This part is a kind of semiconductor called BA5938FM.

Function of this product has CD player for 4ch BTL driver.

Manufacturers : Rohm

Image and pinout :

Some of the text within the PDF file :

BA5938FM IC CD BA5938FM BA5938FM CD HSOP-M28pin 4ch BTL 4ch BTL ! CD CD-ROM ! 1) 2) HSOP-M28pin 3) 4) 5) 6) 3 ch1, 4 ! Ta=25°C ! Ta=25°C Free Datasheet http:// BA5938FM IC ! 28 27 2 D 26 2 D 25 24 23 22 21 20 19 18 2 D 17 2 D 16 15 VCC (ch1, 4) 6.7k VCC (ch3) 20k 20k FWD 6.7k REV LOGIC LEVEL SHIFT LEVEL SHIFT T. S. D VOLTAGE CTRL LEVEL SHIFT 3/8 20k 6.7k D 2 1 2 2 3 4 5 6 7 8 9 D MUTE ch4 VCC (ch2) 2 11 D 2 12 D 10 13 14 ! Free Datasheet http:// BA5938FM IC ! Ta=25°C, VCC=8V, RL=8Ω, VBIAS=2.5V Free Datasheet http:// BA5938FM IC ! 3, 20, 25 pin 6.7k 10k 1, 2, 12, 13, 17, 18, 26, 27pin 4, 24 pin 150 10k 23pin 50k 15, 16pin 50k 50k 100k 50k 50k 50k 7pin 158 19pin 126k 50k Fre [ ... ]

BA5938FM PDF Datasheet Download