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LC72723M Dataheets PDF



Part Number LC72723M
Manufacturers Sanyo Semicon Device
Logo Sanyo Semicon Device
Description RDS Demodulation
Datasheet LC72723M DatasheetLC72723M Datasheet (PDF)

Ordering number : EN6037 CMOS IC LC72723, LC72723M RDS Demodulation IC Overview The LC72723 is an RDS (Radio Data System) signal demodulation IC. This IC integrates a bandpass filter, the demodulation circuit, and buffer RAM on a single chip and can read out RDS data in slave mode operation with the provision of an external clock input. It also supports master mode, in which the data is read out in synchronization with an RDS clock output provided by the IC itself. Package Dimensions unit: m.

  LC72723M   LC72723M



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Ordering number : EN6037 CMOS IC LC72723, LC72723M RDS Demodulation IC Overview The LC72723 is an RDS (Radio Data System) signal demodulation IC. This IC integrates a bandpass filter, the demodulation circuit, and buffer RAM on a single chip and can read out RDS data in slave mode operation with the provision of an external clock input. It also supports master mode, in which the data is read out in synchronization with an RDS clock output provided by the IC itself. Package Dimensions unit: mm 3006B-DIP16 [LC72723] 16 9 7.62 6.4 1 19.2 8 Functions • Bandpass filter: Switched capacitor filter (SCF) • RDS demodulation: Functions include 57kHz carrier regeneration, clock regeneration, biphase decoding, and differential decoding • Buffer RAM: Stores 128 bits (about 100 ms) of data. • Data output: Output can be switched between master mode and slave mode readout. • RDS ID detection: Supports ID reset • Standby control: Stops the crystal oscillator. • Fully adjustment free. 0.71 2.54 0.48 1.2 3.4 3.65max 3.0 SANYO: DIP16 unit: mm 3035A-MFP16 [LC72723M] 16 9 0.625 Ratings • Operating supply voltage: 4.5 to 5.5 V • Operating temperature: –40 to 85°C • Packages: DIP16 and MFP16 1 10.1 1.5 8 5.15 6.4 4.4 1.8max 0.15 0.35 1.27 0.605 0.1 SANYO: MFP16 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. SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 40299RM (OT) No. 6037-1/8 0.25 LC72723, LC72723M Pin Assignment (DIP16/MFP16) Block Diagram No. 6037-2/8 LC72723, LC72723M Pin Descriptions Pin No. Pin Function I/O Pin circuit type 1 VREF Reference voltage output (Vdda/2) Output 2 MPXIN Base band (multiplex) signal input Input 5 FLOUT Subcarrier output (filter output) Output 6 CIN Subcarrier input (comparator input) Input 3 4 8 Vdda Vssa XOUT Analog system power supply (+5 V) Analog system ground Crystal element output (4.332 MHz) — — Output — — 9 XIN Crystal element input (or external reference signal input) 7 12 13 TEST MODE RST Test input Readout mode setting (0: master, 1: slave) RDS ID and RAM reset (Active high logic) Input 14 RDDA RDS data output Output 15 RDCL RDS clock output (master mode) RDS clock input (slave mode) I/O 16 RDS-ID/READY RDS ID/ready output (Active low) Output 11 10 Vddd Vssd Digital system power supply (+5 V) Digital system ground — — — — No. 6037-3/8 LC72723, LC72723M Specifications Absolute Maximum Ratings at Ta = 25°C, Vssd = Vssa = 0 V Parameter Maximum supply voltage Symbol VDD max VIN1 max Maximum input voltage VIN2 max VIN3 max Vo1 max Maximum output voltage Vo2 max Vo3 max Maximum output current Io1 max Io2 max Pd max Topr Tstg Vddd, Vdda * TEST, MODE, RST XIN, RDCL MPXIN, CIN RDS-ID (READY) XOUT, RDDA, RDCL FLOUT XOUT, FLOUT, RDDA, RDCL RDS–ID (READY) (Ta ≤ 85°C) Conditions Ratings –0.3 to 7.0 –0.3 to +7.0 –0.3 to Vddd + 0.3 –0.3 to Vdda + 0.3 –0.3 to +7.0 –0.3 to Vddd + 0.3 –0.3 to Vdda + 0.3 +3.0 +20.0 DIP16 : 300 MFP16 : 140 –40 to +85 –55 to +125 Unit V V V V V V V mA mA mW mW °C °C Allowable power dissipation Operating temperature Storage temperature *: Note that Vdda must be less than or equal to Vddd + 0.3 V Allowable Operating Ranges at Ta = –40 to +85°C, Vssd = Vssa = 0 V, Vddd = Vdda Parameter Supply voltage High-level input voltage Low-level input voltage Output voltage Symbol VDD VIH1 VIH2 VIL Vo1 Vo2 VIN1 Input amplitude VIN2 VXIN Guaranteed oscillator operating range Crystal oscillator frequency deviation RDCL setup time RDCL high-level time RDCL low-level time Data output time READY output time READY low-level time Xtal TXtal tCS tCH tCL tDC tRC tRL Conditions Vddd, Vdda: Vddd = Vdda TEST, MODE, RST RDCL TEST, MODE, RST, RDCL RDDA, RDCL RDS–ID (READY) f = 57 ±2 KHz MPXIN XIN XIN, XOUT: C1 ≤ 120 Ω XIN, XOUT: Fo = 4.332 MHz RDCL, RDDA RDCL RDCL RDCL, RDDA RDCL, READY READY 0 0.75 0.75 0.75 0.75 107 100% modulation, composite 100 400 4.332 ±100 1500 Ratings min 4.5 07 Vddd 0.7 Vddd 0 typ 5.0 max 5.5 6.5 Vddd 0.3 Vddd Vddd 6.5 50 Unit V V V V V V mVrms mVrms mVrms MHz ppm µs µs µs µS µs ms No. 6037-4/8 LC72723, LC72723M Electrical Characteristics at Ta = –40 to +85°C, Vssd = Vssa = 0 V, Vddd = Vdda Pa.


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