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参数资料
| 型号： | MB88R157A |
| 厂商： | FUJITSU LTD |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | OTHER CLOCK GENERATOR, PDSO8 |
| 封装： | 4.40 X 3.10 MM, 1.20 MM HEIGHT, 0.65 MM PITCH, PLASTIC, TSSOP-8 |
| 文件页数： | 18/28页 |
| 文件大小： | 1186K |
| 代理商： | MB88R157A |
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MB88R157A
DS04-29146-1E
25
■ CRYSTAL OSCILLATION CIRCUIT
The left hand side figure below shows the connection example about general resonator. The oscillation circuit
has the built-in feedback resistor (1 M
Ω) and oscillation stabilization capacitance (C1 and C2).
C1 and C2 value can be changeable by setting bit2 to bit8 and bit9 to bit15 in memory. It is necessary to set
suitable parameter for each resonator.
The right hand side figure below shows the connection example for the 3rd overtone oscillation crystal. It is
necessary to set the value for capacitance (C1,C2,C3) and inductance (L1) to suitable parameter for each reso-
nator.
To use an external clock signal (without using the resonator), input the clock signal to the XIN pin with the XOUT
pin connected to nothing.
Rf (1 M
Ω)
Rf (1 M
Ω)
C3
L1
C1
C2
C1
C2
XIN
pin
XOUT
pin
MB88R157A
LSI internal
MB88R157A
LSI
external
XIN
pin
XOUT
pin
3rd over-tone resonator
When using a resonator
Normal resonator
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