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參數(shù)資料
| 型號： | ICS604 |
| 英文描述： | Intel Graphics Clock Source |
| 中文描述： | 英特爾圖形時鐘源 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 60K |
| 代理商： | ICS604 |
ICS604
Intel Graphics Clock Source
MDS 604 A
Integrated Circuit Systems 525 Race Street San Jose CA 95126 (408)295-9800tel(408)295-9818fax
2
Revision 022499
Printed 11/14/00
PRELIMINARY INFORMATION
Pin Assignment
Pin Descriptions
Key: I = Input; O = output; XI, XO = crystal connections; P = power supply connection
1
8
2
3
4
7
6
5
X1/ICLK
VDDC
GND
14.3M
X2
VDDIO
24.576M
48M
External Components / Crystal Selection
The ICS604 requires 0.01 μF decoupling capacitors to be connected between VDDC and GND, and
between VDDIO and GND. They must be connected close to the ICS604 to minimize lead inductance.
No external power supply filtering is required for this device. A 33
terminating resistor can be used next
to the output pins when driving 50
lines. The total on-chip crystal capacitance is approximately 6 pF,
and a parallel resonant, fundamental mode crystal should be used. Crystal capacitors should be connected
from each of the pins X1 and X2 to Ground as shown in the Block Diagram on page 1. The value (in pF)
of these crystal caps should be = (C
L
-6)*2, where C
L
is the crystal load capacitance in pF. For a clock
input, connect to X1 and leave X2 unconnected (no capacitors on either).
Number
1
2
3
4
5
6
7
8
Name
X1/ICLK
VDDC
GND
14.3M
48M
24.576M
VDDIO
X2
Type
XI
P
P
O
O
O
P
XO
Description
Crystal connection for 14.31818 MHz crystal, or clock input.
Connect to +3.3V or +5V. +5 V recommended for lowest output noise (jitter).
Connect to ground.
Buffered crystal oscillator output clock.
48.0 MHz clock output for Intel graphics controller.
24.576 MHz clock output.
Connect to +3.3 V or +5 V. Cannot be greater than VDDC.
Crystal connection for 14.31818 MHz crystal. Leave unconnected for clock input.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| ICS604MT | 制造商:ICS 制造商全稱:ICS 功能描述:Intel Graphics Clock Source |
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