Product details

Frequency (max) (MHz) 15000 Frequency (min) (MHz) 300 Features Integrated multiplier and divider modes, JESD204B/C SYSREF support, Phase synchronization, RF clock distribution, Radiation hardened, Space Qualified, Space grade, Ultra-low additive jitter Current consumption (mA) 405 Integrated VCO No Operating temperature range (°C) -55 to 125 Rating Space Lock time (µs) (typ) (s) Loop BW dependent
Frequency (max) (MHz) 15000 Frequency (min) (MHz) 300 Features Integrated multiplier and divider modes, JESD204B/C SYSREF support, Phase synchronization, RF clock distribution, Radiation hardened, Space Qualified, Space grade, Ultra-low additive jitter Current consumption (mA) 405 Integrated VCO No Operating temperature range (°C) -55 to 125 Rating Space Lock time (µs) (typ) (s) Loop BW dependent
HTQFP (PAP) 64 144 mm² 12 x 12
  • SMD #5962-23202
    • Total ionizing dose 100krad (ELDRS-free)
    • Single event latch-up (SEL) immune up to 87MeV - cm2 /mg
    • Single event functional interrupt (SEFI) immune up to 87MeV - cm2 /mg
  • Clock buffer for 300MHz to 15GHz frequency
  • Ultra-Low Noise
    • Noise floor of –159dBc/Hz at 6GHz output
    • 36-fs additive jitter (100Hz to fCLK) at 6GHz output
    • 5fs additive jitter (100Hz - 100MHz)
  • 4 high-frequency clocks with corresponding SYSREF outputs
    • Shared divide by 1 (Buffer), 2, 3, 4, 5, and 7
    • Shared programmable multiplier x2, x3, and x4
  • Support pin mode options to configure the device without SPI
  • LOGICLK output with corresponding SYSREF output
    • On separate divide bank
    • 1, 2, 4 pre-divider
    • 1 (bypass), 2, …, 1023 post divider
  • 8 programmable output power levels
  • Synchronized SYSREF clock outputs
    • 508 delay step adjustments of less than 2.5ps each at 12.8GHz
    • Generator and repeater modes
    • Windowing feature for SYSREFREQ pins to optimize timing
  • SYNC feature to all divides and multiple devices
  • 2.5V operating voltage
  • –55ºC to 125ºC operating temperature
  • SMD #5962-23202
    • Total ionizing dose 100krad (ELDRS-free)
    • Single event latch-up (SEL) immune up to 87MeV - cm2 /mg
    • Single event functional interrupt (SEFI) immune up to 87MeV - cm2 /mg
  • Clock buffer for 300MHz to 15GHz frequency
  • Ultra-Low Noise
    • Noise floor of –159dBc/Hz at 6GHz output
    • 36-fs additive jitter (100Hz to fCLK) at 6GHz output
    • 5fs additive jitter (100Hz - 100MHz)
  • 4 high-frequency clocks with corresponding SYSREF outputs
    • Shared divide by 1 (Buffer), 2, 3, 4, 5, and 7
    • Shared programmable multiplier x2, x3, and x4
  • Support pin mode options to configure the device without SPI
  • LOGICLK output with corresponding SYSREF output
    • On separate divide bank
    • 1, 2, 4 pre-divider
    • 1 (bypass), 2, …, 1023 post divider
  • 8 programmable output power levels
  • Synchronized SYSREF clock outputs
    • 508 delay step adjustments of less than 2.5ps each at 12.8GHz
    • Generator and repeater modes
    • Windowing feature for SYSREFREQ pins to optimize timing
  • SYNC feature to all divides and multiple devices
  • 2.5V operating voltage
  • –55ºC to 125ºC operating temperature

The LMX1906-SP is an buffer, divider and multiplier that features high frequency, ultra-low jitter, and SYSREF outputs. This device combined with an ultra-low noise reference clock source is an exemplary design for clocking data converters, especially when sampling above 3GHz. Each of the 4 high frequency clock outputs and additional LOGICLK output is paired with a SYSREF output clock signal. The SYSREF signal for JESD interfaces can either be internally generated or passed in as an input and re-clocked to the device clocks. This device can distribute the multichannel, low skew, ultra-low noise local oscillator signals to multiple mixers by disabling the SYSREF outputs.

The LMX1906-SP is an buffer, divider and multiplier that features high frequency, ultra-low jitter, and SYSREF outputs. This device combined with an ultra-low noise reference clock source is an exemplary design for clocking data converters, especially when sampling above 3GHz. Each of the 4 high frequency clock outputs and additional LOGICLK output is paired with a SYSREF output clock signal. The SYSREF signal for JESD interfaces can either be internally generated or passed in as an input and re-clocked to the device clocks. This device can distribute the multichannel, low skew, ultra-low noise local oscillator signals to multiple mixers by disabling the SYSREF outputs.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Similar functionality to the compared device
LMK04832-SP ACTIVE Radiation-hardened-assured (RHA), ultra-low-noise, 3.2-GHz, 15-output clock jitter cleaner With JESD204 plus additional jitter cleaner and lower frequency
LMX2615-SP ACTIVE Space grade 40-MHz to 15-GHz wideband synthesizer with phase synchronization and JESD204B support Up to 15GHz synthesizer and JESD support

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 6
Top documentation Type Title Format options Date
* Data sheet LMX1906-SP Space Grade Low-Noise, High-Frequency JESD204B/C Buffer, Multiplier and Divider datasheet (Rev. A) PDF | HTML 20 May 2025
* Radiation & reliability report LMX1906-SP Total Ionizing Dose Report PDF | HTML 05 Jan 2024
* Radiation & reliability report LMX1906-SP Single Event Effects Report 15 Nov 2023
Application brief DLA Approved Optimizations for QML Products (Rev. C) PDF | HTML 17 Jun 2025
Application note Practical Clocking Considerations That Give Your Next High-Speed Converter Design an Edge (Rev. A) PDF | HTML 11 Apr 2025
Certificate LMX1906EVM-CVAL EU Declaration of Conformity (DoC) 14 Sep 2023

Design & development

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

Evaluation board

LMX1906EVM-CVAL — LMX1906-SP evaluation module

The LMX1906-SP evaluation module (EVM) is designed to evaluate the performance of the LMX1906-SP, which is a four-output, ultra-low additive jitter radio-frequency (RF) buffer, divider and multiplier. The device can buffer RF frequencies up to 18GHz, multiply RF outputs up to 6.4GHz and divide (...)
User guide: PDF | HTML
Support software

TICSPRO-SW TICS Pro GUI and Live Programming Tool for Clocking Devices

Texas Instruments clocks and synthesizers (TICS) pro software is used to program the evaluation modules (EVMs) for product numbers with these prefixes: CDC, LMK and LMX. These products include phase-locked loops and voltage-controlled oscillators (PLL+VCO), synthesizers and clocking devices.

Supported products & hardware

Supported products & hardware

Download options
Simulation model

LMX1906-SP IBIS Model

SNAM300.ZIP (61 KB) - IBIS Model
Design tool

PLLATINUMSIM-SW PLLatinum Sim Tool

PLLATINUMSIM-SW is a simulation tool that allows users to create detailed designs and simulations of our PLLatinum™ integrated circuits, which include the LMX series of phase-locked loops (PLLs) and synthesizers.

Supported products & hardware

Supported products & hardware

Download options
Package Pins CAD symbols, footprints & 3D models
HTQFP (PAP) 64 Ultra Librarian

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos