Clocks & timing

Build your system using high-performance clocking solutions with our BAW technology

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Tap into the infinite potential of bulk acoustic wave (BAW), fractional output divider (FOD) and radiation-hardened technologies by using our clocking solutions to meet your needs for enterprise, telecommunications, automotive, industrial, test and measurement, and aerospace and defense applications. Surpass jitter requirements and improve system performance with our BAW clocking solutions, and create products that can endure extreme environmental conditions.

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Design & development resources

Design tool
Clock tree architect programming software

Clock tree architect is a clock tree synthesis tool that streamlines your design process by generating clock tree solutions based on your system requirements. The tool pulls data from an extensive database of clocking products to generate a system-level multi-chip clocking solution.

Application software & framework
Texas Instruments Clocks and Synthesizers (TICS) Pro Software

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.

Application software & framework
Texas Instruments PLLatinum Simulator 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.

Address your clock and timing system challenges

Reliability improvements that differ from traditional resonator technologies

Our BAW resonators improve traditional resonator technologies, with increased reliability in terms of vibration, shock and mean time between failure (MTBF) and failure in time (FIT) performance, which are priorities in harsh environmental conditions.

Benefits:

  • BAW resonators can maintain a stability of <2ppb/g with no jitter or frequency degradation before, during or after a vibration event.
  • Under a mechanical shock of 1500g, BAW resonators can maintain <0.5ppm frequency deviation and do not experience jitter degradation.
  • BAW resonators have a 0.3 FIT rate or 3.3 billion hours MTBF at 35°C, equivalent to 0.3 failures over 1 billion hours of operation.
Application note
High Reliable BAW Oscillator MTBF and FIT Rate Calculations
This application note provides calculation and results for MTBF and FIT values for BAW oscillators, and provides the procedure for these calculations.
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Application note
Vibration and Mechanical Shock Performance of TI BAW Oscillators
This application note provides details on BAW oscillator performance under stringent sinusoidal, random vibration and mechanical shock conditions, and describes various MIL-STD-883 test methods, test setup and performanceresults.
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Technical article
Testing TI BAW resonator technology in mechanical shock and vibration environments
Learn how to test our BAW resonator technology in mechanical shock and vibration environments.
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Featured products for reliability and resiliency
LMK5B33414 ACTIVE 14-output, three DPLL and APLL, network synchronizer with integrated 2.5-GHz bulk-acoustic-wave VCO
LMK6H ACTIVE Low-jitter, high-performance, bulk-acoustic-wave (BAW) fixed-frequency HCSL oscillator
NEW LMK3H0102 ACTIVE Bulk acoustic wave (BAW)-based PCIe Gen 1 to Gen 6-compliant referenceless clock generator

Flexible solutions for a range of output clock frequencies

Our FODs provide excellent jitter performance with a range of output clock frequencies.

Benefits:

  • For clock generator products, integrating high-frequency BAW with an FOD in packages as small as 3mm by 3mm generates clocks with frequencies from 1MHz to 400MHz.
  • Spread-spectrum clocking integrated into the FODs reduces system electromagnetic interference.
  • Glitchless output-frequency programmability with <10ppb resolution steps using FODs provides precise output clock frequency adjustment.
  • FODs used as a startup clock are programmable to output swing or output type at the vendor factory or on-site using the I2C interface.
Technical article
TI BAW resonator innovation puts time on your side
This technical article explains the use of the BAW gigahertz frequency resonator to generate a wide range of frequencies.
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Application note
Standalone BAW Oscillators Advantages Over Quartz Oscillators
This application report details our BAW technology, the integration of a BAW resonator with oscillator circuitry to make a stand-alone oscillator, and the advantages of using a BAW oscillator over a quartz oscillator. 
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Featured products for flexibility
LMK6C ACTIVE Low-jitter, high-performance, bulk-acoustic-wave (BAW) fixed-frequency LVCMOS oscillator
LMK6H ACTIVE Low-jitter, high-performance, bulk-acoustic-wave (BAW) fixed-frequency HCSL oscillator
NEW LMK3H0102 ACTIVE Bulk acoustic wave (BAW)-based PCIe Gen 1 to Gen 6-compliant referenceless clock generator

Improved jitter performance advantages

Our BAW technology offers ultra-low jitter performance that meets the stringent clocking requirements of 800Gbps and 1.6TBps Ethernet-based networks and 5G and 6G wireless infrastructure applications.

