LM331 Precision Voltage-to-Frequency Converter

  
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The LM3361A contains a complete narrow band FM de- modulation system operable to less than 2V supply voltage. Blocks within the device include an Oscillator mixer, FM IF Limiting Amplifier FM Demodulator op amp scan control, and mute Switch The LM3361A is similar to the MC3361 with the following improvements: the LM3361A has higher voltage swing b
LM331 Precision Voltage-to-Frequency Converter - schematic

oth at the op amp and Audio outputs. It also has lower nominal drain current and a squelch circuit that draws significantly less current than the MC3361. Device pinout functions are identical with some slightly different op- erating characteristics By National Semiconductor Corporation



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