ax88190 ASIX Electronics Corporation, ax88190 Datasheet - Page 37

• Manufacturer Part Number: ax88190
• Description: Pcmcia 10/100m Fast Ethernet Mac Controller
• Manufacturer: ASIX Electronics Corporation

Appendix B: Application Note 2
B.1 Advance Application for Using Crystal
Condition: In short cable, AX88190 +AH 101 Phyceiver can’t link to BCM 5308
Conclusion: 1. After measuring and verifying, we found it’s relevant to clock
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.
AX88190
Switch.
2. We ascertain the problem is caused by matching issues between
source.
crystal and capacitor.
XIN
C22
18p
PCMCIA Fast Ethernet MAC Controller
Y1
25MHZ
R4
2M
37
XOUT
C23
18p
ASIX ELECTRONICS CORPORATION
Date: May 21, 1999