INTRODUCTION
KA22427B is a monolithic integrated circuit designed for the portable AM/FM radio or AM/FM clock radios.

FEATURE
• Portable AM/FM 1-chip radio
• Wide operating supply voltage range: VCC = 3V ~ 12V (Approximately) (Depending on the internal regulator tolerance)
• Recommended operating suply voltage: VCC = 4.5V ~ 9V

FUNCTIONS
• AM RF & MIX
• AM AGC
• AM/FM DET
• Regulator
• AM Local OSC
• AM/FM IF AMP
• Audio Power AMP
• FM AFC Control