參數(shù)資料
型號: AX88190P
廠商: ASIX Electronics Corporation
英文描述: 10/100BASE PCMCIA Fast Ethernet MAC Controller
中文描述: 一個10/100Base的PCMCIA快速以太網(wǎng)MAC控制器
文件頁數(shù): 37/41頁
文件大?。?/td> 465K
代理商: AX88190P
AX88190 PCMCIA Fast Ethernet MAC Controller
ASIX ELECTRONICS CORPORATION
37
Appendix B: Application Note 2
B.1 Advance Application for Using Crystal
Date: May 21, 1999
Condition: In short cable, AX88190 +AH 101 Phyceiver can’t link to BCM 5308
Switch.
Conclusion: 1. After measuring and verifying, we found it’s relevant to clock
source.
2. We ascertain the problem is caused by matching issues between
crystal and capacitor.
Solution: Change the value of capacitors beside crystal as below:
Note: The capacitors may be various depend on the specification of crystal.
While designing, please refer to the circuit provided by crystal supplier.
XIN
XOUT
Y1
25MHZ
R4
C22
18p
C23
18p
2M
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