Home Clocks & timing Oscillators
Home
Clocks & timing
Oscillators
NEW

LMK6B

PREVIEW

9.3fs ultra-low jitter, high performance, fixed frequency differential oscillator

Order now
Data sheet

LMK6B

PREVIEW
Data sheet Order now

Product details

Output type AC-LVPECL, Custom Swing, HS-LVDS, LP-HCSL Output frequency (MHz) 100, 156.25, 312.5, 625, 2500 Stability (ppm) +/- 20, +/-25 Supply voltage (V) 2.5, 3.3 Operating temperature range (°C) -40 to 105 Jitter (ps) 0.0093 Frequency range 50MHz - 2.5GHz
Output type AC-LVPECL, Custom Swing, HS-LVDS, LP-HCSL Output frequency (MHz) 100, 156.25, 312.5, 625, 2500 Stability (ppm) +/- 20, +/-25 Supply voltage (V) 2.5, 3.3 Operating temperature range (°C) -40 to 105 Jitter (ps) 0.0093 Frequency range 50MHz - 2.5GHz
VSON (DLR) 6 3.2 mm² 2 x 1.6
  • Industry’s lowest jitter:
    • 9.3fs typical differential RMS jitter at 625MHz HS-LVDS with 4MHz 1st order high-pass filter (12kHz to 20MHz)
    • 19.7fs typical differential RMS jitter at 312.5MHz AC-LVPECL with 4MHz 1st order high-pass filter (12kHz to 20MHz)
    • 16fs typical RMS jitter at 2500MHz AC-LVPECL output (12kHz to 20MHz)
    • 18fs typical, 35fs max RMS jitter at 625MHz AC-LVPECL output (12kHz to 20MHz)
    • 28fs typical RMS jitter at 312.5MHz AC-LVPECL output (12kHz to 20MHz)
  • Exceptional PSRR performance (ripple frequencies > 10kHz, 50mV supply ripple, 0.1µF decoupling capacitor):
    • < -95dBc spurs for 156.25MHz LP-HCSL
    • < -80dBc spurs for 312.5MHz LVDS
  • Output frequency:
    • Initial frequency offerings: 100, 125, 156.25, 312.5, 625, 1250, 2500MHz, and others
    • Preview, contact TI: 322.265625, 390.625, 425, 496, 603.2291, 804.305467, 2343.75, 2400, 2412.91636, 2457.6, 2480, 2550, 2578.125MHz
      • Other fixed frequencies on request
  • Supports PCIe Gen 1 to Gen 7
  • Output formats:
    • LVDS, HS-LVDS, AC-LVPECL, Custom Swing: 50MHz to 2500MHz
    • LP-HCSL: 50MHz to 625MHz
  • ±25ppm total frequency stability (inclusive of all factors with 10-year aging at 25°C board temperature)
    • ±7ppm temperature variation (-40°C to 105°C)
  • Preview, contact TI: ±20ppm total frequency stability (inclusive of all factors with 10-year aging at 85°C board temperature)
  • 91mA maximum current consumption (AC-LVPECL, Custom Swing, LVDS, HS-LVDS)
  • 85mA maximum current consumption (LP-HCSL)
  • 2.5V / 3.3V power supply (2.375V through 3.465V)
  • Industry standard 6-pin package:
    • 2.0mm × 1.6mm (wettable flank)
    • Preview, contact TI: 2.5mm × 2.0mm, 3.2mm × 2.5mm
  • -40°C to 105°C PCB temperature
  • Industry’s lowest jitter:
    • 9.3fs typical differential RMS jitter at 625MHz HS-LVDS with 4MHz 1st order high-pass filter (12kHz to 20MHz)
    • 19.7fs typical differential RMS jitter at 312.5MHz AC-LVPECL with 4MHz 1st order high-pass filter (12kHz to 20MHz)
    • 16fs typical RMS jitter at 2500MHz AC-LVPECL output (12kHz to 20MHz)
    • 18fs typical, 35fs max RMS jitter at 625MHz AC-LVPECL output (12kHz to 20MHz)
    • 28fs typical RMS jitter at 312.5MHz AC-LVPECL output (12kHz to 20MHz)
  • Exceptional PSRR performance (ripple frequencies > 10kHz, 50mV supply ripple, 0.1µF decoupling capacitor):
    • < -95dBc spurs for 156.25MHz LP-HCSL
    • < -80dBc spurs for 312.5MHz LVDS
  • Output frequency:
    • Initial frequency offerings: 100, 125, 156.25, 312.5, 625, 1250, 2500MHz, and others
    • Preview, contact TI: 322.265625, 390.625, 425, 496, 603.2291, 804.305467, 2343.75, 2400, 2412.91636, 2457.6, 2480, 2550, 2578.125MHz
      • Other fixed frequencies on request
  • Supports PCIe Gen 1 to Gen 7
  • Output formats:
    • LVDS, HS-LVDS, AC-LVPECL, Custom Swing: 50MHz to 2500MHz
    • LP-HCSL: 50MHz to 625MHz
  • ±25ppm total frequency stability (inclusive of all factors with 10-year aging at 25°C board temperature)
    • ±7ppm temperature variation (-40°C to 105°C)
  • Preview, contact TI: ±20ppm total frequency stability (inclusive of all factors with 10-year aging at 85°C board temperature)
  • 91mA maximum current consumption (AC-LVPECL, Custom Swing, LVDS, HS-LVDS)
  • 85mA maximum current consumption (LP-HCSL)
  • 2.5V / 3.3V power supply (2.375V through 3.465V)
  • Industry standard 6-pin package:
    • 2.0mm × 1.6mm (wettable flank)
    • Preview, contact TI: 2.5mm × 2.0mm, 3.2mm × 2.5mm
  • -40°C to 105°C PCB temperature

