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参数资料
| 型号： | K142 |
| 厂商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Very High-Speed Switching Applications |
| 中文描述： | 极高速开关应用 |
| 文件页数： | 2/4页 |
| 文件大小： | 43K |
| 代理商： | K142 |
MK1422
OPL3/4+Codec Portable Clock Source
MDS 1422 B
2
Revision 080698
Printed 11/15/00
Integrated Circuit Systems525 Race StreetSan JoseCA95126(408)295-9800telwww.icst.com
Number
1
2
3
4
5
6
7
8
Key: I = Input, O = output, P = power supply connection
Name
X1/ICLK
VDD
GND
16.9M
24.6M
33.9M
PD
X2
Type
I
P
P
O
O
O
I
O
Description
Crystal Connection. Connect to a 14.318 MHz crystal or clock.
Connect to +5V.
Connect to ground.
16.9344 MHz clock output for stereo codec.
24.576 MHz clock output for stereo codec.
33.868 MHz clock output for OPL4.
Power Down. Shuts off entire chip when low. All clock outputs stop low.
Crystal Connection to a 14.318 MHz crystal, or leave unconnected for clock input.
Pin Descriptions
Pin Assignment
1
8
2
3
4
7
6
5
X1/ICLK
VDD
GND
16.9M
X2
PD
33.9M
24.6M
14.318 MHz in
Pin 1
33
(optional)
2
3
5
6
7
0.1μF
16.9MHz out
24.6MHz out
G
V
33
(optional)
Suggested Layout
4
8
External Components/Crystal Selection
A minimum number
of external components are required for proper oscillation. For a crystal input, one
22pF load capacitor should be connected to each of the X1 and X2 pins and ground, and a parallel
resonant 14.318 MHz, 16pF load, crystal is recommended. Load capacitor values near these are acceptable,
as is a series resonant crystal, but either will result in frequencies which are further off of the target
frequency. For a clock input, connect to X1 and leave X2 unconnected. A decoupling capacitor of 0.1μF
should be connected between VDD and GND, and 33
terminating resistors may be used on the clock
outputs.
33
(optional)
33.9MHz
out
PD
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