LC72725KM-TLM-E

Ordering number : ENA0503A LC72725KV CMOS IC RDS(RBDS) Demodulation IC http://onsemi.com Overview The LC72725KV is IC 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) RBDS (Radio Broadcast Data System) standard. This IC include band-pass filter, demodulator, and data buffer on chip. RDS data can be read out from this on-chip memory by external clock input in slave operation mode. Functions • Bandpass filter: Switched capacitor filter (SCF) • RDS Demodulation: 57KHz carrier and RDS data clock regeneration, biphase decode, differential decode. • Buffer: 128 bit (about 100ms) can be restored in the on-chip data buffer RAM. • Data output: Master or slave output mode can be selected. • RDS-ID: Detect RDS signal which can be reset by RST signal input. • Standby control: Crystal oscillator can be stopped. • Fully adjustment free • Low Voltage Specifications Absolute Maximum Ratings at Ta = 25°C, VSSd = VSSa = 0V Parameter Maximum supply voltage Maximum input voltage Symbol VDD max VIN1 Pin Name VDDd, VDDa * TEST, MODE, XIN, RDCL, RST max VIN2 max Maximum output voltage Maximum output current MPXIN, CIN Conditions VDDa≤VDDd+0.3V Ratings Unit -0.3 to +6.5 V -0.3 to VDDd+0.3 V -0.3 to VDDa+0.3 V VO1 max RDS-ID(READY) -0.3 to +6.5 V VO2 max XOUT, RDDA, RDCL -0.3 to VDDd+0.3 V VO3 max FLOUT -0.3 to VDDa+0.3 V IO1 max XOUT, FLOUT, RDDA, RDCL +2.0 mA IO2 max RDS-ID(READY) +8.0 mA * VDDa≤VDDd+0.3V Continued on next page. Semiconductor Components Industries, LLC, 2013 June, 2013 60612HK 20060913-S00003/83006HKIM 20060822-S00002,20060823-S00002 No.A0503-1/9 LC72725KV Continued from preceding page. Parameter Symbol Allowable power dissipation Pd max Operating temperature Storage temperature Pin Name Conditions Ratings Ta≤85°C Unit 100 Topr1 VDD = 2.7V to 5.5V Topr2 VDD = 3.0V to 5.5V Tstg mW -20 to +70 °C -40 to +85 °C -40 to +125 °C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Allowable Operating Ranges at Ta = -20 to +70°C, VSSd = VSSa = 0V, VDDd = VDDa = 2.7V to 5.5V Ta = -40 to +85°C, VSSd = VSSa = 0V, VDDd = VDDa = 3.0V to 5.5V Ratings Parameter Symbol Pin Name Conditions unit min Supply voltage Input high-level voltage Input low-level voltage Input amplitude VDDd, VDDa Ta = -20 to +70°C 2.7 5.5 VDD2 VDDd, VDDa Ta = -40 to +85°C 3.0 5.5 VIH1 TEST, MODE, RST 0.7VDDd 6.5 V VIH2 RDCL 0.7VDDd VDDd V 0 0.3VDDd V VDDd V VIL VO1 TEST, MODE, RST, V RDDA, RDCL VO2 RDS-ID(READY) VIN MPXIN VXIN Guaranteed crystal f = 57±2kHz XIN Xtal XIN, XOUT CI≤120Ω TXtal XIN, XOUT Fo = 4.332MHz 6.5 V 1.6 50 mVrms 400 1500 mVrms 4.332 oscillator frequencies Crystal oscillator operating max VDD1 RDCL Output voltage typ MHz ±100 range ppm RDCL setup time tCS RDCL, RDDA 0 μs RDCL high-level time tCH RDCL 0.75 μs RDCL low-level time tCL RDCL 0.75 Data output time tDC RDCL, RDDA 0.75 μs READY output time tRC RDCL, READY 0.75 μs READY low-level time tRL READY 107 ms μs No.A0503-2/9 LC72725KV Electrical Characteristics for the Allowable Operating Ranges Ratings Parameter Symbol Pin Name Conditions unit min Input resistance Rmpxin Rcin Internal feedback typ max MPXIN-VSSa f = 57kHz 100 kΩ CIN-VSSa f = 57kHz 100 kΩ 1.0 MΩ Rf XIN Center frequency fc FLOUT 56.5 57.0 57.5 kHz -3dB band width BW-3dB FLOUT 2.5 3.0 3.5 kHz 31 34 dB resistance Gain Gain MPXIN-FLOUT f = 57kHz 28 Stop band attenuation Att1 FLOUT Δf = ±7kHz 30 dB dB Att2 FLOUT F70kHz 40 Att3 FLOUT F