This part is a kind of semiconductor called LA4262.

Function of this product has 2-Channel 7W Power Amplifier.

Manufacturers : Sanyo

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Some of the text within the PDF file :

Ordering number : ENA0319 Monolithic Linear IC LA4262 Overview Audio Output for Radio Cassette Recorder Two-channel 7W Power Amplifier The LA4262 is a two-channel 7W power amplifier IC. The LA4262 only requires a minimal number of external components and thus is optimal for use as the audio output power amplifier in radio cassette recorders. Functions • Output : 7W×2 (VCC = 15V, RL = 3Ω) • Standby function • Pop noise reducing function • Ripple filter • Thermal protection circuit Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Allowable power dissipation Thermal resistance Operating temperature Storage temperature Symbol VCC max Pd max θj-c Topr Tstg Conditions Rg = 0 (No signal) With a infinity large heat sink Ratings [ ... ]

LA4262 PDF Datasheet Download