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ICS7151 Datasheet(PDF) 2 Page - Integrated Circuit Systems

Part No. ICS7151
Description  Spread Spectrum Clock Generator
Download  8 Pages
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Maker  ICST [Integrated Circuit Systems]
Homepage  http://www.icst.com
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ICS7151 Datasheet(HTML) 2 Page - Integrated Circuit Systems

   
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Spread Spectrum Clock Generator
MDS 7151 E
2
Revision 012306
Integrated Circuit Systems, Inc.
525 Race Street, San Jose, CA 95126 tel (408) 297-1201 www.icst.com
ICS7151
Pin Assignment
Spread Direction and Percentage
Select Table
Notes:
1. The modulation rate varies with input frequency.
2. Spread will default to ON when ENS pin is left open.
Pin Descriptions
XOUT
GND
S0
VDD
S1
CKOUT
ENS
XIN
1
2
3
4
8
7
6
5
8 pin (150 mil) SOIC
S1
Pin 4
(note1)
S0
Pin 3
(note1)
Spread
Direction
Spread
Percentage (%)
0
0
Center
±1.5
0
1
Center
±0.5
10
Down
-1.0
1
1
Down
-3.0
ENS
(note 2)
Spread Spectrum
0
OFF
1
ON
Pin
Number
Pin
Name
Pin Type
Pin Description
1
XIN
Input
Resonator connection pin/clock input pin.
2
GND
Power
Connect to ground.
3
S0
Input
Select pin 0. Modulation rate setting pin.
4
S1
Input
Select pin 1. Modulation rate setting pin.
5
CKOUT
Output
Modulated clock output pin.
6
ENS
Input
Modulation enable setting pin. Internal pull-up resistor.
7
VDD
Power
Connect to +3.3 V.
8
XOUT
Output
Resonator connection pin.


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