Changes between Version 4 and Version 5 of Internal/USBNoise/WiBo


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

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  • Internal/USBNoise/WiBo

    v4 v5  
    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.
    1717
    18 [[Image(WiBo-lowres.jpg)]]
     18[[Image(WiBo:WiBo-lowres.jpg)]]
     19
    1920=== B. Connector J3_F and I/O ===
    2021 
    … …  
    2526RADIO_IO_1/3/4 download programming coefficients to the MAX2829.
    2627
    27 RADIO_IO_3/4 are shared with U2 ([wiki:MM74HC595.pdf 74HC595]), an 8bit serial in parallel out shift register. 
     28RADIO_IO_3/4 are shared with U2 ([wiki:WiBo/MM74HC595.pdf 74HC595]), an 8bit serial in parallel out shift register. 
    2829U2 in turn controls five functions, namely, turn on/off of the 2GHz and 5GHz power amps, MAX2829 RXENA and TXENA signals and the MAX2829 shutdown (/SHDN).
    2930