器件名称:
LC72725KV
功能描述:
CMOS IC RDS(RBDS) Demodulation IC
文件大小:
176.19KB 共9页
简 介:
Ordering number : ENA0503 LC72725KM, LC72725KV Overview CMOS IC RDS(RBDS) Demodulation IC The LC72725KM and LC72725KV are 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) RBDS (Radio Broadcast Data System) standard. These ICs include band-pass filter, demodulator,and data buffer RAM 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 RAM: 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 max VIN2 max Maximum output voltage VO1 max VO2 max VO3 max Maximum output current IO1 max IO2 max Pin Name VDDd, VDDa * TEST, MODE, XIN, RDCL, RST MPXIN, CIN RDS-ID(READY) XOUT, RDDA, RDCL FLOUT XOUT, FLOUT, RDDA, RDCL RDS-ID(READY) Conditions VDDa≤VDDd+0.3V Ratings -0.3 to +6.5 -0.3 to VDDd+0.3 -0.3 to VDDa+0.3 -0.3 to +6.5 -0.3 to VDDd+0.3 -0.3 to VDDa+0.3 +2.0 +8.0 U……
