HIGH PRECISION REFERENCE OSCILLATOR WITH ANALOG EEPROM MEMORY
Original Publication Date: 1992-Aug-01
Included in the Prior Art Database: 2002-Jan-15
Current digital oscillator compensation is accom- of oscillator compensation (estimated chip area is plished by storing compensation voltages in a digital conservatively one-quarter to one-half of the present memory and retrieving those values to warp the crystal technology using digital EEprom). This invention oscillator from a D/A as a function of the oscillator accomplishes high precision temperature compensation temperature. The advent of Analog EE prom, as opposed of crystal oscillators (approximately lppm) with drasti- to digital EE prom, simplifies the overhead of this type tally less chip area (no D/A's or A/D's required).