ADM8513X-AD-T-1 Infineon Technologies, ADM8513X-AD-T-1 Datasheet - Page 85

• Manufacturer Part Number: ADM8513X-AD-T-1
• Description: IC CTRLR USB TO EHTERNET 48-LQFP
• Manufacturer: Infineon Technologies

Specifications of ADM8513X-AD-T-1

• Controller Type: Ethernet Controller (LAN)
• Interface: USB
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 150mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ADM8513XADT1X; ADM8513XADT1XP; SP000077769

Trace routing
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Figure 9
Figure 10
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Data Sheet
Keep USB differential pair data signal D+ and D-:
– Trace width should be as wide as possible.
– Make D+ and D- traces route at the same signal plane and not pass through the other plane.
– Inhibit crossover on D+ and D-
– The termination resistance (R2,R3) and decoupling capacitors (C1,C2) should be closed to ADM8513/X.
– D+ and D- Signal trace length should be equal and as short as possible.
Arrangement Tx and Rx trace
– Tx+/- and Rx+/- trace avoid right angle and round angle >90 degree, suggested.
– Trace width must be wide and should be wider than 8 mils.
– Signal trace length between Tx+/- differential pairs should be crossed and have equal length.The total length
– Make Tx and Rx trace route at the same signal plane and not pass through the other plane.
– Every differential pairs as cross as possible, but no less than 8 mils and space should be almost equal.
– Keep space large between Tx and Rx differential pairs, even separated ground planes underneath Tx and
– Away from clock and power traces.
– If Tx routed trace must cross, the trace can be swapped between chip and transformer, and transformer to
Digital signal should be away from analog signal and Vcc traces. If you can't avoid this situation, analog signal
or Vcc trace should cross over 90 degree at other plane.
should be no longer than 2 cm. The same requirement applies to Rx+/- also.
Rx signal pairs.
RJ45,too.
Trace Routing 1
Trace Routing 2
Bad
85
Good
Appendix Layout Guide
Rev. 1.21, 2005-12-05
Data Sheet
ADM8513