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MC145191 - 1.1 GHz PLL Frequency Synthesizers

Key Features

  • a single.
  • ended current source/sink phase detector output and a double.
  • ended phase detector output. Both phase detectors have linear transfer functions (no dead zones). The maximum current of the single.
  • ended phase detector output is determined by an external resistor tied from the Rx pin to ground. This current can be varied via the serial port. The MC145191 has phase/frequency detectors optimized for single.
  • supply systems of 5 V ± 10%. The part includes a differe.

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Full PDF Text Transcription (Reference)

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MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC145191/D ARCHIVE INFORMATION ARCHIVE INFORMATION 1.1 GHz PLL Frequency Synthesizer Includes On–Board 64/65 Prescaler The MC145191 is a single–package synthesizer with serial interface capable of direct usage up to 1.1 GHz. A special architecture makes this PLL very easy to program because a byte–oriented format is utilized. Due to the patented BitGrabber™ registers, no address/steering bits are required for random access of the three registers. Thus, tuning can be accomplished via a 3–byte serial transfer to the 24–bit A register. The interface is both SPI and MICROWIRE™ compatible. The device features a single–ended current source/sink phase detector output and a double–ended phase detector output.