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谁能告诉我这两个器件的主要区别？我看了一下DP83848I多了JTAG，ST开发板原理图上是DP83848，没接JTAG这些脚。我的需求是RMII、10/100M、AUTO-MDIX、LINK/ACTIVE LED，TLK105尺寸小，价格便宜，不知道是否可以替换DP83848，感觉DP83848的发热量小，不知道TLK如何。
求解答，谢谢！
Hi zhangpeng,
按你的应用，TLK105可以替换DP83848I,
form datasheet: DP83848I <270mW(typical). TLK105 <205mw phy and 275mw with center tap(typical).
两者相当。
DP83848I 多一些功能：
。IEEE 802.3u PCS, 100BASE-TX transceivers and filters• IEEE 1149.1 JTAG• Integrated ANSI X3.263 compliant TP-PMD physical sublayerwith adaptive
