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LMX2820 - RF Synthesizer

Description

The LMX2820 is a high-performance, wideband synthesizer that can generate any frequency in the range of 45 MHz to 22.6 GHz.

236 dBc/Hz and high phase detector frequency can attain very low in-band noise and integrated jitter.

Features

  • Output frequency: 45 MHz to 22.6 GHz.
  • 36-fs rms jitter (12 kHz.
  • 95 MHz) at 6 GHz.
  • High-performance PLL.
  • Figure of merit:.
  • 236 dBc/Hz.
  • Normalized 1/f noise:.
  • 134 dBc/Hz.
  • -95 dBc Integer Mode Spurs (fPD=100 MHz).
  • High phase detector frequency.
  • 400-MHz integer mode.
  • 300-MHz fractional mode.
  • Programmable input multiplier.
  • Direct PFD input for offset mixing support allowing PLL.

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Full PDF Text Transcription

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www.ti.com LMX2820 SNAS783C – JUNE 2020 – REVISED FEBRLUMARXY22802201 SNAS783C – JUNE 2020 – REVISED FEBRUARY 2021 LMX2820 22.6-GHz Wideband PLLatinum™ RF Synthesizer With Phase Synchronization and JESD204B Support 1 Features • Output frequency: 45 MHz to 22.6 GHz • 36-fs rms jitter (12 kHz – 95 MHz) at 6 GHz • High-performance PLL – Figure of merit: –236 dBc/Hz – Normalized 1/f noise: –134 dBc/Hz – -95 dBc Integer Mode Spurs (fPD=100 MHz) – High phase detector frequency • 400-MHz integer mode • 300-MHz fractional mode – Programmable input multiplier – Direct PFD input for offset mixing support allowing PLL N divider to be one for ultra-low jitter • 2.
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