S1A0427B01

AM/FM 1 CHIP RADIO S1A0427B01 INTRODUCTION The S1A0427B01 is a monolithic integrated circuit designed for portable AM/FM radios or AM/FM clock radios. 16−DlP−300A FUNCTIONS AM RF & MIX AM AGC AM/FM DET Regulator AM Local OSC AM/FM IF AMP Audio Power AMP FM AFC Control FEATURE Portable AM/FM 1-chip radio Wide operating supply voltage range: VCC = 3V − 12V (Approximately ) (Depending on the internal regulator tolerance) Recommended operating suply voltage: VCC = 4.5V − 9V Vcc RL 8Ω 16Ω 45Ω 4.5V O O O 6.0V O O O 7.5V O O O 9.0V X O O Line Operated X X O When using the AC line as an internal shunt regulator mode, it is possible to use a low cost application without a transformer (approximately 42mA) IF AMP gain is determined by the DC voltage appearing at IC Pin 16. Power output: PC = 0.28W (Min.) at THD = 10% (Vcc = 5.5V/8 Ω). ORDERING INFORMATION Device S1A0427B01-D0B0 Package 16−DlP−300A Operating Temperature 20°C − +70°C 1 S1A0427B01 AM/FM 1 CHIP RADIO BLOCK DIAGRAM AM IF OUTPUT 4 RF GND 3 IF DET AM/FM IF AFC AGC AM/FM IF INPUT BYPASS BYPASS IF OUTPUT INPUT 2 1 16 15 14 VCC 13 VOLTAGE REGULATOR AM/FM IF AM F/E MIX OSC RF AM/FM DET POWER AMP 5 AM OSC 6 AM RF INPUT 7 8 9 10 11 12 RF AUDIO AUDIO RIPPLE AUDIO AUDIO BYPASS DET OUT POWER REJECTION GND POWER OUT ABSOLUTE MAXIMUM RATINGS (Ta = 25°C) Character istic Supply Voltage Power Dissipation Supply Current Thermal Resistance Junction to Ambient Operating Temperature Storage...