поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

Preview PDF HTML

AS3695C датащи(PDF) 16 Page - ams AG

номер детали AS3695C
подробное описание детали  16 channel white LED controller for LCD backlight
PDF  40 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  AMSCO [ams AG]
домашняя страница  http://www.ams.com
Logo AMSCO - ams AG

AS3695C датащи(HTML) 16 Page - ams AG

Back Button AS3695C Datasheet HTML 12Page - ams AG AS3695C Datasheet HTML 13Page - ams AG AS3695C Datasheet HTML 14Page - ams AG AS3695C Datasheet HTML 15Page - ams AG AS3695C Datasheet HTML 16Page - ams AG AS3695C Datasheet HTML 17Page - ams AG AS3695C Datasheet HTML 18Page - ams AG AS3695C Datasheet HTML 19Page - ams AG AS3695C Datasheet HTML 20Page - ams AG Next Button
Zoom Inzoom in Zoom Outzoom out
 16 / 40 page
background image
AS3695C
austriamicrosystems
www.austriamicrosystems.com
Rev 1.11 / 2010-12-08
15 - 39
4.2.7.2
VCO
In VCO has an operating range between 1MHz and 2MHz. If lower clock frequencies are required the
output divider ( ODdiv ) has to be used.
4.2.7.3
Loop filter
The output of the PFD charges a loop filter which is controlling the output frequency of the VCO. The
loop filter determines the speed of the frequency lock and the remaining phase noise of the VCO output
frequency.
Example of a loop filter:
Calculation process for loop filter:
Terms:
fVCO...Desired fVCO frequency
fIN...Reference input frequency
Icp...PFC output current 0.5uA
KVCO...VCO sensitivity 2.5MHz/V
1.
Determined dividing ratio:
2.
Calculate Bandwidth BW:
3.
Calculate C1:
.
4.
Calculate R1:
.
°
5.
Calculate C0:
4.2.7.4
Calculation Examples:
Vsync
[Hz]
Resolution
[ bit ]
Fclk
[Hz]
Reg
0x61
Reg
0x62
Reg
0x63
C0
[nF]
R1
[kΩ]
C1
[nF]
50
12
204800
0xFC
0x03
0x05
18,7
510
187
60
12
245760
0xFC
0x02
0x04
17,3
459
173
100
11
204800
0xFC
0x01
0x05
9,3
510
93
100
12
409600
0xFC
0x01
0x03
9,3
510
93
120
10
122880
0xFC
0x00
0x05
13,0
306
130
120
11
245760
0x7C
0x01
0x04
8,7
459
87
120
12
491520
0x7C
0x01
0x02
8,7
459
87
200
10
204800
0xFC
0x00
0x05
4,7
510
47
200
11
409600
0xFC
0x00
0x03
4,7
510
47
200
12
819200
0xFC
0x00
0x01
4,7
510
47
240
10
245760
0xBC
0x00
0x04
4,3
459
43
240
11
491520
0xBC
0x00
0x02
4,3
459
43
240
12
983040
0xFC
0x00
0x01
3,2
612
32
400
10
409600
0x7C
0x00
0x03
2,3
510
23
400
11
819200
0x7C
0x00
0x01
2,3
510
23
400
12
1638400
0x7C
0x00
0x00
2,3
510
23
480
10
491520
0x5C
0x00
0x02
2,2
459
22
480
11
983040
0x7C
0x00
0x01
1,6
612
16
480
12
1966080
0x7C
0x00
0x00
1,6
612
16
Filt1
Filt2
C0
R1
C1



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 31 32 33 34 35 36 37 38 39 40


датащи скачать

Go To PDF Page


ссылки URL



Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   Ссылка на техническое описание    |   обмен ссыками   |   поиск по производителю
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