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LC72720M fiches techniques PDF

Sanyo Semicon Device - Single-Chip RDS Signal-Processing System LSI

Numéro de référence LC72720M
Description Single-Chip RDS Signal-Processing System LSI
Fabricant Sanyo Semicon Device 
Logo Sanyo Semicon Device 





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LC72720M fiche technique
Ordering number : EN *5602
Preliminary
CMOS LSI
LC72720, 72720M
Single-Chip RDS
Signal-Processing System LSI
Overview
The LC72720 and LC72720M are single-chip system LSIs
that implement the signal processing required by the
European Broadcasting Union RDS (Radio Data System)
standard and by the US NRSC (National Radio System
Committee) RDBS (Radio Broadcast Data System)
standard. These LSIs include band-pass filter,
demodulator, synchronization, and error correction circuits
as well as data buffer RAM on chip and perform effective
error correction using a soft-decision error correction
technique.
Functions
• Band-pass filter: Switched capacitor filter (SCF)
• Demodulator: RDS data clock regeneration and
demodulated data reliability information
• Synchronization: Block synchronization detection (with
variable backward and forward protection conditions)
• Error correction: Soft-decision/hard-decision error
correction
• Buffer RAM: Adequate for 24 blocks of data (about 500
ms) and flag memory
• Data I/O: CCB interface (power on reset)
Package Dimensions
unit: mm
3067-DIP24S
[LC72720]
unit: mm
3045B-MFP24
[LC72720M]
SANYO: DIP24S
Features
• Error correction capability improved by soft-decision
error correction
• The load on the control microprocessor can be reduced
by storing decoded data in the on-chip data buffer RAM.
• Two synchronization detection circuits provide
continuous and stable detection of the synchronization
timing.
• Data can be read out starting with the backward-
protection block data after a synchronization reset.
• Fully adjustment free
• Operating power-supply voltage: 4.5 to 5.5 V
• Operating temperature: –40 to +85°C
• Package: DIP24S, MFP24
• CCB is a trademark of SANYO ELECTRIC CO., LTD.
• CCB is SANYO’s original bus format and all the bus
addresses are controlled by SANYO.
SANYO: MFP24
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
N2897HA (OT) No. 5602-1/14

PagesPages 14
Télécharger [ LC72720M ]


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