UTCKA22427

LINEAR INTEGRATED CIRCUIT

QW-R110-002,A

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 components count.

*Wide operating voltage : 3 - 13 V.

*Internal regulated supply for constant current operation.

*DC selection of AM/FM mode.

DIP-16

BLOCK DIAGRAM

4

3

2

1

16

15

14

11

13

12

10

9

8

7

6

5

AM local

OSC

AM HF IN

HF bypass

Audio

detector

out

Audio in

Ripple

Suppression

Audio GND

Audio power

out

AM IF OUT

HF GND

AM/FM IN

IF bypass

AGC

bypass

AM/FM

OUT

IF Detector IN

+Vcc

AM HF MIXER

AM LO

AM/FM IF

AM/FM

discriminato

Audio

amplifier

Regulator

PARAMETER

SYMBOL

VALUE

UNIT

SUPPLY VOLTAGE

VCC

11

V

SUPPLY CURRENT

ICC

44

mA

POWER DISSIPATION

PD

600

mW

THERMAL RESISTANCE

RJ-A

100

°C/W

OPERATING TEMPERATURE

TOPX

-18~65

°C

STORAGE TEMPERATURE

TSTG

-40~125

°C

NOTE:Ta>25

°C, DERATE WITH 10mW/°C UNLESS SPECIFIED.