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LC72723_1228117

Features: • Bandpass filter: Switched capacitor filter (SCF)• RDS demodulation: Functions include 57kHz carrier egeneration, clock regeneration, biphase decoding, and ifferential decoding• Buffer RAM: Stores 128 bits (about 100 ms) of data.• Data output: Output can be switc...

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SeekIC No. : 004391906 Detail

LC72723_1228117: Features: • Bandpass filter: Switched capacitor filter (SCF)• RDS demodulation: Functions include 57kHz carrier egeneration, clock regeneration, biphase decoding, and ifferential decodin...

LC72723_1228117 Data Sheet

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Part Number:
LC72723_1228117
Supply Ability:
5000

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Product Details

Description



Features:

• Bandpass filter: Switched capacitor filter (SCF)
• RDS demodulation: Functions include 57kHz carrier egeneration, clock regeneration, biphase decoding, and ifferential decoding
• Buffer RAM: Stores 128 bits (about 100 ms) of data.
• Data output: Output can be switched between master ode and slave mode readout.
• RDS ID detection: Supports ID reset
• Standby control: Stops the crystal oscillator.
• Fully adjustment free.


Application

• Operating supply voltage: 4.5 to 5.5 V
• Operating temperature: 40 to 85°C
• Packages: DIP16 and MFP16


Pinout

Connection Diagram


Specifications

Parameter Symbol Conditions Ratings Unit
Maximum supply voltage VDD max Vddd, Vdda * 0.3 to +7.0 V
Maximum input voltage VIN1 max TEST, MODE, RST 0.3 to +7.0 V
VIN2 max XIN, RDCL 0.3 to Vddd + 0.3 V

VIN3 max

 MPXIN, CIN 0.3 to Vdda + 0.3 V
Maximum output voltage VO1 max RDS-ID (READY) 0.3 to +7.0 V
VO2 max XOUT, RDDA, RDCL 0.3 to Vddd + 0.3 V
VO3 max FLOUT 0.3 to Vdda + 0.3 V
Maximum output current IO1 max XOUT, FLOUT, RDDA, RDCL +3.0 mA
IO2 max RDSID (READY) +20.0 mA
Allowable power dissipation Pd max (Ta 85°C) DIP16 : 300 mW
MFP16 : 140 mW
Operating temperature Topr   40 to +85
Storage temperature Tstg   55 to +125
*: Note that Vdda must be less than or equal to Vddd + 0.3 V


Description

The LC72723_1228117 is an RDS (Radio Data System) signal emodulation IC. This IC integrates a bandpass filter, the emodulation circuit, and buffer RAM on a single chip nd can read out RDS data in slave mode operation with he provision of an external clock input. It also supports aster mode, in which the data is read out in ynchronization with an RDS clock output provided by the C itself.




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