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參數資料
| 型號： | 1726M11L |
| 英文描述： | Low EMI Clock Generator |
| 中文描述： | 低EMI時鐘發生器 |
| 文件頁數： | 1/7頁 |
| 文件大小： | 115K |
| 代理商： | 1726M11L |
ICS1726-11
MDS 1726-11 A
1
Revision 092905
Integrated Circuit Systems, Inc.
●
525 Race Street, San Jose, CA 95126
●
tel (408) 297-1201
●
www.icst.com
Low EMI Clock Generator
PRELIMINARY INFORMATION
Description
The ICS1726-11 generates a low EMI output clock
from a clock or crystal input. The part is designed to
dither the LCD interface clock for PDAs, printers,
scanners, modems, copiers, and others. Using ICS’
proprietary mix of analog and digital Phase-Locked
Loop (PLL) technology, the device spreads the
frequency spectrum of the output, reducing the
frequency amplitude peaks by several dB. The
ICS1726-11 offers both centered and down spread
from a high-speed clock input.
ICS offers many other clocks for computers and
computer peripherals. Consult us when you need to
remove crystals and oscillators from your board.
Features
Packaged in 8-pin SOIC/TSSOP
Provides a spread spectrum output clock
Supports flat panel controllers
Accepts a clock or crystal input (provides same
frequency dithered output)
Input frequency range of 16 to 32 MHz
Output frequency range of 16 to 32 MHz
Center and down spread
Peak reduction by 8 dB to 16 dB typical on 3rd
through 19th odd harmonics
Low EMI feature can be disabled
Includes power down
Operating voltage of 3.3 V
Advanced, low-power CMOS process
Block Diagram
PLL Clock
Synthesis
and Spread
Spectrum
Circuitry
X1
S1:0
SSCLK
2
GND
VDD
Clock Buffer/
Crystal
Ocsillator
X1/CLK
X2
External caps required for with crystal
for accurate tuning of the clock
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