anchor.diff:   * At this point, the data is a 14 bit in-phase data signal, 
    * plus a 14 bit quadrature signal, interleaved
    * 
  - * The SDR data is a 32-bit IQ datatype
  + * The SDR data is a 32-bit OIQ datatype
    * 
    * The 32-bit data is converted from 64-bits by a Gearbox
    * 
  
positive.code: import DefaultValue::*;
  
  interface DiffOut;
     method Action _write(Bit#(1) v);
     method Bit#(1) read_p();
     method Bit#(1) read_n();
  endinterface 
  
negative.code:    
     interface PipeIn dac;
     
        method Action enq(Vector#(2, OIQ) v);
  	 outfifo.enq(v);
        endmethod
        
  