CXA1994AM

CXA1994AM/BM M-ary FSK Demodulating Comparator For the availability of this product, please contact the sales office. Description The CXA1994AM/BM is a comparator which allows the M-ary (4-level) FSK data to be demodulated in combination with an FM IF amplifier for pagers. Features Low power consumption 70µA (at VCC = 1.4V, including the current on battery saving control pin) Low voltage operation VCC = 1.0 to 4.0V Applications M-ary FSK pagers Function Window comparator for MSB detection Battery saving control pin Threshold level adjustment pin 8 pin SOP (Plastic) Absolute Maximum Ratings (Ta = 25°C) Supply voltage VCC 7.0 Operating temperature Topr –20 to +75 Storage temperature Tstg –65 to +150 Operating Conditions Supply voltage V °C °C VCC 1.0 to 4.0 V Block Diagram GND B.S. 8 7 6 1 2 3 DATA IN Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits. TH CONT REF VCC DATA OUT 5 4 NC –1– E96428A8Y CXA1994AM/BM Pin Description Pin No. 1 Symbol VCC Pin voltage 1.5V VCC Equivalent circuit Vcc. Description 2 TH CONT — 2 Adjusts the threshold level for comparator. GND VCC 3 DATA IN 0.2V 3 Signal inp...