Product Summary

The PT2579-SN 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. The PT2579-SN is designed for: Car radio and Home stereo tuner.

Parametrics

PT2579-SN absolute maximum ratings: (1)Analog supply voltage, AVDD: 0 to 6 V; (2)Digital supply voltage DVDD: 0 to 6 V; (3)Voltage on all pins except GND, Vn: -0.5 to VDDX+0.5 V; (4)Operating temperature, Topr: -40 +85℃; (5)Storage temperature, Tstg: -65 +150℃.

Features

PT2579-SN features: (1)CMOS technology; (2)Low power consumption; (3)Anti-Aliasing filter (2nd Order); (4)Reconstruction filter (2nd Order); (5)57KHz Band-Pass filet (8th Order); (6)57KHz carrier regeneration; (7)Differential decoder; (8)Signal quality detector; (9)Subcarrier output; (10)Selectable 4.332 / 8.664MHz Crystal Oscillator with variable dividers; (11)Synchronous demodulator for 57KHz Modulated RDS signals; (12)Clocked comparator with automatic offset compensation; (13)Clock generation with Lock on Biphase data rate; (14)Biphase symbol decoder with integrate and dump functions; (15)Available in 16 pins, DIP or SOP.

Diagrams

PT2579-SN circuit diagram

PT250-1200-VM
PT250-1200-VM
API Delevan
Power Inductors 250uH 15% .13ohm VrtMnt 2LeadClip Tor
Data Sheet
0-250: $6.01
250-500: $5.71
500-1000: $5.41
PT250-1500
PT250-1500
API Delevan
Power Inductors 250uH 15% .08ohm VrtMnt Toroid Radial
Data Sheet
0-250: $2.68
250-500: $2.53
500-1000: $2.40
PT250-1500HM
PT250-1500HM
API Delevan
Power Inductors 250uH 15% .08ohm HznMnt Toroid PwrInd
Data Sheet
0-250: $2.68
250-500: $2.53
500-1000: $2.40
PT250-1500-VM
PT250-1500-VM
API Delevan
Power Inductors 250uH 15% .08ohm VrtMnt 4LeadClip Tor
Data Sheet
0-250: $6.01
250-500: $5.71
500-1000: $5.41
PT250-1800
PT250-1800
API Delevan
Power Inductors 250uH 15% .055ohm VrtMnt Toroid Radial
Data Sheet
0-250: $2.68
250-500: $2.53
500-1000: $2.40
PT250-1800HM
PT250-1800HM
API Delevan
Power Inductors 250uH 15% .055ohm HznMnt Toroid PwrInd
Data Sheet
0-250: $2.68
250-500: $2.53
500-1000: $2.40