ELM446 Datasheet PDF (50Hz Generator)

ELM446 - 50Hz Generator

Description

The 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.

Features

Low power CMOS design.
Wide supply range - 3.0 to 5.5 volt operation.
3.58MHz crystal controlled operation.
Generates both 50Hz and 1Hz references.
Low parts count.
Complementary 50Hz outputs.
High current drive outputs - up to 25 mA Connection Diagram PDIP and SOIC (top view).

Datasheet Details

Part number	ELM446
Manufacturer	ELM
File Size	36.93 KB
Description	50Hz Generator
Datasheet	ELM446 Datasheet
Additional preview pages of the ELM446 datasheet.

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Full PDF Text Transcription

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ELM446 50Hz Generator Description The 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. A reset input is provided to restart the internal counters, if desired. An active low signal on this pin will also force all of the outputs to an open or tristate condition. Features • Low power CMOS design • Wide supply range - 3.0 to 5.

Published: Dec 20, 2013 |