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參數(shù)資料
| 型號： | ICS581G-02T |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Linear Voltage Regulators for Automotive Applications; Package: PG-DSO-14; Regulator Type: single output; Output Voltage: 5V; Accuracy: 2.0 %; Max. Output Current: 150mA; Dropout Voltage: 250mV |
| 中文描述： | 零延遲無干擾時鐘復用器 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 92K |
| 代理商： | ICS581G-02T |
ICS581-01, -02
Zero-Delay Glitch-Free Clock Multiplexer
MDS 581-01, 581-02 A
Integrated Circuit Systems, Inc. 525 Race Street San Jose CA95126 (408) 295-9800tel www.icst.com
4
Revision 041100
Printed 11/14/00
A typical application for the ICS581-02 is to provide a backup clock for a system. The backup, reliable clock
would be connected to INB while the main clock would be connected to INA. If the main clock failed, the
backup clock would automatically be switched in. The following example shows the connection for this.
S0
S1
VDD
INA
INB
GND
FBIN
OE0
DIV
VDD
CLK1
CLK2
GND
OE1
CLK3
CLK4
VDD
0.01μF
0.01μF
33
In this example, the clocks are 155 MHz and so the frequency range is address 11. Both S0 and S1 are left
unconnected and so the on-chip pull-ups give the required high inputs. Similarly for OE0, OE1 and DIV. In
this example, CLK4 is used as the feedback.
External Components
The ICS581-01 and -02 require two 0.01 μF capacitors between VDD and GND, one on each side of the
chip. These must be close to the chip to minimize lead inductance. Series termination resistors of 33
can
be used on the outputs. These also should be close to the chip, with the feedback connection after the
resistor.
MAIN
BACKUP
Application Example
33
33
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