PRODUCT STRUCTURE AND BILLS OF MATERIAL:
'via Blog this'
Friday, February 8, 2013
PCB Design for Ethernet - ICS1893BK
Rabbit TN266
System Design Guidelines for Stellaris - Texas Instruments
Pulse_Layout Considerations v7.pdf
Key Points:
Remove planes under Ethernet Connector Transformer, ground plane maybe under the the Ethernet transformer if connector is shielded.
Keep TX and RX differential pairs separated ~ 0.050"
Avoid via stubs.
Chassis Ground.
System Design Guidelines for Stellaris - Texas Instruments
Pulse_Layout Considerations v7.pdf
Key Points:
Remove planes under Ethernet Connector Transformer, ground plane maybe under the the Ethernet transformer if connector is shielded.
Keep TX and RX differential pairs separated ~ 0.050"
Avoid via stubs.
Chassis Ground.
Thursday, February 7, 2013
Wednesday, February 6, 2013
3D Solder Paste Volume Inspection
50% of assembly defects are solder paste printing related.
Source: http://www.ipcoutlook.org/mart/52922F.shtml
Source: http://www.ipcoutlook.org/mart/52922F.shtml
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