S1A0429A01

FM 1 CHIP RADIO S1A0429A01 INTRODUCTION The S1A0429A01 is a monolithic integrated circuit designed for Portable FM radios. It consists of an RF input stage, mixer, IF, mute control and loop (earphone drive) Amp. It is suitable for a pocket-size radio. 16−SOP−225 FUNCTIONS RF input stage Mixer Mute control Local OSC IF Amp Earphone drive amp FEATURES Minimum number of external parts required Single trimmer tuning No FM det coil FLL IF detect system (76kHz) Operating voltage: VCC = 1.8V − 6.0V ORDERING INFORMATION Device S1A0429A01-S0B0 Package 16−SOP−225 Operating Temperature −10°C − + 70°C 1 S1A0429A01 FM 1 CHIP RADIO BLOCK DIAGRAM MPX 16 FILTER 15 MPX OUTPUT BYPASS RF IN IF FILTER 11 10 SINGLE STRENGTH AF 14 13 12 9 MPX FILTER + AF − RF AMP MIX MUTE CONTROL IF STAGE DEMODULATOR & CORRELATOR STAB OSC 1 DEMOD OUT 2 MUTE 3 GND 4 Vcc 5 TUNE 6 IF IN(-) 7 8 IF FILTER ABSOLUTE MAXIMUM RATINGS ( Ta = 25°C ) Characteristic Supply Voltage Oscillator Voltage Operating Temperature Storage Temperature Thermal Resistance Junction to Ambient Symbol VCC VOSC TOPR TSTG REJA Value 7 −0.5 − + 0.5 −10 − + 70 −55 − + 150 300 Unit V V °C °C K/W 2 FM 1 CHIP RADIO S1A0429A01 ELECTRICAL CHARACTERISTICS MONO CONDITION: f = 98MHz, fm = 1kHz, ∆f = ± 22.5kHz, V = 50dBµ, Ta = 25°C, VCC = 3V Characteristic Quiescent Circuit Current Sensitivity Signal to Noise Ratio Total Harmonic Distortion MONO AM Rejection Ratio Oscillator Voltage AFC Range Mu...