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| − | <li>Move RJ-45 connector closer to the center of the board (about 400-500 mils from each edge). I mistakenly said to move it to the right, but I meant to the left (I was looking at the connector from the back of the box). What I want to do is get it away from the edge of the box as much as possible.</li> | + | <li>Adjust the height of the PoE module to 1.02". The thickness of the PoE module is correct at 63 mils.</li> |
| − | <li>Move JTAG connector up and to the right side to avoid internal interference</li>
| + | <li>The PoE module has components on the back that require additional clearance. Move the PoE module down the DSP board at least 200 mils to allow clearance on the top of the enclosure.</li> |
| − | <li>The PoE module clearance looks OK as long as the model on the PCB is accurate. If the board is thicker or there are components on the back side of the module, it may interfere with the box. Please double-check the accuracy of the PoE model with the data sheet to make sure we have enough clearance on both sides.</li> | |
| − | <li>It's difficult to find cable connectors like we want that are not 100 mil spacing. I found some similar that are 79 mil spacing and some that are 50 mil. The datasheets are linked below, let me know which style will work better.</li>
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Latest revision as of 14:52, 22 March 2010
General Info
Part Number: 10684
PCB Layout To-Do List
- Adjust the height of the PoE module to 1.02". The thickness of the PoE module is correct at 63 mils.
- The PoE module has components on the back that require additional clearance. Move the PoE module down the DSP board at least 200 mils to allow clearance on the top of the enclosure.
Datasheet Links
50mil x 100 mil header
79 mil header
(U1)DSP: TMS320C6424
(U17,18)DDR2 SDRAM
Implementing DDR2 PCB Layout on the TMS320C6424 DSP
(U2)NOR Flash
(U4)I2C EEPROM: 8-Lead SOIC
(U3,5,6,11,19,21)Bus Switch
(U7-9)DC-DC Converter
(U10,12,13)Supervisory Circuit
(U14,16)I2C Bus Repeater
(U15)OR Gate
(U20)Ethernet PHY Transceiver
(P3)PoE Module
(U23)Inverter
(SW2)Rotary Switch
(P1,2) Vert RJ-45
(Y1)Crystal Oscillator: CSM-8A
(Y2)Crystal Oscillator
(L3,5,7)ELL6SH type inductor
(SW1)Reset Switch
