Changes between Version 3 and Version 4 of Internal/USBNoise/WiBo


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Timestamp:
Jun 23, 2006, 5:17:25 PM (18 years ago)
Author:
seskar
Comment:

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  • Internal/USBNoise/WiBo

    v3 v4  
    66It is also possible to switch all Tx and Rx signals into a single antenna.
    77
    8 A.  PCB
     8=== A. PCB ===
    99
    1010The PCB is a 4.00 x 4.00” FR-4 four-layer controlled impedance stackup board manufactured by [http://www.4pcb.com/index.htm Advanced Circuits, Inc.]. 
    … …  
    1515
    1616The next copper layer down is all ground plane.  The third layer down is a signal layer with predominately vertical traces surrounded by ground plane.  The fourth or bottom layer is another signal layer with predominately horizontal traces.
     17
    1718[[Image(WiBo-lowres.jpg)]]
    18 B.  Connector J3_F and I/O
     19=== B. Connector J3_F and I/O ===
    1920 
    2021This is a 40-pin 2mm dual-inline connector which mates BiBo’s control signals, +3.3 VDC power and ground to WiBo102.