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LMX2694-SEP

ACTIVE

Radiation hardened 15-GHz wideband PLLatinum™ RF synthesizer

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Data sheet

LMX2694-SEP

ACTIVE
Data sheet Order now

Product details

Integrated VCO Yes Output frequency (min) (MHz) 39.3 Output frequency (max) (MHz) 15100 Normalized PLL phase noise (dBc/Hz) -236 Current consumption (mA) 360 Features Enhanced Product, Integrated VCO, JESD204B SYSREF, Multi-device sync, Phase adjustment, Programmable output power, Wideband 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) -129 Rating Space Operating temperature range (°C) -55 to 125 Lock time (µs) (typ) (s) Loop BW dependent
Integrated VCO Yes Output frequency (min) (MHz) 39.3 Output frequency (max) (MHz) 15100 Normalized PLL phase noise (dBc/Hz) -236 Current consumption (mA) 360 Features Enhanced Product, Integrated VCO, JESD204B SYSREF, Multi-device sync, Phase adjustment, Programmable output power, Wideband 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) -129 Rating Space Operating temperature range (°C) -55 to 125 Lock time (µs) (typ) (s) Loop BW dependent
VQFNP (RTC) 48 49 mm² 7 x 7
  • 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)
  • 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)

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

The LMX2694-SEP allows designers to synchronize the output of multiple instances of the device. This means that deterministic phase can be obtained from a device in any use case, including one with the fractional engine or output divider enabled. The device also allows designers to generate or repeat SYSREF (compliant to JESD204B standard) to use the device as a low-noise clock source for high-speed data converters.

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

The LMX2694-SEP allows designers to synchronize the output of multiple instances of the device. This means that deterministic phase can be obtained from a device in any use case, including one with the fractional engine or output divider enabled. The device also allows designers to generate or repeat SYSREF (compliant to JESD204B standard) to use the device as a low-noise clock source for high-speed data converters.
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Technical documentation

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Type Title Date
* Data sheet LMX2694-SEP Radiation Hardened 15-GHz Wideband PLLatinum RF Synthesizer With Phase Synchronization datasheet (Rev. C) PDF | HTML 01 Mar 2022
* Radiation & reliability report LMX2694-SEP Single Event Effects Test Report (Rev. A) 01 Apr 2022
* Radiation & reliability report LMX2694-SEP Production Flow and Reliability Report (Rev. B) PDF | HTML 11 Mar 2022
* VID LMX2694-SEP VID V6219616 02 Jan 2022
Selection guide TI Space Products (Rev. J) 12 Feb 2024
Technical article 航太級強化產品如何因應低地球軌道應用的挑戰 (Rev. A) PDF | HTML 11 Jan 2024
Technical article 우주 항공 강화 제품이 저지구 궤도 애플리케이션의 과제를 해결하는 방법 (Rev. A) PDF | HTML 11 Jan 2024
Technical article How Space Enhanced Products Address Challenges in low Earth orbit Applications (Rev. A) PDF | HTML 18 Dec 2023
Application note Reduce the Risk in Low-Earth Orbit Missions with Space Enhanced Plastic Products (Rev. A) PDF | HTML 15 Sep 2022
E-book Radiation Handbook for Electronics (Rev. A) 21 May 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LMX2694EPEVM — 15-GHz wideband RF synthesizer evaluation module

This evaluation module is for the LMX2694-EP, which is an extended temperature, 15-GHz wideband RF synthesizser. This synthesizer supports JESD204B compliant SYSREF signal buffering and generation. The LMX2694-EP allows designers to synchronize the output of multiple instances of the device.
User guide: PDF
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Reference designs

TIDA-010274 — Space-grade discrete RF sampling transceiver reference design

This reference design incorporates a 10 GSPS dual digital-to-analog converter and a 5 GSPS dual analog-to-digital converter with active baluns on the RF interface supporting up through X-band. The design also incorporates a space-grade clocking daughter card and a space-grade power solution (...)
Design guide: PDF
Reference designs

TIDA-010260 — 4T5R space-grade integrated transceiver reference design

The 4T5R space-grade integrated transceiver reference design reference design incorporates a full RF sampling transceiver including a clocking solution and power solution. The design incoporates all -SEP flavor TI devices and space-qualified passives within a VITA-57 form factor.
Design guide: PDF
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VQFNP (RTC) 48 Ultra Librarian
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