Silicon DAA 16-pin SOIC MD1724 11VC-B SAFE 44-pin VQFP (formerly CL-MD1724T) MD5628D-L-A DSP (HaM) 100-pin LQFP (replaces discontinued CL-MD5620DT-QC-CF) MD5628D-L-B DSP (HaM) MD5630US-L101 = MD5628D-L-A + Silicon DAA/Codec [data/fax, FCC] MD5630GL-L101 = MD5628D-L-A + Silicon DAA/Codec [data/fax, CTR21] MD5630AM-L101 = MD5628D-L-A + MD1724 11VC-B [d/f/v, FCC, CTR21] MD5631US-L101 = MD5628D-L-A + MD1724 11VC-B + Silicon DAA [d/f/v/sp,FCC] MD5631GL-L101 = MD5628D-L-A + MD1724 11VC-B + Silicon DAA [d/f/v/sp,CTR21] MD5631AM-L101 = MD5628D-L-A + MD1724 11VC-B + MD1724 11VC-B [d/f/v/sp,FCC,CTR21] SAFE=Sigma-Delta Analog Front End Device