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SAD1009 - Universal DAC

General Description

The SAD1009 is intended as a peripheral to a microcontroller-based servo system in video cassette recorders.

The device relieves the microcontroller of some of the real time functions.

Key Features

  • Generation of programmable pulse width signals.
  • Measurement of time period signals.
  • All functions are programmable QUICK.

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Other Datasheets by Philips Semiconductors (now NXP Semiconductors)

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Philips Semiconductors Preliminary speciļ¬cation Universal DAC (UDAC) GENERAL DESCRIPTION SAD1009 The SAD1009 is intended as a peripheral to a microcontroller-based servo system in video cassette recorders. The device relieves the microcontroller of some of the real time functions. These functions include; generation of programmable pulse width signals (duty factor etc.) and accurate measurement of time period signals (tacho signal etc.). The SAD1009 has nine programmable output ports. All functions of the UDAC are programmable. Commands and data from the microcontroller are loaded via a bidirectional bus using a 16-bit format. Data from the time period measurement is transferred to the microcontroller via the same bidirectional bus, also using a 16-bit format.