Benefits:

  • Our network synchronizers that incorporate BAW technology as a voltage-controlled oscillator (VCO) provide at least a 20dB advantage over traditional inductor-capacitor-tuned VCOs, resulting in clocks with <50fs jitter performance.
  • Our BAW-based oscillators and clock generators provide a clean clocking source to meet the stringent bit-error-rate requirements for EtherCAT, SerDes, Peripheral Component Interconnect Express, and application-specific integrated circuit and field-programmable gate array clocking.
Application note
How to use the LMK05318 as a jitter cleaner
This application report outlines two methods of how to clean input jitter with the LMK05318.
PDF
Application note
ITU-T G.8262 Compliance Test Results for the LMK5C33216
This application report details how LMK5C33216 complies with International Telecommunication Union Telecommunication Standardization Sector (ITU-T) G.8262, which outlines requirements for timing devices in synchronous Ethernet.
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Featured products for ultra-low jitter
LMK6P ACTIVE Low-jitter, high-performance, bulk-acoustic-wave (BAW) fixed-frequency LVPECL oscillator
LMK5B33216 ACTIVE 16-output, three DPLL and APLL, network synchronizer with integrated 2.5-GHz bulk-acoustic-wave VCO
LMK5C33414A ACTIVE Three DPLL, three APLL, four-input and 14-output network synchronizer with JESD204B/C and BAW VCO

High-performance synchronizers and RF synthesizers

Our clocking portfolio includes clock-distribution solutions, high-performance network synchronizers and radio-frequency (RF) synthesizers.

Benefits:

  • Supports JEDEC JESD204B and JESD204C applications by providing phase-synchronized clocking and SYSREF signals to data converters, field-programmable gate arrays and systems-on-a-chip.
  • Institute for Electrical and Electronics Engineers 1588v2 precision time protocol (PTP) software provides full timing support with 1pps signal deviation (±2ns) to meet Class D performance for International Telecommunication Union Telecommunication Standardization Sector profiles, and partial timing support (≤1µs) with packet delay variations >230µs.
  • Compliant with G8275.1 and G.8275.2 PTP telecom profiles.
Featured products for IEEE 1588v2 and PTP
LMK05318B ACTIVE Ultra-low jitter single channel network synchronizer clock with BAW
LMK5B33216 ACTIVE 16-output, three DPLL and APLL, network synchronizer with integrated 2.5-GHz bulk-acoustic-wave VCO
LMK5C33414A ACTIVE Three DPLL, three APLL, four-input and 14-output network synchronizer with JESD204B/C and BAW VCO

Space products for mission-critical designs

Our radiation-hardened clocking solutions address clocking requirements for radio-frequency front ends and data processing, helping you meet mission-critical design requirements and achieve space-grade certification faster, from low earth orbit to deep space missions.

Benefits:

  • 60 years of expertise in the space market
  • Packages include traditional radiation-hardened ceramic (Qualified Manufacturers List [QML] Class V); radiation-hardened plastic (QML Class P) with single event latchup (SEL) ≥65MeV⋅cm2/mg and total ionizing dose (TID) ≥100krad; and radiation-tolerant plastic (space enhanced product [EP]) with SEL ≥43MeV⋅cm2/mg and TID ≥30krad.
Resource
Visit our space applications portal
Browse space applications and choose solutions for your designs.
Resource
All of our space-grade products at your fingertips
Use our space parametric selection table to view TI space products.
Technical article
How Space Enhanced Products Address Challenges in low Earth orbit Applications (Rev. A)
Learn how our space-enhanced product qualification process addresses challenges and removes the need for high-risk and resource-intensive upscreening methods.
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Featured products for radiation hardened
LMX2615-SP ACTIVE Space grade 40-MHz to 15-GHz wideband synthesizer with phase synchronization and JESD204B support
LMK04832-SP ACTIVE Radiation-hardened-assured (RHA), ultra-low-noise, 3.2-GHz, 15-output clock jitter cleaner
NEW LMX1906-SP ACTIVE Radiation-hardness-assured (RHA) 15GHz buffer, multiplier and divider with SYSREF and FPGA clock

Optimized process technology

High-performance, ultra-low-noise phase-locked loops (PLLs) and wideband radio-frequency (RF) voltage-controlled oscillators (VCOs) are core functions for state of-the-art jitter cleaner, RF synthesizer and network synthesizer integrated circuits.

Benefits:

  • Combine in-house, optimized silicon germanium process technology with decades of experience in RF architecture and circuit design
  • Clocking solutions that can help you meet requirements for better noise performance, higher operating frequencies, smaller size and lower power.
Application note
LMX2820 RF Synthesizer Phase Noise Improvement With Alternative Topologies (Rev. A)
This application note characterizes the inherent phase-noise performance of the LMX2820 with varying phase frequency detector frequencies and reference sources. 
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Application note
Dramatically Improve Your Lock Time with VCO Instant Calibration
This application report discusses integrated PLLs and VCOs on silicon technology, why there is a need for calibration, and some methods to achieve ultra-fast lock times.
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Discover featured applications

