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
Sync and Error Detection & Correction ICs
for RDS
Ordering number:ENN2890
LC7070N, 7070NM, 7071NM
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
71901TN (KT)/O188TA, TS No.2890–1/8
Overview
The LC7070N, LC7070NM and LC7071NM CMOS Sync
and Error Detection & Correction ICs are designed for use
in the RDS (Radio Data System) implemented by the EBU
(European Broadcasting Union). RDS is used to multiplex
various data on the FM broadcast signal.
When used with the SANYO LA2231 RDS Decoder IC, a
simplified processor can be designed for demodulation, syn-
chronization, and error detection & correction of the data
multiplexed on the FM broadcast, significantly reducing
the front-end load on the system controller.
The data with adjusted sync are obtained as a serial signal
output which can be passed to the system controller for
processing.
LC7070
× × devices are fabricated using a low-power
CMOS process and are available in 18-pin plastic DIPs and
MFPs with and without output pull-ups.
Features
Group synchronization.
Selectable error detection & correction.
Serial data output.
Selectable serial data clock polarity.
Block DATA START signal output.
Low-power CMOS.
Single +5V supply.
18-pin plastic DIP or MFP.
Optional pull-ups on serial data outputs.
*: Only 3 pins for serial data output
1
9
18
10
24.0
(1.84)
2.54
1.2
0.5
(3.25)
3.3
3.85max
0.25
7.62 6.4
0.51min
Package Dimensions
unit:mm
3007B-DIP18
[LC7070N]
SANYO : DIP18
1
18
9
10
12.6
0.15
1.22
0.35
1.27
0.1
1.8max
1.5
5.4
6.35
7.6
0.625
unit:mm
3095-MFP18
[LC7070NM, LC7071NM]
SANYO : MFP18
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