数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

TDA9109 数据表(PDF) 18 Page - STMicroelectronics

部件名 TDA9109
功能描述  LOW-COST DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
PDF  30 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA9109 数据表(HTML) 18 Page - STMicroelectronics

Back Button TDA9109 Datasheet HTML 14Page - STMicroelectronics TDA9109 Datasheet HTML 15Page - STMicroelectronics TDA9109 Datasheet HTML 16Page - STMicroelectronics TDA9109 Datasheet HTML 17Page - STMicroelectronics TDA9109 Datasheet HTML 18Page - STMicroelectronics TDA9109 Datasheet HTML 19Page - STMicroelectronics TDA9109 Datasheet HTML 20Page - STMicroelectronics TDA9109 Datasheet HTML 21Page - STMicroelectronics TDA9109 Datasheet HTML 22Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 18 / 30 page
background image
6
7
PLL1F
(Loop Filter)
R0
1.6V
6.4V
5
C0
6.4V
1.6V
0 0.875T
H TH
RS
FLIP FLOP
(1.3V < V
< 6V)
7
I0
2
4I0
I
0
Figure 9 : Details of VCO
LOCKDET
COMP1
INPUT
INTERFACE
H/HVIN
High
CHARGE
PUMP
Low
PLL
INHIBITION
VCO
76
5
PLL1F
R0
C0
PHASE
ADJUST
E2
I2C
HPOS
Adj.
OSC
Tramext
Tramext
I2C
Forced
Frequency
Lock/Unlock
Status
8
HPOSITION
1
Figure 8 : Block Diagram
OPERATING DESCRIPTION (continued)
7
PLL1F
1
µF
4.7
µF
1.8k
Ω
Figure 7
The PLL1 is internally inhibited during extracted ver-
tical sync (if any) to avoid taking in account missing
pulses or wrong pulses on phase comparator.
The inhibition is done by a switch located between
the charge pump and the filter (see Figure 8).
The VCO uses an external RC 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
thresholds of the sawtooth are 1.6V and 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 ha s to be smaller
(1 to 4.2) due to clamp intervention on the filter
lowest value.
TDA9109/SN
18/30



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com