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50Hz ACCURATE OSCILLATOR CIRCUIT SCHEMATIC DIAGRAM

2016-08-18 20:14  
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50Hz ACCURATE OSCILLATOR CIRCUIT SCHEMATIC DIAGRAM
The IC ELM446 is an 8 pin digital divider integrated circuit, that provides both 50Hz and 1Hz outputs from a common 3.58MHz NTSC colourburst crystal. Externally, the designer need only provide the crystal and two appropriate loading capacitors, as well as a suitably bypassed power supply. Internal Oscillator circuits then use this reference frequency to precisely derive a stable 50Hz signal. For convenience, a complementary 50Hz signal is also provided. This signal is then further divided to provide a 1Hz signal output. By ELM Electronics