1. LM2907 Tachometer Speed Switch Building Block Applications
National Semiconductor
LM2907 Tachometer Speed Application Note 162
Switch Building Block June 1976
Applications
INTRODUCTION
Frequency to voltage converters are available in a number from a single supply voltage which makes them particularly
of forms from a number of sources but invariably require suitable for battery operation
significant additional components before they can be put to
PART 1 GENERAL OPERATION PRINCIPLES
use in a given situation The LM2907 LM2917 series of
devices was developed to o