Datasheet Summary
UTC KA22427 LINEAR INTEGRATED CIRCUIT
I-CHIP AM/FM RADIO IC
DESCRIPTION
UTC KA22427 is a one-chip AM/FM radio integrated circuit that is suitable for portable radio applications. It includes AM amplifier, local OSC, AM mixer, AM/FM amplifier, AM AGE, FM AGE circuit and also class b Audio Power Amplifier.
Features
- Low external ponents count.
- Wide operating voltage : 3
- 13 V.
- Internal regulated supply for constant current operation.
- DC selection of AM/FM mode.
BLOCK DIAGRAM
AM IF OUT
AM/FM IN IF bypass
HF GND
AGC bypass
AM/FM OUT
IF Detector IN
+Vcc
AM HF MIXER
AM/FM IF
AM/FM discriminato
Regulator
DIP-16
AM LO
Audio amplifier
AM local
HF...
