參數(shù)資料
型號(hào): ICS557GI-03T
英文描述: PCI-EXPRESS CLOCK SOURCE
中文描述: 個(gè)PCI - Express時(shí)鐘源
文件頁數(shù): 2/9頁
文件大?。?/td> 225K
代理商: ICS557GI-03T
PCI-E
XPRESS
C
LOCK
S
OURCE
MDS 557-03 E
2
Revision 061005
Integrated Circuit Systems
525 Race Street, San Jose, CA 95126
tel (408) 297-1201
www.icst.com
ICS557-03
Pin Assignment
Output Select Table 1(MHz)
S1
S0
0
0
0
1
1
0
1
1
Spread Selection Table 2
SS1
SS0
0
0
0
1
1
0
1
1
Pin Descriptions
1
2
3
X2
4
S1
5
6
CLK0
7
8
CLK0
GNDODA
VDDXD
OE
SS0
16
X1/ICLK
SS1
CLK1
VDDODA
15
14
13
12
11
10
9
16-pin (173 mil) TSSOP
GNDXD
S0
IREF
CLK1
CLK(1:0), CLK(1:0)
25M
100M
125M
200M
Spread %
Center ±0.25
Down -0.5
Down -0.75
No Spread
Pin
Number
1
2
3
4
5
6
Pin
Name
S0
S1
SS0
X1/ICLK
X2
OE
Pin
Type
Input
Input
Input
Input
Output
Input
Pin Description
Select pin 0. See Table1. Internal pull-up resistor.
Select pin 1. See Table 1. Internal pull-up resistor.
Spread Select pin 0. See Table 2. Internal pull-up resistor.
Crystal or clock input. Connect to a 25 MHz crystal or single ended clock.
Crystal connection. Leave unconnected for clock input.
Output enable tri-states outputs and device is not shut down. Internal
pull-up resistor.
Connect to ground.
Spread Select pin 1. See Table 2. Internal pull-up resistor.
Precision resistor attached to this pin is connected to the internal current
reference.
HCSL compliment clock output.
HCSL clock output.
Connect to voltage supply +3.3 V for output driver and analog circuits
Connect to ground.
HCSL compliment clock output.
HCSL clock output.
Connect to voltage supply +3.3 V for crystal oscillator and digital circuit.
7
8
9
GNDXD
SS1
IREF
Power
Input
Output
10
11
12
13
14
15
16
CLK1
CLK1
VDDODA
GNDODA
CLK0
CLK0
VDDXD
Output
Output
Power
Power
Output
Output
Power
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