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| − | <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>Adjust the height of the PoE module to 1.02". The thickness of the PoE module is correct at 63 mils.</li> |
| − | <li>The 14 pin connector that is just above the DSP and SRAM needs to be moved to the right only about 100-150 mils. It looks like there may be some interference with the panel mounted RJ45 connector when the box is assembled.</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 14 pin connector that is close to the DSP and SRAM would work best if that were the I2S connector - it lines up well with the audio satellite board. The JTAG connector will be OK on the right side of the board. I can't tell from the mechanical drawing which is which, but the 14 pin connector on the left side of the board should be the I2S connector and the 14 pin connector on the right side should be the JTAG.</li> | |
| − | <li>Move the rotary switch (on the back of the board) down and to the left about 200 mils (as viewed from the back of the board). I would like to get a little more separation between the rotary switch and the RJ45 connector.</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
