This part is a kind of semiconductor called TA2025.

Function of this product has LOW NOISE PREAMPLIFIER FOR AUTOREVERSE CAR STEREO.

Manufacturers : Toshiba

Image and pinout :

Some of the text within the PDF file :

TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA2025P,TA2025F TA2025P / F Low Noise Preamplifier For Autoreverse Car Stereo The TA2025P, TA2025F contains dual amplifier, forward, reverse control switches and metal, normal tape equalizer control switches. Feature · High voltage gain : GVO = 100dB (typ.) (VCC = 9V, f = 1kHz) · No input coupling capacitor · Low noise (equivalent noise voltage) : VNI = 0.6µVrms (typ.) (VCC = 9V, Rg = 620Ω､ BW = 20Hz~20kHz, NAB EQ) · Low distortion: THD = 0.01% (typ.) · Operating supply voltage range: VCC (opr.) = 6~16V Block Diagram Weight DIP16−P−300−2.54A: 1.00g (typ.) SSOP16−P−225−1.00A: 0.14g (typ.) 1 2002-10-30 Application Information 1. Forward, reverse select switch (1) Threshold voltage Pin(3) is coupled to th [ ... ]

TA2025 PDF Datasheet Download