VK11/12 Car Clock Driver


The VK11/12 is a clock driver circuit designed for Wellgain VID69 clock motors. In the normal operating mode a pulse train is sent to the motor every 60 seconds to obtain a 6° rotation of minute shaft. Two push-buttons allow to correct the time in both directions. A calibration circuit allows to adjust the Quartz in the range of ± 50 ppm, this assures an accuracy of less than ±1s/Mon at 25° C.


■ Oscillator 4.194304 MHz.
■ Peak current 18 mA @5V.
■ Low power consumption.
■ Digital Oscillator Tuning.
■ Power supply 5V (A voltage regulator is requiredif the external power supply is 12V ).