This part is a kind of semiconductor called AN5891K.

Function of this product has Additional Characteristics Curve Diagram.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

AN5891K Additional Characteristics Curve Diagram 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. Gv vs Freq (Bass/Treble Cut) Gv vs Freq (Bass/Treble Boost) Gv vs Freq (SuperBass) THD vs Vin CHSEP vs Vin CHSEP vs Freq Gv vs IIC Data (SuperBass) Gv vs IIC Data (Balance) Gv vs IIC Data (Bass for 50Hz) Gv vs IIC Data (Bass for 80Hz) Gv vs IIC Data (Treble for 10kHz) Gv vs IIC Data (Treble for 20kHz) Gv vs IIC Data (Balance) Vno vs IIC Data Mute vs Vin Gv vs Vin (SuperBass) Gv vs IIC Data (Bass Boost) Gv vs Freq (Bass Cut) Gv vs Freq (Treble Boost) Gv vs Freq (Treble Cut) THD vs Freq (Surround) THD vs Freq (Surround) Gv vs Freq (Surround) Gv vs Vin (Surround) Gv vs Vin (Surround) The Products Electrical Characteristics Curve described in this docum [ ... ]

AN5891K PDF Datasheet Download