PT2579

www.DataSheet4U.com Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw RDS Demodulator IC PT2579 DESCRIPTION PT2579 is a Radio Data System Demodulator IC utilizing CMOS Technology specially designed for radio data system applications. The RDS data signal (RDDA) and the RDS clock signal (RDCL) are provided as outputs for further processing by an ideal decoder / microcontroller. Anti-aliasing Filter (2nd order), 57kHz band pass filter (8th order), reconstruction filter (2nd order), clocked comparator with automatic offset compensation, biphase symbol decoder, differential decoder, and signal quality detector are all built into a single chip having the highest performance and reliability. Pin assignments and application circuit are optimized for easy PCB layout and cost saving advantages. FEATURES ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ CMOS Technology Low Power Consumption Anti-Aliasing Filter (2nd Order) Reconstruction Filter (2nd Order) 57kHz Band-Pass Filet (8th Order) 57kHz Carrier Regeneration Differential Decoder Signal Quality Detector Subcarrier Output Selectable 4.332 / 8.664 MHz Crystal Oscillator with Variable Dividers Synchronous Demodulator for 57kHz Modulated RDS Signals Clocked Comparator with Automatic Offset Compensation Clock Generation with Lock on Biphase Data Rate Biphase Symbol Decoder with Integrate and Dump Functions Available in 16 pins, DIP or SOP Package APPLICATIONS ƒ ƒ Car Radio Home Stereo Tuner PT2579 v1.3 -1- April. 2004 Tel...