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DAC Suggestion for UHF TX Chain

Question asked by languer on Nov 16, 2010
Latest reply on Nov 20, 2010 by languer

Hi all,


We are looking at combining the ADF4350 and ADL5385 to create a transmit chain covering the 200MHz-400MHz frequency range. The transmit path requires a 1.2MHZ GMSK waveform.


What would be the recommended DAC(s) to go along with this lineups? There are no requirements for multi-carrier operation; and we are looking for a dual-DAC package. We are also looking at significantly oversampling to ease the anti-alias filter between the DAC and IQ-MOD (this oversampling is currently planned before the DAC, but could be moved inside the DAC if the part allowed for it). Initially, we looked at the AD9765, but not sure if this would be good enough.