Device

Operating

Temperature Range

Package

MC13022A

SEMICONDUCTOR

TECHNICAL DATA

C–QUAM ADVANCED

MEDIUM VOLTAGE

AM STEREO DECODER

ORDERING INFORMATION

MC13022AP

MC13022ADW

TA = – 40° to +85°C

Plastic Power

SO–28L

P SUFFIX

PLASTIC PACKAGE

CASE 710

28

1

(Top View)

PIN CONNECTIONS

Order this document by MC13022A/D

DW SUFFIX

PLASTIC PACKAGE

CASE 751F

(SO–28L)

28

1

722

21

20

19

18

17

16

15

8

9

10

11

12

13

14

Filtered Left Out

Left Notch In

Feedback

Feedback

Right Notch In

Filtered Right Out

GND

CMOS SS Out

Unfiltered Lout

Unfiltered Rout

Stereo Lamp

Osc Feedback

I Pilot

Q Pilot

Osc In

Pilot Det In

128

27

26

25

24

23

2

3

4

5

6

Env Det

Decoder Input

Ref

SS

I Det

AGC

IF Input

L–R Det

Q Out

Blend

VCC

Loop Filter

1

MOTOROLA ANALOG IC DEVICE DATA

Advance Information

Advanced Medium Voltage

AM Stereo Decoder

The MC13022A is designed for home and automotive AM stereo radio

applications. The circuits and functions included in the design allow

implementation of a full–featured C–QUAM

® AM stereo radio with relatively

few, inexpensive external parts. It is available in either 28–lead DIP or EIAJ

compatible wide–bodied 28–lead SOIC. Functionally, the MC13022A and

MC13022 are very similar. The MC13022A has 10 dB more audio output and

a CMOS compatible logic level output (Pin 15) for stop sense. The stop

sense/AGC function has been internally connected to the output notch filter

control.

Control and Notch Filtering (9.0 or 10 kHz)

C–QUAM is a registered trademark of Motorola, Inc.

The purchase of the Motorola C–QUAM® AM Stereo Decoder does not carry with such pur-

chase any license by implication, estoppel or otherwise, under any patent rights of Motorola

or others covering any combination of this decoder with other elements including use in a

radio receiver. Upon application by an interested party, licenses are available from Motorola

on its patents applicable to AM Stereo radio receivers.

Simplified Application

450 kHz

Low–Level

IF

IF Amp

AGC

IF

I

Q

Decoder

Post Det

Filter

L

R

Left Audio

Right Audio

Blend, COS

θ,

Fast–Lock

Conrol

Pilot

Detector

Pilot Lamp

CMOS

(Logic)

Signal

Quality

Detector

Yes/No

Level

Fast AGC Control

Signal

Strength

Control of

Audio Filters

This document contains information on a new product. Specifications and information herein

are subject to change without notice.

© Motorola, Inc. 1996

Rev 1