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DAC80504: no output when register are default state

Part Number: DAC80504

Hi Team

Hope can get your support for below questions.

Customer found there is no output when they input any data through SPI interface.  they don't change any register which all are in default state after power-on, and we checked input date frame, the waveform and sequence looks good.

Can you help to give some your insight for this question? if customer need configure some register before input data?

Thanks a lot