S1A2298A01

AM/FM TUNER + MPX S1A2298A01 INTRODUCTION The S1A2298A01 is a monolithic integrated circuit which consists of an FM IF AMP, FM QUAD DET, AM IF AMP, AM DET, MPX block and Counter output pin for a DTS (Digital Tuning System) set. It is designed for use in portable radio cassette recorders. 24−SDIP−300 FEATURES AM/FM IF, 1 Chip for DTS Wide Operating Voltage: VCC = 1.8V − 7V Adjust free FM Quadrature Detector djust free MPX VCO ORDERING INFORMATION Device S1A2298A01-A0B0 Package 24−SDIP−300 Operating Temperature − 20°C − + 75°C 1 S1A2298A01 AM/FM TUNER + MPX BLOCK DIAGRAM FMIF IN 24 AM MIX 23 BYPASS 22 AM IF 21 FM QUAD 20 DET OUT 19 MPX IN 18 LPF1 17 LPF2 16 VCO 15 L-OUT 14 R-OUT 13 FM DET FM IF ECL AF PHA DET PIT PIL DET DET VOC DECODE AM MIX AM IF AM DET BF AM/FM MO/ST ECL EVEL SW HYS SSC OSC BF AGC SW TU LED ST LED 1 AMIF IN 2 IF SW 3 AM OSC 4 AMOSC OUT 5 VCC 6 7 8 IF REQ 9 IF CONUNT 10 TU LED 11 ST LED 12 GND AM AGC LOWOUT IN PIN CONFIGURATION FMIF INPUT 24 AM BYPASS MIX 23 22 AM IF 21 FM QUAD 20 DET OUT MPX LPF1 INPUT 18 17 LPF2 16 VCO L-OUT 15 14 ROUT 13 19 S1A2298A01 1 AMRF INPUT 2 IF SW 3 4 5 6 7 8 9 10 11 ST LED 12 GND AM AMOSC VCC AGC LOWCUT OUTPUT IF IF TU REQ COUNT LED 2 AM/FM TUNER + MPX S1A2298A01 PIN FUNCTION Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Symbol AM RF IF SW AM OSC AM OSC BF VCC AM LOW CUT AGC IF REQ IF COUNT TU LED ST LED GND R-OUT L-OUT VCO LP...