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ICS810001-21

FEMTOCLOCKS™ DUAL VCXO VIDEO PLL

Integrated Circuit Systems 

Integrated

Circuit

Systems, Inc.

PRELIMINARY

ICS810001-21

FEMTOCLOCKS™ DUAL VCXO VIDEO PLL

APPLICATION INFORMATION

EXAMPLE LOOP FILTER COMPONENT VALUES FOR VARIOUS VCXO DIVIDER SELECTIONS

VCXO PLL Divider

Selection

FB Divider (MValue)

Loop Filter Component Selection

Rset Iset

Rs

Cs

Cp

(kΩ) (µA) (kΩ) (µF) (pF)

VCXO PLL Performance

VCXO PLL

Loop BW (Hz/-3dB)

Damping Factor

2.2 500 261 0.033 1500

200

1.4

1000, 1001

4.4 250 261 0.068 3300

100

1.4

4.4 250 53.6 1.5 68000

20

1.4

2.2 500 499 0.033 1500

100

1.3

4000, 4001

2.2 500 261 0.15 6800

50

1.5

2.2 500 105

1 33000

20

1.6

91, 92

4.4 250 23.2

1 33000

100

1.6

600

170

1.8

800

125

1.6

960

105

1.5

4.4 250 261 0.068 2200

1000, 1000

100

1.4

1726, 1728

58

1

4000, 4004

27

0.7

1726, 1728

2.2 500 1000 0.01 470

100

1.5

Loop Filter

Example

Number

1

2

3

4

5

6

7

8

9

810001BK-21

www.icst.com/products/hiperclocks.html

11

REV. A AUGUST 12, 2005

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