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Texas Instruments LMK6x Low Jitter High-Performance BAW Oscillators

Texas Instruments LMK6x Low Jitter High-Performance BAW Oscillators are ultra-low, fixed-frequency oscillators incorporating the BAW as the resonator source. The devices are factory-programmed per specific operation mode, including frequency, voltage, output type, and function pin. With a high-performance fractional frequency divider, the TI LMK6x can produce any frequency within the specified range providing a single device family for all frequency needs.

The Texas Instruments LMK6x high-performance clocking, mechanical stability, flexibility, and small package options are designed for reference and core clocks in high-speed SERDES in telecommunications, data and enterprise networks, and industrial applications.

Features

  • High-performance differential and single-ended output Oscillator, supporting any fixed frequency within the below range:
    • LMK6D: 1 to 400MHz, LVDS output
    • LMK6H: 1 to 400MHz, HCSL output
    • LMK6P: 1 to 400MHz, LVPECL output
    • LMK6C: 1 to 200MHz, LVCMOS output
  • Ultra-low jitter
    • LMK6D/LMK6H/LMK6P: 100fs typical/125fs maximum RMS jitter at 156.25MHz (12kHz to 20MHz)
    • LMK6C: 350fs typical/500fs maximum RMS jitter at 100MHz (12kHz to 20MHz)
    • LMK6H: PCIe Gen 1 to Gen 6 compliant
  • ±25ppm total frequency stability inclusive of 10 years of aging and all other factors
  • Small industry-standard DLE and DLF packages
  • Support extended industrial temperature grade
    • LMK6P/LMK6D/LMK6H: -40°C to 85°C
    • LMK6C: –40°C to 105°C
  • Integrated LDO for robust supply noise immunity
    • –72dBc PSRR at 500kHz ripple
  • Start-up time: < 5ms
  • Standard frequencies
    • LVCMOS (MHz): 4, 8.192, 12, 20, 24, 25, 33.333, 40, 50, 60, 65.53, 74.25, 100, 125 and 156.25
    • Differential (MHz): 51.84, 100, 122.88, 125, 148.5, 155.52, 156.25, 161.1328125, 200 and 312.5
  • The device can support any frequency between 1MHz to 400MHz

Applications

  • 56G/112G PAM4 clocking
  • 100G/200G/400G/800G optical transport network and coherent optics
  • Network equipment, switches, routers, line cards, SAN, data centers, and baseband units (BBU)
  • PCIe Gen 1 to Gen 6 compliant reference clock
  • Industrial applications
  • Test and measurement
  • ASIC, FPGA, MCU reference clocking
  • High-performance crystal oscillator replacement

Functional Block Diagram

Block Diagram - Texas Instruments LMK6x Low Jitter High-Performance BAW Oscillators

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Publicado: 2023-02-22 | Actualizado: 2025-08-18