MC13022A Datasheet, PDF (1/8 Pages) Motorola, Inc – Advanced Medium Voltage AM Stereo Decoder

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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.
• Operation from 6.0 V to 10 V Supply with Current Drain of 20 mA Typ
• IF Amplifier with Two Speed AGC
• Post Detection Filters that Allow Automatic Adjustable Audio Bandwidth
Control and Notch Filtering (9.0 or 10 kHz)
• Signal Quality Controlled Stereo Blend and Noise Reduction
• Noise and Co–Channel Discriminating Stop–On–Station
• Signal Strength Indicator Output for Stop Sense and/or Meter Drive
• Signal Strength Controlled IF and Audio Bandwidth
• Noise Immune Pilot Detector Needs no Precision Filter Components
• MC13025 Complementary Electronically Tuned Radio Front End
• CMOS Compatible Driver for Stop Sense
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
Decoder
I
Q
Pilot
Detector
Yes/No
Signal
Level
Quality
Detector
Fast AGC Control
L
Post Det
R
Filter
Blend, COSθ,
Fast–Lock
Conrol
Left Audio
Right Audio
Pilot Lamp
Signal
Strength
Control of
Audio Filters
CMOS
(Logic)
MC13022A
C–QUAM ADVANCED
MEDIUM VOLTAGE
AM STEREO DECODER
SEMICONDUCTOR
TECHNICAL DATA
28
1
P SUFFIX
PLASTIC PACKAGE
CASE 710
28
1
DW SUFFIX
PLASTIC PACKAGE
CASE 751F
(SO–28L)
PIN CONNECTIONS
Env Det 1
Decoder Input 2
Ref 3
AGC 4
IF Input 5
SS 6
Filtered Left Out 7
Left Notch In 8
Feedback 9
Unfiltered Lout 10
Unfiltered Rout 11
Feedback 12
Right Notch In 13
Filtered Right Out 14
28 I Det
27 L–R Det
26 Q Out
25 VCC
24 Loop Filter
23 Blend
22 GND
21 Stereo Lamp
20 Osc Feedback
19 Osc In
18 Pilot Det In
17 I Pilot
16 Q Pilot
15 CMOS SS Out
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range Package
MC13022AP
Plastic Power
MC13022ADW ^{TA = – 40° to +85°C} SO–28L
This document contains information on a new product. Specifications and information herein
ar_Me s_Oub_Tje_Oct_Rto_Oc_Lha_Ang_Ae _Nwi_Ath_Lou_Ot n_Goti_Ic_Ce. _{DEVICE DATA}
© Motorola, Inc. 1996
Rev 1
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