Wired networking
Improve signal integrity and reduce total solution cost for next-generation 112-G and 224-G PAM4 SerDes clocking with ultra-low jitter clocks enabled by TI's BAW technology
Wireless Infrastructure
Bulk acoustic wave-based network synchronizers, radio-frequency synthesizers and clock distribution have made TI clocking solutions popular in 4G and 5G networks, paving the way to 6G designs
Enterprise
Maximize system reliability and performance in enterprise systems using multisource, high-performance Peripheral Component Interconnect Express (PCIe) Gen 1 through Gen 6 and Ethernet clocking devices
Defense
Meet precise synchronization requirements and deliver low-noise systems using our clocking and radio-frequency synthesizer solutions
Space
Perform in the harshest radiation environments using TI's radiation-tolerant and radiation-hardened clocking and RF synthesizer solutions
Test equipment
Unlock new levels of performance, speed and precision in your test equipment by choosing TI's clocking and RF synthesizer solutions

Improve signal integrity and reduce total solution cost for next-generation 112-G and 224-G PAM4 SerDes clocking with ultra-low jitter clocks enabled by TI's BAW technology

TI's bulk acoustic wave (BAW) technology and broad clocking portfolio with excellent jitter performance enable TI to stand out as a leading clocks supplier.

  • Ultra-low jitter (42-fs) clocks for 112G and 224G PAM-4 SerDes.
  • Low-frequency XO, TCXO or OCXO, the elimination of an external low-dropout regulator requirement and an exceptional power-supply rejection ratio reduce total solution costs. 
  • IEEE 1588 Precision Time Protocol (PTP) synchronous Ethernet solution. Best-in-class jitter along with Class-D timing-accurate PTP software meets G8275.1 and G.8275.2 compliance.

Featured resources

PRODUCTS
  • LMK5B33216 – 16-output, three DPLL and APLL, network synchronizer with integrated 2.5-GHz bulk-acoustic-wave VCO
  • LMK03328 – Ultra-low jitter clock generator family with two independent PLLs
  • LMK6P – Low-jitter, high-performance, bulk-acoustic-wave (BAW) fixed-frequency LVPECL oscillator
DESIGN TOOLS AND SIMULATION
SOFTWARE DEVELOPMENT
  • TICSPRO-SW – Texas Instruments Clocks and Synthesizers (TICS) Pro Software

Bulk acoustic wave-based network synchronizers, radio-frequency synthesizers and clock distribution have made TI clocking solutions popular in 4G and 5G networks, paving the way to 6G designs

Our network synchronizer's hitless switching and holdover performance help you design reliable systems, while our ultra-low-jitter clocks simplify 5G designs.

  • Integrated LDOs provide a <–75-dBc power-supply rejection ratio on supply rails. 
  • DC coupling and easy interface with analog front ends, with JEDEC JESD204B and JESD204C support.
  • Institute of Electrical and Electronics Engineers 1588v2 Precision Time Protocol software provides full timing support; 1-PPS signal deviation <±5 ns; and partial timing support less than ±1 µs, with packet delay variations in excess of 230 µs.

Featured resources

REFERENCE DESIGNS
  • TIDA-010230 – Multi-channel RF transceiver, low-noise clocking reference design for radar and EW applications
PRODUCTS
  • LMK5C33216 – Ultra-low jitter clock synchronizer with JESD204B for wireless communications with BAW
  • LMX2820 – 22.6-GHz wideband RF synthesizer with phase synchronization, JESD and <5-µs frequency calibration
  • LMK00301 – 3-GHz, 10-output differential fanout buffer / level translator
TECHNICAL RESOURCES
SOFTWARE DEVELOPMENT
  • TICSPRO-SW – Texas Instruments Clocks and Synthesizers (TICS) Pro Software
  • PLLATINUMSIM-SW – Texas Instruments PLLatinum Simulator Tool

Maximize system reliability and performance in enterprise systems using multisource, high-performance Peripheral Component Interconnect Express (PCIe) Gen 1 through Gen 6 and Ethernet clocking devices

Our PCIe and Ethernet clocking portfolio includes bulk acoustic wave oscillators, fanout buffers, clock multiplexers and referenceless clock generators.

  • Ultra-low jitter helps PCIe Gen 1 to Gen 6 compliance with greater noise margin.
  • Low propagation delay enables multiple PCIe buffer cascading.
  • Integrated LDO and a high peak signal-to-noise ratio simplify power-filtering circuits.
  • Programmable output formats including low-power high speed current steering logic, low-voltage differential signaling, and 1.2- to 3.3-V low-voltage complementary metal-oxide semiconductor.

Featured resources

PRODUCTS
  • LMK6H – Low-jitter, high-performance, bulk-acoustic-wave (BAW) fixed-frequency HCSL oscillator
  • CDCDB2000 – DB2000QL compliant 20-output clock buffer for PCIe® Gen 1 to Gen 5
  • CDCE6214 – Ultra-low power clock generator with one PLL, four differential output
TECHNICAL RESOURCES

Meet precise synchronization requirements and deliver low-noise systems using our clocking and radio-frequency synthesizer solutions

Our clocking products and radio-frequency phase-locked loops (PLLs) enable ultra-low-noise performance and synchronization features. 

