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
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* 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 lim.
FM Radio IC
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
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* 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
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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.