1 / 8

Highlights and Testing Results for Board 1 and Board 2

This report summarizes the highlights of the last week's activities, including the replacement of the connectorized PD on the current board, construction of a second board with a connectorized PD, and repeated baseline and attenuation tests. Results of the tests, including discouraging RX results with 5dB attenuation and improved results for Board 2, are discussed. The report also outlines future plans to explore the source of poor attenuated performance and perform tests on Board 1 with the XYZ stage to determine if the unconnectorized PD improves performance.

robertdking
Download Presentation

Highlights and Testing Results for Board 1 and Board 2

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Presenter: Curtis GrensApril 3, 2003

  2. Highlights of the Last Week • Connectorized PD on current board replaced with unconnectorized PD • Second board constructed, uses connectorized PD • Baseline and attenuation tests repeated on second board.

  3. Attenuation Tests • Discouraging RX results with 5dB attenuation. • PD sensitivity? Damaged TIA? Cross-talk? Other? Board 1 RX: PRBS7 at 0dB Board 1 RX: PRBS7 at 5dB

  4. Board number 2. • Board number 2 (right): Same design, same PD- new construction, new TIA. • Board number 1 (left): Unconnectorized PD installed.

  5. Continued Testing • Successful baseline test results for Board 2. Board 2 RX: PRBS7 at 0dB (with TX on) Board 2 TX: PRBS7 at 0dB

  6. Continued Testing • Improved 5dB attenuation results for Board 2: • (RX shows improved attenuated performance with TX operating!!) Board 2 RX: PRBS7 at 5dB (TX unconnected) Board 2 RX: PRBS7 at 5dB (TX CONNECTED) Board 2 Loopback: PRBS7 at 5dB • Based on [left] figure, damaged TIA ruled out. PD? Cross-talk? • Board number 1: still awaiting functional XYZ stage.

  7. Plans for the Coming Week • Further explore source of poor attenuated performance. • Perform attenuation tests on Board 1 with the XYZ stage- determine if the superior unconnectorized PD improves attenuated performance. • Determine if/which portions of the design could be modified/improved for finalized design.

More Related