S1A0497X01

FM FRONT END S1A0497X01 INTRODUCTION The S1A0497X01 is a monolithic integrated circuit designed for the FM front end of portable radio cassettes or music centers. It consists of RF AMP, local OSC buffer and mixer. Compared with conventional types, it is improved in the following characteristics: — Low supply voltage — Strong input — Spurious radiation 14−SOP 9−SIP FEATURES Wide supply voltage range: VCC = 1.6V − 6.0V Low local oscillation stop voltage: VSTOP = 0.9V (Typ) mproved inter-modulation characteristics by double balanced type mixer circuit Low spurious radiation Built-in clamping diode in the mixer output stage ORDERING INFORMATION Device S1A0497X01-I0B0 S1A0497X01-S0B0 Package 9−SIP 14−SOP Operating Temperature −25°C − +75°C 1 S1A0497X01 FM FRONT END BLOCK DIAGRAM RF AMP MIX OSC BUFF LOCAL OSC VREF (8) 1 RF INPUT 2 BYPASS (11) 3 RF OUTPUT (12) 4 MIX IN (13) 5 GND (14) 6 (3) 7 (4) 8 OSC (5) 9 VCC (7) MIX OSC OUTPUT OUTPUT NOTE: ( ) means 14-SOP-Package NC: (1), (2), (6), (9), (10) ABSOLUTE MAXIMUM RATINGS (Ta = 25°C) Characteristic Supply Voltage Power Dissipation Operating Temperature Storage Temperature PD Symbol VCC S1A0497X(9-SIP) S1A0497X(14-SOP) TOPR TSTG Value 8 600 300 − 25 − +75 − 55 − +150 °C °C Unit V mW NOTE: Derated above Ta = 25 °C in the proportion of 4mW/ °C 2 FM FRONT END S1A0497X01 ELECTRICAL CHARACTERISTICS (Ta = 25 °C ( VCC = 5 V, f = 98MHz, fm = 1kHz, ∆f = ± 22.5KHz, unless otherwise specified) Characteristic Quiesc...