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參數(shù)資料
| 型號： | FS6131-01 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Programmable Line Lock Clock Generator IC |
| 中文描述： | 可編程線鎖定時鐘發(fā)生器IC |
| 文件頁數(shù)： | 28/39頁 |
| 文件大?。?/td> | 435K |
| 代理商： | FS6131-01 |
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28
FS6131-01
Programmable Line Lock Clock Generator IC
10.4.3
Selecting the Line-Locked/Genlock option in the
Device
Mode
block changes the program default settings. The
Reference Source
changes to the REF Pin input, and a
block appears to permit entry of the REF input frequency
in MHz. A
Desired Multiple
block allows entry of the ref-
erence frequency multiplying factor used to generate the
output frequency.
Exercise: Change the Ref Pin Frequency to 0.0315MHz,
and alter the Desired Multiple to 800. Change the Loop
Filter block to external, but leave the values for C1 and R
alone.
Click on
Calculate Solutions
. The program takes into
account all of the current screen settings and calculates
all possible combinations of Reference, Feedback, and
Post Divider values that will generate an output frequency
from the input frequency (31.5kHz) multiplied by the de-
sired multiple of 800.
A box will appear: “No solutions were found! Do you want
to retry calculations with the Check Loop Stability option
turned off” Choose
Yes
.
Another box will momentarily appear: “Calculating Solu-
tions: Press cancel to stop with the solutions calculated
so far.” A number in the box will increment for every
unique solution that is found. This example will create
eight unique solutions, which are then displayed in a win-
dow in the lower right portion of the program screen.
For best results, try to keep the PostDiv value multiplied
by the FbkDiv value from getting larger than 5000 while
running the VCO as much above 70MHz as possible. If a
tradeoff must be made, it is better to run the VCO faster
and allow the divider values to get large. Solution #4 pro-
vides a PostDiv value of 800 and a FbkDiv value of 4 for
a combined value of 3200. The VCO is running at about
100MHz.
Click on Solution #4 to highlight the row, then click on
Suggest
in the
Loop Filter
box to have the program
choose loop filter values. Suggested values for an exter-
nal loop filter are 4700pF and 47k
.
Now reselect the
Check Loop Stability
box to turn this
feature on. Clicking on
Calculate Solutions
regenerates
the same solutions provided earlier, only this time the
new Loop Filter values were used.
Example: Line Locked Mode
Figure 22: Line-Locked Screen
Clicking on Solution #4 highlights the row, and clicking on
Disp/Save Register Values
provides a window with the
final values of key settings. A click on OK then displays a
second window containing register information per the
Register Map. If the solutions are to be saved to a file,
two formats are available: a text format for viewing and a
data format for loading into the FS6131.
Clicking on
Load Solution into Hardware
(if enabled)
sends the information in an I
C format to the FS6131 via
the parallel port. Note that this option is disabled for the
Windows NT operating system.
If your operating system can support parallel port com-
munication but the connection cable is not attached, an
error message is displayed: "The FS6131 Hardware was
not detected! "Make sure that it is connected to the LPT#
printer port and that it is properly connected to a +5Volt
power supply."
Table 23: Cable Interface
Color
J1
DB25
Signal
Red
1
2, 13
SCL
White
2
3, 12
SDA
Green
3
8
ADDR
Blue
4
5
-
Brown
5
4
-
Black
6
25
GND
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| FS6131-01G | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Programmable Line Lock Clock Generator IC |
| FS6131-01G-XTD | 功能描述:時鐘發(fā)生器及支持產品 I2C PROG PLL CLK RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-56 |
| FS6131-01G-XTP | 功能描述:時鐘發(fā)生器及支持產品 I2C PROG PLL CLK RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-56 |
| FS6131-01I-XTD | 功能描述:時鐘發(fā)生器及支持產品 I2C PROG PLL CLK (IND) RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-56 |
| FS6131-01I-XTP | 功能描述:時鐘發(fā)生器及支持產品 I2C PROG PLL CLK IND RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-56 |
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