Changes between Version 9 and Version 10 of Internal/NoiseGenerator/Hardware/WiBo


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Timestamp:
Jan 14, 2007, 4:15:47 AM (18 years ago)
Author:
anonymous
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  • Internal/NoiseGenerator/Hardware/WiBo

    v9 v10  
    33[[TOC(depth=3)]]
    44
    5 !WiBo is a RF front-end board for Orbit Noise Generator designed around a Maxim, Inc. MAX2829ETN+D radio transceiver chip. Schematic is [attachment:WiBi-103-Schematics.pdf attached]. It is manufactured as a 4.00 x 4.00” printed circuit board (PCB).
     5!WiBo is a RF front-end board for Orbit Noise Generator designed around a Maxim, Inc. MAX2829ETN+D radio transceiver chip. Schematic is [attachment:WiBi-103-Schematics.pdf attached]. BiBo’s ADC (analog-to-digital conversion) and DAC (digital-to-analog) conversion comes from an Analog Devices AD9860 MxFE processor. Digital RADIO_IO_x signals come from a Xilinx Spartan 3. It is manufactured as a 4.00 x 4.00” printed circuit board (PCB).
    66
    77== Hardware Components ==
    … …  
    4242||xxxxxxxx1||SPARE 4 output on (9th bit)||
    4343
    44 Assuming the MAX2829 has already been programmed, to enable a TX RF output the user must program a 11001xxx into U2. 
    45 
    46 NOTE: Do not turn on both the 2GHz and the 5GHz power amps at the same time!
    47 NOTE: Do not turn on both the RXENA and TXENA lines (not sure why?).
    48 
    49        
    5044=== LT1994 Baseband Amplifiers (U3xx, U4xx) ===
    5145
    … …  
    106100The 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.
    107101
    108 BiBo’s ADC (analog-to-digital conversion) and DAC (digital-to-analog) conversion comes from an Analog Devices AD9860 MxFE processor.  Digital RADIO_IO_x signals come from a Xilinx Spartan 3.
     102== Programming Notes ==
    109103
    110 RADIO_IO_1/3/4 download programming coefficients to the MAX2829.
    111 
     104Assuming the MAX2829 has already been programmed, to enable a TX RF output the user must program a 11001xxx into U2. 
     105[[BR]]
     106NOTE: Do not turn on both the 2GHz and the 5GHz power amps at the same time!
     107[[BR]]
     108NOTE: Do not turn on both the RXENA and TXENA lines.
    112109
    113110== Appendix ==