This part is a kind of semiconductor called BA5941FP.

Function of this product has 4-channel BTL driver for CD players.

Manufacturers : Rohm

Image and pinout :

Some of the text within the PDF file :

Optical disc ICs 4-channel BTL driver for CD players BA5941FP The BA5941FP contains a 4-channel BTL driver for CD player motors and actuators. Perfect for compact applications with the use of the HSOP 28-pin package. FApplications CD players, CD-ROM FFeatures 1) 4-channel BTL driver. 2) Perfect for compact applications with the use of the HSOP 28-pin power package. 3) Wide dynamic range (4.8V (Typ.) when VCC = 8V and RL = 8Ω). FAbsolute maximum ratings (Ta = 25_C) 4) 5) 6) 7) Internal thermal shutdown circuit. Gain is adjustable with externally connected resistor. Internal multi-purpose operational amplifier. External mute pin enables the muting of the output current. FRecommended operating conditions (Ta = 25_C) 624 Optical disc ICs FBlock diagram BA5941FP FPin descriptions 625 [ ... ]

BA5941FP PDF Datasheet Download