Re: [ARTIQ] proposed DAC gateware

2016-07-29 Thread Leibrandt, David R. (Fed)
@lists.m-labs.hk; Sébastien Bourdeauducq <sebastien.bourdeaud...@gmail.com>; Robert Jördens <r...@m-labs.hk>; Slichter, Daniel H. (Fed) <daniel.slich...@nist.gov>; jase...@gmail.com; camaca...@gmail.com Subject: [ARTIQ] proposed DAC gateware Dear prospective Sayma use

Re: [ARTIQ] proposed DAC gateware

2016-07-28 Thread Slichter, Daniel H. (Fed)
Two comments and a clarification: - DAC is AD9154, not AD9145 - at the bottom of page 2, it specifies f_max = 300 MHz, but I assume this is not correct? What I think should be happening is a 48-bit phase accumulator with frequency tuning word specified by f (which is a linear interpolator,