SL1455

2036-2.2 www.DataSheet4U.com SL1455 WIDEBAND LINEAR FM DETECTOR WITH THRESHOLD EXTENSION The SL1455 is a wideband FM demodulator with threshold extension. It is intended for use in satellite receivers with an IF between 300MHz and 700MHz. FEATURES I 7dB Noise Threshold Obtainable 0V 0V OSCILLATOR TUNED CIRCUIT VCC 0V 0V 1 2 3 4 5 6 7 14 13 12 RF INPUT 0V VCC VIDEO OUTPUT 0V 0V I Low External Component Count I Negligible Differential Gain and Phase Error I Wide Operating Frequency Range: 300 to 700MHz I Demodulates FM Signals with up to 28MHz p-p Deviation I Electrostatic Protection* SL1455 11 10 9 8 QUADRATURE NETWORK * Normal ESD handling precautions should be observed APPLICATIONS I DBS Receivers 0V 0V OSCILLATOR TUNED CIRCUIT VCC 0V 0V DP14 RF INPUT 0V VCC VIDEO OUTPUT 0V 0V 1 2 3 4 5 6 7 14 13 I Wideband Data Communications Demodulation ABSOLUTE MAXIMUM RATINGS Operating temperature range Supply voltage Input voltage Storage temperature Junction temperature 210°C to180°C 7V 2·5V p-p 255°C to 1150°C 1175°C SL 1455 12 11 10 9 8 QUADRATURE NETWORK MP14 ORDERING INFORMATION SL1455 NA DP (14-lead plastic DIL package) SL1455 NA MP (14-lead miniature plastic DIL package) Fig. 1 Pin connections - top view (not to scale) VCC 4 VCC 12 DEMODULATOR RF INPUT fIN 14 OSC fIN 2 42 11 fIN 4 VIDEO OUTPUT VIDEO AMPLIFIER 3 4 7 8 1, 2, 5, 6, 9, 10, 13 TUNED CIRCUIT QUADRATURE CONNECTIONS 0V Fig. 2 Block diagram SL1455 ELECTRICAL CHARACTERISTICS Thes...