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參數(shù)資料
| 型號： | TDA9109 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | LOW-COST DEFLECTION PROCESSOR FOR MULTISYNC MONITORS |
| 中文描述： | 低費用偏轉(zhuǎn)處理器多同步監(jiān)測儀 |
| 文件頁數(shù)： | 18/30頁 |
| 文件大小： | 266K |
| 代理商： | TDA9109 |
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6
7
PLL1F
(Loop Filter)
R0
1.6V
6.4V
5
C0
6.4V
1.6V
0 0.875T
H
T
H
RS
FLIP FLOP
(1.3V < V
< 6V)
7
I
0
2
4 I
0
I
0
9
Figure 9 :
Detailsof VCO
LOCKDET
COMP1
INPUT
INTERFACE
H/HVIN
High
CHARGE
PUMP
Low
PLL
INHIBITION
VCO
7
6
5
PLL1F
R0
C0
PHASE
ADJUST
E2
I
2
C
HPOS
Adj.
OSC
Tramext
Tramext
I
2
C
Forced
Frequency
Lock/Unlock
Status
8
HPOSITION
1
9
Figure 8 :
Block Diagram
OPERATINGDESCRIPTION
(continued)
Figure 7
7
PLL1F
1
μ
F
4.7
μ
F
1.8k
9
ThePLL1is internallyinhibitedduringextractedver-
tical sync (if any) to avoidtakingin accountmissing
pulses or wrong pulses on phase comparator.
The inhibitionis done by a switchlocated between
the charge pump and the filter (see Figure 8).
The VCO usesan externalRC network. It delivers
a linear sawtooth obtained by the charge and the
discharge of the capacitor, with a current propor-
tional to the current in the resistor. The typical
thresholdsof the sawtoothare 1.6Vand 6.4V.
The control voltage of the VCO is between 1.33V
and 6V (see Figure 9). The theorical frequency
range of this VCO is in the ratio of 1 to 4.5. The
effective frequency range has to be smaller
(1 to 4.2) due to clamp intervention on the filter
lowest value.
TDA9109/SN
18/30
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA9109A | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC MONITOR |
| TDA9109N | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW-COST DEFLECTION PROCESSOR FOR MULTISYNC MONITORS |
| TDA9109S | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW-COST DEFLECTION PROCESSOR FOR MULTISYNC MONITORS |
| TDA9109SN | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW-COST DEFLECTION PROCESSOR FOR MULTISYNC MONITORS |
| TDA9110 | 制造商:STMicroelectronics 功能描述:TDA9110 - Bulk |
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