VSC8601XKN Vitesse Semiconductor Corp, VSC8601XKN Datasheet - Page 101

• Manufacturer Part Number: VSC8601XKN
• Description: IC PHY 10/100/1000 64-EP-LQFP
• Manufacturer: Vitesse Semiconductor Corp
• Type: PHY Transceiverr

Specifications of VSC8601XKN

• Number Of Drivers/receivers: 1/1
• Protocol: Gigabit Ethernet
• Voltage - Supply: 2.5V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP Exposed Pad, 64-eLQFP, 64-HLQFP
• Case: TQFP
• Dc: 06+
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 907-1028

8.10
Revision 4.1
September 2009
High VDD33 and Low VDDIOMAC Supply
Issue: If VDD33 is set to the maximum allowed 3.3 V supply and VDDIOMAC is set to
the minimum allowed 3.3 V supply, the VSC8601 device can experience performance
issues. These issues generally occur in a lab environment and not in typical
applications.
Implications: When VDDIOMAC is set to 3.3 V, VDD33 and VDDIOMAC cannot be
sourced by two different 3.3 V supplies.
Workaround: If using VDDIOMAC in 3.3 V mode, use the same 3.3 V source supply as
the VDD33, using a proper filtering scheme. For more information, see VSC8601 Design
and Layout Guide, which is available on the Vitesse Web site at www.vitesse.com.
Design Considerations
VSC8601 Datasheet
Page 101