Precision Resonator Thermostat Offers Fast Warmup Time
Power consumption of less than 150 mW at an operating temperature of 25ºC is provided by the VF37RT, a precision resonator thermostat targeted for use in SARSAT/COSPAS applications. The device is also suited for use in GPS equipment, mobile
Power consumption of less than 150 mW at an operating temperature of 25ºC is provided by the VF37RT, a precision resonator thermostat targeted for use in SARSAT/COSPAS applications. The device is also suited for use in GPS equipment, mobile measuring equipment and instrumentation. It's available in a frequency range of 8 MHz to 20 MHz. The vacuum-sealed enclosure contains a third-overtone, SC-cut crystal with integral 12V temperature controller. Incorporation of direct heating technology translates into fast warmup time of less than 15 seconds. Frequency stability is less than 2 x 10-8 over a temperature range of -20ºC to 70ºC. Other features include superior aging characteristics of ±0.001 ppm/day and ±0.1 ppm/year. The device comes in a small 5-pin metal package. Users may specify VCC from 5V to 12V (±5% or ±10%). Lead times are eight to 10 weeks.
