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?001 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.0
Features
" Guaranteed linearity: 0.01% max.
" Low power dissipation: 15mW at 5V
" Wide range of full scale frequency: 1Hz to 100KHz
" Pulse output compatible with all logic forms
" Wide dynamic range: 100dB min at 10KHz full scale
frequency
Description
This voltage to frequency converter provides the output
pulse train at a frequency precisely proportional to the
applied input voltage. The KA331 can operate at power
supplies as low as 4.0V and be changed output frequency
from 1Hz to 100KHz. It is ideally suited for use in simple
low-cost circuit for analog-to digital conversion, long term
integration, linear frequency modulation or demodulation,
frequency-to-voltage conversion, and many other functions.
Internal Block Diagram
KA331
V-F Converter
8-DIP
1
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