BM54,
【ROHM Semiconductor】BM5446EFV-E2,IC AMP SPEAKER W/DSP HTSSOP-B54
BM5449MWV-E2,IC AMP D STEREO 20W UQFN056V7070
BM55,
BM57/HSP -HP-B (Heatpipe Solution),Modules Accessories BM57/HSP-HP-B
BM57B0.6-10DP/2-0.3V(51),CONN HDR 0.3MM SMD 10POS + 2PWR
BM57B0.6-10DP/2-0.3V(53),CONN HDR 0.3MM SMD 10POS + 2PWR
BM57B0.6-10DS/2-0.3V(51),CONN RCPT 0.3MM SMD 10POS + 2PWR
