I have an integrated circuit in the form as a DIN chip, and I have no clue what it is. I have tried searching for the markings on the chip, which are as follows:
Top: HDJ2100-393 937GA1925463B2WW
Bottom: TAIWAN 937GA1925463B2WW
It is a 40-pin chip. I found two of these inside of an old CD mixer. It is a Numark CD-MIX 1, and it was on what appeared to be the display system, as there were two near where the LCDs were. All I could find for a manual is the quickstart guide here, but I don't have the manual because it was basically in a giant bin of audio equipment.
Could someone tell me what this is or direct me on how to figure it out?