CXA1994 SONY [Sony Corporation], CXA1994 Datasheet
CXA1994
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CXA1994 Summary of contents
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... M-ary FSK Demodulating Comparator For the availability of this product, please contact the sales office. Description The CXA1994AM/ comparator which allows the M-ary (4-level) FSK data to be demodulated in combination with amplifier for pagers. Features • Low power consumption 70µA ( 1.4V, including the current on ...
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... Equivalent circuit GND GND GND – 2 – CXA1994AM/BM Description Vcc. Adjusts the threshold level for comparator Signal input. Connected to the COMP IN pin of the CXA1484A. GND Reference input. Connected to the SENSE pin of the CXA1484A. Comparator output. Ground. ...
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... Battery saving control pin. Battery saving state for low; normal operation for high. Symbol Condition CCS reference COMPH REF reference COMPL REF Vsat V THH V THL – 3 – CXA1994AM/ 1.4V 25°C) CC Min. Typ. Max. Unit 70 100 µA 6 µ –50 mV 0.4 V 0.9 V 0.35 V ...
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... Electrical Characteristics Measurement Circuit The comparator level can be set lower by inserting a resistor between Pin 1 (V B.S. control CXA1994AM/ 0.01µ 5.1k 1µ DATA IN [from DATA (DC 0.2V IC] – 4 – CXA1994AM/BM DATA OUT REF [from REF (0.2V IC] ) and Pin 2. CC ...
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... CXA1994AM/BM ...
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... The MSB comparator output is made comparing to the optional level setting between MSB and LSB levels as reference. For the 2-level FSK demodulation, it corresponds to a conventional NRZ comparator output. Take care that the polarity of NRZ output is inverted in CXA1484A. +4.8kHz +1.6kHz –1.6kHz –4.8kHz – 6 – CXA1994AM/ ...
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... H threshold level L H threshold level H L threshold level 10 20 Resistance between Pins 1 and Threshold level temperature characteristics H L threshold level L H threshold level L H threshold level H L threshold level – Temperature [°C] – 7 – CXA1994AM ...
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... M PACKAGE STRUCTURE PACKAGE MATERIAL LEAD TREATMENT SOP-8P-L01 LEAD MATERIAL SOP008-P-0300-A PACKAGE WEIGHT – 8 – + 0.4 1.25 – 0.15 0.10 + 0.15 0.1 – 0.1 0° to 10° DETAILA EPOXY RESIN SOLDER/PALLADIUM PLATING 42/COPPER ALLOY 0.1g + 0.4 1.85 – 0.15 0.15 + 0.2 0.1 – 0.05 + 0.1 – 0.05 EPOXY RESIN SOLDER PLATING COPPER / 42 ALLOY 0.1g CXA1994AM/BM ...