This part is a kind of semiconductor called CXA-1191.

Function of this product has FM/AM Radio (for radio-cassette tape recorders and headphone tape recorders).

Manufacturers : Unisonic Technologies

Image and pinout :

Some of the text within the PDF file :

UTC CXA1191 FM/AM Radio DESCRIPTION LINEAR INTEGRATED CIRCUIT The UTC CXA1191 is a one-chip FM/AM radio IC designed for radio-cassette tape recorders and headphone tape recorders. SOP-28 FEATURES *Small number of peripheral components *Low current consumption (Vcc=3V) FM: lD=5.3mA (Typ.) AM: lD=3.4mA (Typ.) *Built-in FM/AM select switch *Large current of AF amplifier DIP-28 FUNCTIONS FM section RF amplifier, Mixer and OSC (incorporating AFC variable capacitor) IF amplifier Quadrature detection Tuning LED driver AM section RF amplifier, Mixer and OSC (with RF AGC) IF amplifier (with IF AGC) Detector Tuning LED driver AF section Electronic volume control FM muting Structure Bipolar silicon monolithic IC ABSOLUTE MAXIMUM RATINGS(Ta=25°C) PARAMETER Supply voltage Operating temperature S [ ... ]

CXA-1191 PDF Datasheet Download