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AD9912 - 1-GSPS Direct Digital Synthesizer

General Description

The AD9912 is a direct digital synthesizer (DDS) that

Key Features

  • 1 GSPS internal clock speed (up to 400 MHz output directly).
  • Integrated 1 GSPS 14-bit DAC.
  • 48-bit frequency tuning word with 4 µHz resolution.
  • Differential HSTL comparator.
  • Flexible system clock input accepts either crystal or external reference clock.
  • On-chip low noise PLL REFCLK multiplier.
  • 2 SpurKiller channels.
  • Low jitter clock doubler for frequencies up to 750 MHz.
  • Single-ended CMOS comparator; frequencies of.

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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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Data Sheet AD9912 1 GSPS Direct Digital Synthesizer with 14-Bit DAC FEATURES ► 1 GSPS internal clock speed (up to 400 MHz output directly) ► Integrated 1 GSPS 14-bit DAC ► 48-bit frequency tuning word with 4 µHz resolution ► Differential HSTL comparator ► Flexible system clock input accepts either crystal or external reference clock ► On-chip low noise PLL REFCLK multiplier ► 2 SpurKiller channels ► Low jitter clock doubler for frequencies up to 750 MHz ► Single-ended CMOS comparator; frequencies of <150 MHz ► Programmable output divider for CMOS output ► Serial I/O control ► Excellent dynamic performance ► Software controlled power-down ► Available in two 64-lead LFCSP packages ► Residual phase noise @ 250 MHz ► 10 Hz offset: −113 dBc/Hz ► 1 kHz offset: −133 dBc/Hz ► 100 kHz offset: −153