Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
CMOS IC
Error Detection and Correction ICs
for RDS Demodulators
Ordering number:ENN *3932
LC7073, 7073M
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Preliminary
Overview
The LC7073 and LC7073M are error detection and correction ICs that provide an easy interface to the LA2230 and
LA2231 radio data system (RDS) demodulators. Both devices incorporate an on-chip oscillator that connects directly
to an external ceramic resonator.
The LC7073 and LC7073M provide group synchronization, selectable error detection and correction, output clock
polarity selection, a block data start signal output and an
error output that signals error correction failures.
The LC7073 and LC7073M operate from a 5 V supply and
are available in 18-pin DIPs and MFPs, respectively.
Features
• RDS error detection and correction.
• Easy interface with LA2230 and LA2231 demodulator
ICs.
• Serial data transfer system.
• Group synchronization capability.
• Selectable error detection and correction.
• Output clock polarity selection.
• Block data start output.
• Error output.
• On-chip oscillator.
• 5 V supply.
• 18-pin DIP (LC7073) and 18-pin MFP (LC7073M).
Pin Assignment
Package Dimensions
unit:mm
3007B-DIP18
[LC7073]
24.0
18
1
(1.84)
unit:mm
3095-MFP18
18
1
2.54
[LC7073M]
12.6
0.35
1.27
10
9
(3.25)
1.20.5
10
5.4
9
1.22
0.15
1.8max
1.5
0.1
6.4
7.62
3.85max
3.3
0.51min
SANYO : DIP18
7.6
6.35
0.625
0.25
Top view
71901TN (KT)/5281JN(US) No.3932–1/9
SANYO : MFP18
Block Diagram
LC7073, 7073M
Pin Function
rebmuNemaNtiucrictnelaviuqEnoitpircseD
11CSO 1noitcennocrotanosercimareclanretxE
2V
3V
4SER selcyckcolc4fomuminimarofWOLdleH.tupniteserreggirt-ttimhcS
5NIKC kcolctuptuorotaludomedSDRotstcennoC.kcolctupniatadlaireS
6NID tuptuoatadrotaludomedSDRotstcennoC.tupniatadlaireS
1SS
2SS
dnuorG
dnuorG
7NEROC
noitcerrocrorreselbane
HGIHdnanoitcerrocrorreselbasidWOL.tupnielbanenoitcerroc-rorrE
Continued on next page.
No.3932–2/9
Continued from preceding page.
rebmuNemaNtiucrictnelaviuqEnoitpircseD
8LOPKC tupnitcelesytiralopkcolctuptuoatadlaireS
LC7073, 7073M
9V
01CER
11LTCTSD
21ROC
31RRE
DD
ylppusV5
cnysretfa,gniviecerelihwWOL.tuptuotcetedevieceratadlaireS
teser
skcolbllarof,HGIH
teserretfa
retfaecnadepmihgiH.gniviecertonnehwecnadepmihgiH.noitceted
dna,kcolbdnocesroftratsatadsetaitiniWOL.tupnilortnoctratsataD
noitcerrocrorrenehwWOL.tuptuodelbasid/delbanenoitcerroc-rorrE
ecnadepmihgiH.srucconoitcerrocrorreonnehwHGIHdnasrucco
ecnadepmihgiH.sliafnoitcerrocrorrenehwWOL.tuptuotceted-rorrE
teserretfaecnadepmihgiH.liaftonseodnoitcerrocrorrenehw
41TSD
51TUOD teserretfaHGIH.tuptuoatadlaireS
61TUOKC kcolctuptuoatadlaireS
71V
812CSO 2noitcennocrotanosercimareclanretxE
3SS
atad,HGIHdna,tratsatadonsetacidniWOL.tuptuotratsatadlaireS
teserretfaHGIH.trats
dnuorG
No.3932–3/9