This part is a kind of semiconductor called AN17823A.

Function of this product has Silicon Monolithic Bipolar IC.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

Prepared Checked Approved Product Specifications Ref No. Total Page Page No. A-1 9 1 AN17823A Silicon Monolithic Bipolar IC Structure Appearance Application Function SIL-9 Pin Plastic Package (Power Type with Fin) Low Frequency Amplifier BTL 4.0W x 1ch Power Amplifier with Standby Function and Volume Function A No. 1 2 3 4 5 6 7 8 Absolute Maximum Ratings Item Storage Temperature Operating Ambient Temperature Operating Ambient Pressure Operating Constant Acceleration Operating Shock Supply Voltage Supply Current Power Dissipation Symbol Tstg Topr Popr Gopr Sopr Vcc Icc PD Ratings -55 ~ +150 -25 ~ +70 1.013x105±0.61x105 9,810 4,900 Unit °C °C Pa m/s2 m/s2 Note 1 1 14.4 1.0 1.22 V A W 2 Ta=70⋅C Operating Supply Voltage Range Vcc 3.5V ~ 13.5V Note 1) The temperature o [ ... ]

AN17823A PDF Datasheet Download