  • High-performance PLLs, an external voltage-controlled oscillator (VCO) mode and an external phase detector input mode help meet stringent noise requirements.
  • Multicore VCOs and calibration algorithms enable wideband coverage and fast frequency hopping.
  • Phase synchronization and adjustability and input windowing features simplify multigigahertz clock synchronization in Joint Electron Device Engineering Council JESD204B and JESD204C systems.

Featured resources

REFERENCE DESIGNS
  • TIDA-010230 – Multi-channel RF transceiver, low-noise clocking reference design for radar and EW applications
  • LMX2594PSEVM – LMX2594 evaluation module for 15-GHz RF synthesizer with multiple-device phase synchronization
PRODUCTS
  • LMX2820 – 22.6-GHz wideband RF synthesizer with phase synchronization, JESD and <5-µs frequency calibration
  • LMX1204 – 12.8-GHz RF buffer, multiplier and divider with JESD204B/C SYSREF support and phase synchronization
  • LMK5B33216 – 16-output, three DPLL and APLL, network synchronizer with integrated 2.5-GHz bulk-acoustic-wave VCO
SOFTWARE DEVELOPMENT
  • PLLATINUMSIM-SW – Texas Instruments PLLatinum Simulator Tool
  • TICSPRO-SW – Texas Instruments Clocks and Synthesizers (TICS) Pro Software

Perform in the harshest radiation environments using TI's radiation-tolerant and radiation-hardened clocking and RF synthesizer solutions

Our high-performance and feature-rich clocking products help you deliver high bandwidth, with wide radio-frequency (RF) coverage in harsh radiation environments.

  •  Highly integrated monolithic clock generators and RF synthesizers help reduce size, weight and power in spaceborne applications.
  • Design practices and process characteristics enable consistent, predictable behavior in harsh radiation environments.
  • Access to detailed radiation reports covering various device modes along with 60 years of expertise in space products helps reduce time to launch.

Featured resources

REFERENCE DESIGNS
  • TIDA-010191 – Space-grade multichannel JESD204B 15-GHz clocking reference design
PRODUCTS
  • LMK04832-SEP – Radiation-tolerant, 30-krad, ultra-low-noise, 3.2-GHz 15-output JESD204C clock jitter cleaner
  • LMX2615-SP – Space grade 40-MHz to 15-GHz wideband synthesizer with phase synchronization and JESD204B support
  • LMK04832-SP – Radiation-hardened-assured (RHA), ultra-low-noise, 3.2-GHz, 15-output clock jitter cleaner
SOFTWARE DEVELOPMENT
  • PLLATINUMSIM-SW – Texas Instruments PLLatinum Simulator Tool
  • TICSPRO-SW – Texas Instruments Clocks and Synthesizers (TICS) Pro Software

Unlock new levels of performance, speed and precision in your test equipment by choosing TI's clocking and RF synthesizer solutions

Our clocking products and radio-frequency (RF) phase-locked loops seamlessly reduce noise and design complexity, enabling applications from precision semiconductor and wireless communications testers to lab instruments.

  • RF synthesizers equipped with calibration algorithms enable wideband frequency coverage and fast frequency hopping.
  • Feature-rich products simplify phase synchronization for multichannel gigahertz sampling systems.
  • Ultra-low-jitter clock buffers and clock generators enable high-speed interfaces from Peripheral Component Interconnect Express to Ethernet.

Featured resources

PRODUCTS
  • LMX2820 – 22.6-GHz wideband RF synthesizer with phase synchronization, JESD and <5-µs frequency calibration
  • LMX1204 – 12.8-GHz RF buffer, multiplier and divider with JESD204B/C SYSREF support and phase synchronization
  • LMK1D1204 – 4-channel output LVDS 1.8-V buffer
SOFTWARE DEVELOPMENT
  • PLLATINUMSIM-SW – Texas Instruments PLLatinum Simulator Tool
  • TICSPRO-SW – Texas Instruments Clocks and Synthesizers (TICS) Pro Software

Technical resources

Video series
Video series
TI Precision Labs - Clocks & Timing videos
Develop your clocks and timing expertise with our comprehensive curriculum of training videos that cover key topics from fundamental terminology and factors of system noise to more advanced design considerations.
Application note
Application note
Multi-Clock Synchronization
Learn how to synchronize multiple devices by either a divider reset, 0-delay, or combination of both methods.
document-pdfAcrobat PDF
Technical article
Technical article
How to select an optimal clocking solution for your FPGA-based design
Learn more about the key factors in choosing a clocking solution for FPGA-based applications.