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LC72720M Datasheet

  • LC72720M

  • Single-Chip RDS Signal-Processing System LSI

  • 14頁

  • SANYO

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Ordering number : EN
*5602
CMOS LSI
LC72720, 72720M
Single-Chip RDS
Signal-Processing System LSI
Preliminary
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.
Package Dimensions
unit: mm
3067-DIP24S
[LC72720]
Functions
鈥?Band-pass filter: Switched capacitor filter (SCF)
鈥?Demodulator: RDS data clock regeneration and
demodulated data reliability information
鈥?Synchronization: Block synchronization detection (with
variable backward and forward protection conditions)
鈥?Error correction: Soft-decision/hard-decision error
correction
鈥?Buffer RAM: Adequate for 24 blocks of data (about 500
ms) and flag memory
鈥?Data I/O: CCB interface (power on reset)
SANYO: DIP24S
unit: mm
3045B-MFP24
[LC72720M]
Features
鈥?Error correction capability improved by soft-decision
error correction
鈥?The load on the control microprocessor can be reduced
by storing decoded data in the on-chip data buffer RAM.
鈥?Two synchronization detection circuits provide
continuous and stable detection of the synchronization
timing.
鈥?Data can be read out starting with the backward-
protection block data after a synchronization reset.
鈥?Fully adjustment free
鈥?Operating power-supply voltage: 4.5 to 5.5 V
鈥?Operating temperature: 鈥?0 to +85擄C
鈥?Package: DIP24S, MFP24
鈥?CCB is a trademark of SANYO ELECTRIC CO., LTD.
鈥?CCB is SANYO鈥檚 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

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