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TMS320C5517: we need connect tms320c5517 to other IC( with 3.3V power) , so can give us a suggestion for the level shifter being used for I2S and UART signals?

Part Number: TMS320C5517

Dear Sir:

    the structure of out circuit as below, we need connect tms320c5517(1.8V) to other IC(3.3V), so we need adding levle shifter for I2S and UART, do you has suggestiong for these two kinds level shifters? 

      Thanks....