The LMK6Bx device is an ultra-low jitter, fixed frequency oscillator achieving 9.3fs at 625MHz. This device incorporates the BAW as the resonator source. The device is factory programmed per specific operation mode, including frequency, output type, function pin, and frequency stability.

The high-performance clocking, mechanical stability, flexibility, and small package options for this device are designed for reference and core clocks in high-speed SerDes used in telecommunications, data and enterprise network, and industrial applications.

The LMK6Bx device is an ultra-low jitter, fixed frequency oscillator achieving 9.3fs at 625MHz. This device incorporates the BAW as the resonator source. The device is factory programmed per specific operation mode, including frequency, output type, function pin, and frequency stability.

The high-performance clocking, mechanical stability, flexibility, and small package options for this device are designed for reference and core clocks in high-speed SerDes used in telecommunications, data and enterprise network, and industrial applications.
filter Find other Oscillators
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 4
Top documentation Type Title Format options Date
* Data sheet LMK6B 9.3fs Ultra-Low Jitter, High-performance Differential Oscillator datasheet PDF | HTML 10 Mar 2026
Application note Clocking LMK6Bx with TI Clock Buffers PDF | HTML 11 Mar 2026
Application note The LMK6B: Revolutionizing Optical Module Performance with Industry-Leading Ultra-Low Jitter BAW Oscillators PDF | HTML 11 Mar 2026
EVM User's guide LMK6B Evaluation Module PDF | HTML 09 Mar 2026

Design & development

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

GUI for evaluation module (EVM)

LMK6B-GUI — Prerelease GUI for LMK6B test chip

LMK6B test chip does not include e-fuse for frequency configuration. TICS Pro 2 profile for LMK6B test chip allows programming the test chip to arbitrary frequencies.
Supported products & hardware

Supported products & hardware
Request
Design tool

PLLATINUMSIM-SW — PLL loop filter, phase noise, lock time, and spur simulation 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
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Request
Package Pins CAD symbols, footprints & 3D models
VSON (DLR) 6 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

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