. The inhibi-
tion
mechanism
can
be
disabled
through
PLL1Pump I2C bus bit.
The Figure 7, in its upper part, shows the position
of the VCO ramp signal in relation to input sync.
pulse for three different positions of adjustment of
horizontal position control
HPOS.
Figure 5. Horizontal PLL1 block diagram
Figure 6. Horizontal oscillator (VCO) schematic diagram
HPLL1F
9
R2
C1
C2
4
Lock
Status
PLL
INHIBITION
HPosF
SHAPER
Low
High
LOCK
COMP
CHARGE
PUMP
HPLL1F R0
C0
86
VCO
HOSC
(I2C)
HPOS
INPUT
INTERFACE
H/HVSyn
Sync
9
10
PLL1Pump
V-sync (extracted)
PLL1InhEn
(I2C)
HOscF
DETECTOR
1
Polarity
V-sync
Extracted
REF1
(pin & I2C)
(I2C)
0
PLL1
RS
Flip-Flop
CO
VHOThrHi
4 I0
I0
2
HPLL1F
I0
RO
9
+
-
(PLL1 filter)
6
HOscF
+
-
+
-
4
VHOThrLo
VHOThrLo
VHOThrHi
8
from charge pump
VHO
VCO discharge
control
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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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