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參數(shù)資料
| 型號： | ICS1493K-17LFT |
| 廠商： | INTEGRATED CIRCUIT TECHNOLOGY CORP |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | 48 MHz, PROC SPECIFIC CLOCK GENERATOR, QCC20 |
| 封裝： | 4 X 4 MM, ROHS COMPLIANT, QFN-20 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 217K |
| 代理商： | ICS1493K-17LFT |
Clock Synthesizer for Portable Systems
MDS 1493-17 A
2
Revision 101005
Integr ated Circuit System s
● 525 Ra ce Stree t, Sa n Jose, CA 951 26 ● te l (4 08) 297 -1201 ● www.icst.com
ICS1493-17
PRELIMINAR Y INFORMA T ION
Pin Assignment
Output Enable Table
Note: OE pin has an internal pull-down resistor.
Pin Descriptions
1
GND
20-pin QFN
48M
VDDO
OE
VDD
GND
VDD
37M
VDDO
22/24M
X1
X2
VD
D
27M
GN
D
22M
GN
D
SC
K
SD
A
TA
GN
D
6
11
16
OE
Clock Output State
0
Normal Operation
1
Hi-Z
Pin
Number
Pin
Name
Pin
Type
Pin Description
1
GND
Power
Connect to ground.
2
48M
Output
48 MHz clock output. High impedance state when OE=1.
3
VDDO
Power
Output voltage level. Connect to +1.8 or 2.5 V. Same voltage as pin
12.
4OE
Input
Output Enable pin. See table above. Internal pull-down resistor.
5
VDD
Power
Connect to +1.8 V.
6
22M
Output
22.5792 MHz clock output. Internal pull-down. High impedance state
when OE=1.
7
GND
Power
Connect to ground.
8
SCK
Input
I2C bus clock pin. Internal pull-up resistor.
9
SDATA
Input
I2C bus data pin. Internal pull-up resistor.
10
GND
Power
Connect to ground.
11
22/24M
Output
Selectable output clock of either 22.5792M or 24.576M. See table.
Internal pull-down. High impedance state. OE=1.
12
VDDO
Power
Output voltage level. Connect to +1.8 or 2.5 V. Same voltage as pin 3.
13
37M
Output
Spread spectrum 37 MHz clock output. See table. Internal pull-down.
High impedance state when OE=1.
14
VDD
Power
Connect to +1.8 V.
15
GND
Power
Connect to ground.
16
GND
Power
Connect to ground.
17
27M
Output
27 MHz reference clock output. Internal pull-down. High impedance
state when OE=1.
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