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Direct Conversion Transmitter


I have a TI 37J84 DAC EVM card.    This has 4 DAC outputs so I can generate baseband differential I,Q PSK signals.  

My question is: What IQ modulator EVM card should I get to implement a direct conversion transmitter?    

The big issue, as you know. is lowering the DC offset so that the carrier does not appear at the RF output.

Any ideas please?


John Reyland

Rockwell Collins, Inc

Cedar Rapids, IA