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LMX2694-SEP Datasheet Radiation Hardened 15-ghz Wideband Pllatinum Rf Synthesizer

Manufacturer: Texas Instruments

Overview: LMX2694-SEP SNAS788C – NOVEMBER 2019 – REVISED MARCH 2022 LMX2694-SEP Radiation Hardened 15-GHz Wideband PLLatinum™ RF Synthesizer With Phase Synchronization.

General Description

• VID V62/19616-02XE • 39.3-MHz to 15.1-GHz output frequency • –110 dBc/Hz phase noise at 100-kHz offset with 15-GHz carrier • 54-fs RMS jitter at 8 GHz (100 Hz to 100 MHz) • Programmable output power • PLL key specifications – Figure of merit: –236 dBc/Hz – Normalized 1/f noise: –129 dBc/Hz – Up to 200-MHz phase detector frequency • Synchronization of output phase across multiple devices • Support for SYSREF with 9-ps resolution programmable delay • 3.3-V single power supply operation • Operating temperature range: –55°C to 125°C • Radiation specifications – Single event latch-up >43 MeV-cm2/mg – Total ionizing dose to 30 krad(Si) 2 Applications • Command & data handling (C&DH) • Communications payload • Optical imaging payload • Radar imaging payload • Aerospace and defense The LMX2694-SEP device is a high-performance, wideband phase-locked loop (PLL) with an integrated voltage-controlled oscillator (VCO) and voltage regulators that can output any frequency between 39.3 MHz and 15.1 GHz without a doubler, eliminating the need for ½ harmonic filters.

The VCO on this device covers an entire octave to complete the frequency coverage down to 39.3 MHz.

The highperformance PLL, with a –236-dBc/Hz figure of merit and high-phase detector frequency, can achieve very low in-band noise and integrated jitter.

Key Features

  • 3.

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