DJM700 Digital out to 3.5mm recorder input

HI, this will sound like a noob question, but what cable do I need to record from my DJM 700 to a Tascam recorder, which has a 3.5mm input ?

I first tried the RCA Record out from the mixer into the Tascam recorder and couldn't get an input signal on the recorder - I'm guessing that's because it's an analog out ?

So I believe I need to use the Digital Out on the mixer into the 3.5mm input on the recorder - Can anyone recommend a cable please ?

Thanks in advance