1166 - DSP Mainboard

General Info

Part Number: 10684

PCB Layout To-Do List

1. 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.
2. 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.
3. 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.
4. 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.

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