SA1140

SA1140 FM RADIO IC FOR DIGITAL TUNING SYSTEM DESCRIPTION The SA1140 is an IF system IC designed for FM car stereo receivers. It features versatile muting characteristics which can be varied with external parts. FEATURES www.DataSheet4U.com * Muting characteristics a) Muting operation is performed under weak signal strength. b) Maximum muting attenuation can be selected to be approximately 6 to 40 dB. c) Input signal strength level which actuates the muting circuit can be set freely. * High limiting sensitivity * High S/N (78 dB typ.) * Good AMR * Signal meter drive output proportional to the input signal strength in dB (suitable to control multiplex IC SA3370). Device SA1140 Package ZIP-16 ZIP-16 ORDERING INFORMATION APPLICATIONS * FM car stereo receivers, FM home radio BLOCK DIAGRAM HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.0 2004.10.27 Page 1 of 6 SA1140 ABSOLUTE MAXIMUM RATING (Tamb=25°C) Characteristics Maximum Supply Voltage Maximum Supply Current Allowable Power Dissipation Input Voltage www.DataSheet4U.com Symbol VCC max ICC max Pd max VIN I2 I3 I6 I5 I13 Rating 16 40 640 460 ±1 ±0.2 ±0.2 2 1 2 2 1 1 -20 to +70 -40 to +125 Unit V mA mW mW Vp-p mA mA mA mA mA mA mA mA °C °C Flow-In Current Flow-Out Current I14 I15 I16 Operating Temperature Storage Temperature Topr Tstg ELECTRICAL CHARACTERISTICS (Tamb=25°C, VCC=8V, f=10.7MHz, see specified test circuit) Characteristics Recommended Supply Voltage Operating Supply Voltage Rang...