Patent ID: 6621361
Filing Date: 2003-09-16
Classification: H03L

Abstract:
An ovenized oscillator assembly, comprising:a) a first temperature controlled oven; b) a substrate located inside the first oven, the substrate having a first and a second side; c) an oscillator circuit mounted to the first side, the oscillator operable to produce a reference frequency; d) a crystal mounted to the second side; e) a heat sink surrounding the substrate; f) a thermoelectric heat pump attached to the heat sink, the thermoelectric heat pump in thermal communication with the first temperature controlled oven, the thermoelectric heat pump adapted to keep the first oven at a first temperature; g) a second temperature controlled oven, the first temperature controlled oven and the thermoelectric heat pump located inside the second temperature controlled oven; h) a heater in thermal communication with the second temperature controlled oven, the heater keeping the second oven at a second temperature; i) a first flexible cable connected to the oscillator circuit; j) a second flexible cable mounted to the first oven, the first flexible cable electrically connected to the second flexible cable; k) a control circuit mounted on the second flexible cable, the control circuit adapted to control the heater; and l) a plurality of terminals electrically connected to the second flexible cable.