This part is a kind of semiconductor called LA1824.

Function of this product has Single Chip Tuner IC for Use in Radio/Cassette Products with Manual Tuning.

Manufacturers : Sanyo Semicon Device

Image and pinout :

Some of the text within the PDF file :

Ordering number : ENN*6855 LA1824 Monolithic Linear IC LA1824 Single Chip Tuner IC for Use in Radio/Cassette Products with Manual Tuning Preliminary Overview Package Dimensions The LA1824 is a single-chip tuner IC that incorporates unit : mm FM/AM and MPX circuits. 3067A The built-in MPX-VCO allows this IC to be adjustment free and to require no external components. [LA1824] 21.0 Features • • 24 13 7.62 6.4 • • • Functions (0.71) 0.48 1.78 : RF amplifier, mixer, oscillator, IF amplifier, detector, signal meter, tuning indicator. AM : RF amplifier, mixer, oscillator (with ALC), IF amplifier, detector, AGC, tuning indicator. MPX : PLL stereo decoder, stereo indicator, VCO on chip, forced monaural. FM 0.95 SANYO : DIP-24S(300mil) Specifications Maximum Ratings at Ta = 2 [ ... ]

LA1824 PDF Datasheet Download