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LC72720NM

Features: • Error correction capability improved by soft-decision error correction• The load on the microcontroller 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 synchr...

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SeekIC No. : 004391899 Detail

LC72720NM: Features: • Error correction capability improved by soft-decision error correction• The load on the microcontroller can be reduced by storing decoded data in the on-chip data buffer RAM....

LC72720NM Data Sheet

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Part Number:
LC72720NM
Supply Ability:
5000

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Product Details

Description



Features:

• Error correction capability improved by soft-decision error correction
• The load on the microcontroller 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 backwardprotection 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
• Packages: DIP24S, MFP24




Pinout

Connection Diagram




Specifications

Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VDD max
 Vddd, Vdda (Vdda Vddd + 0.3 V)
0.3 to +7.0
V
Input voltage
VIN1 max
 CL,DI,CE,SYR,T1,T2,T3,T4,T5,T6,T7,SYNC
0.3 to +7.0
V
VIN2 max
 XIN
0.3 to Vddd +0.3
V
VIN2 max
 MPXIN, CIN
0.3 to Vdda +0.3
V
Output voltage
VO1 max
 DO,SYNC, RDS-ID,T3,T4,T5,T6,T7
0.3 to +7.0
V
VO2 max
 XOUT
0.3 to Vddd +0.3
V
VO3 max
 FLOUT
0.3 to Vdda +0.3
V
Output current
IO1 max
 DO, T3, T4, T5, T6, T7
6.0
mA
IO2 max
 XOUT, FLOUT
3.0
mA
IO3 max
 SYNC, RDS-ID
20.0
mA
Allowable power dissipation
Pd max
 Ta 85°C DIP24S:
350
mW
MFP24:
300
Operating temperature
Topr
-40to+85
°C
Storage temperature
Tstg
-55to+125
°C
Note: A capacitor of at least 1000 pF must be inserted between the power supply pins Vdd and Vss.




Description

The LC72720N and LC72720NM are single-chip system ICs 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 ICs 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.






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