Electronic Components Datasheet Search
  New Zealand  ▼
ALLDATASHEET.CO.NZ

X  

Preview PDF HTML

S12SCIV2/D Datasheet(PDF) 109 Page - Freescale Semiconductor, Inc

Part # S12SCIV2/D
Description  Device User Guide V01.18
PDF  130 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

S12SCIV2/D Datasheet(HTML) 109 Page - Freescale Semiconductor, Inc

Back Button S12SCIV2/D Datasheet HTML 105Page - Freescale Semiconductor, Inc S12SCIV2/D Datasheet HTML 106Page - Freescale Semiconductor, Inc S12SCIV2/D Datasheet HTML 107Page - Freescale Semiconductor, Inc S12SCIV2/D Datasheet HTML 108Page - Freescale Semiconductor, Inc S12SCIV2/D Datasheet HTML 109Page - Freescale Semiconductor, Inc S12SCIV2/D Datasheet HTML 110Page - Freescale Semiconductor, Inc S12SCIV2/D Datasheet HTML 111Page - Freescale Semiconductor, Inc S12SCIV2/D Datasheet HTML 112Page - Freescale Semiconductor, Inc S12SCIV2/D Datasheet HTML 113Page - Freescale Semiconductor, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 109 / 130 page
background image
MC9S12H256 Device User Guide — V01.18
A.4.3 Phase Locked Loop
The oscillator provides the reference clock for the PLL. The PLL´s Voltage Controlled Oscillator (VCO)
is also the system clock source in self clock mode.
A.4.3.1 XFC Component Selection
This section describes the selection of the XFC components to achieve a good filter characteristics.
Figure A-2 Basic PLL functional diagram
The following procedure can be used to calculate the resistance and capacitance values using typical
values for K1, f1 and ich from Table A-15.
The VCO Gain at the desired VCO output frequency is approximated by:
The phase detector relationship is given by:
ich is the current in tracking mode.
3. XCLKS =1 during reset
fosc
1
refdv+1
fref
Phase
Detector
VCO
KV
1
synr+1
fvco
Loop Divider
KΦ
1
2
∆
fcmp
Cs
R
Cp
VDDPLL
K
V
K
1 e
f
1
f
vco
–
()
K
1
1V
⋅
-----------------------
⋅
=
KΦ
i
ch KV
⋅
=
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
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