This is 60Hz calibration frequency standards for digital clock. As 50hz or 60hz frequency generator at TP 3.579MHZ. power supply 12V.Out put Frequency 60HZ [...]
The digital clock circuit board using LM8365,alarm and relay control, alert 2 times in 24 hour,backup battery power outage. Show dates, months or seconds [...]
The digital clock circuit that electronic amateurs are most interested. And The clock ICs that most popular are LM8361, MM5387, [...]
This is Big digital clock circuit without microcontroller, This projects use all CMOS ICs for learn digital and use 7 segment 6 inch LEDs and AC line 50Hz. [...]
This is crystal clock generator circuit that high accuracy, in square ware as time base for various digital circuits, by MM5369,CD4017 and crystal. Which output are 60Hz,1Hz and 1/60Hz. How this circuit works As circuit is shown in Figure 1 The output frequencies have feature for 60 Hertz, 1 Hertz and 1/60 Hertz. Which convenient for use in the circuit about time base such as : the digital counter, timer, digital clock etc. As heart in working are MM5369AA to generated clock frequency(standard digital clock) 60 Hz. so there is a the Crystal frequency 3.579 MHz. is determined fixed value.…