参数资料
型号: MK1418S
元件分类: 时钟产生/分配
英文描述: 24.576 MHz, OTHER CLOCK GENERATOR, PDSO8
封装: SOIC-8
文件页数: 2/4页
文件大小: 29K
代理商: MK1418S
MK1418/MK1420
OPL3, OPL4 + Codec Clock Source
MDS 1418/20 A
2
Revision 013098
Printed 11/15/00
MicroClock Division of ICS1271 Parkmoor Ave.San JoseCA95126(408)295-9800tel(408)295-9818fax
Number
Name
Type
Description
1
X1
I
Crystal Connection. Connect to a 14.318 MHz crystal or clock.
2
VDD
P
Connect to +5V.
3
GND
P
Connect to ground.
4
16.9M
O
16.9344 MHz clock output for stereo codec.
5
24.6M
O
24.576 MHz clock output for stereo codec.
6
33.9M
O
33.868 MHz clock output for OPL4.
7
14.3M
O
14.318 MHz clock buffered output for OPL3 or PCMCIA controller.
8
X2
O
Crystal Connection to a 14.318 MHz crystal, or leave unconnected for clock input.
Pin Descriptions for MK1420
Key: I = Input, O = output, P = power supply connection
Pin Assignments
1
8
2
3
4
7
6
5
X1
VDD
GND
16.9M
X2
14.3M
33.9M
24.6M
Suggested Layout
for MK1420
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. Values near these are acceptable, as is a series
resonant crystal, but either will result in frequencies which are slightly (up to 0.06%) different from the
ideal. For a clock input, connect to X1 and leave X2 unconnected. A decoupling capacitor of 0.1F should
be connected between VDD and GND, and 33
terminating resistors may be used on the clock outputs.
These terminating resistors are unnecessary for clock traces less than 1” (25mm).
14.318 MHz
crystal
Pin 1
33
(optional)
2
3
5
6
7
0.1F
16.9MHz out
24.6MHz out
G
V
33
(optional)
4
8
33
(optional)
33
(optional)
14.3MHz out
33.9MHz out
MK1420
MK1418
1
8
2
3
4
7
6
5
ICLK
VDD
GND
16.9M
GND
VDD
GND
24.6M
clock only
相关PDF资料
PDF描述
MK1491-06SLF 49.152 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO28
MK1491-06RLFTR 49.152 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO28
MK1491-06SLFTR 49.152 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO28
MK1492-02RLF 75 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO28
MK1492-02R 75 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO28
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