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LMK5C33414A

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Three DPLL, three APLL, four-input and 14-output network synchronizer with JESD204B/C and BAW VCO

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Data sheet

LMK5C33414A

ACTIVE
Data sheet Order now

Product details

Function Clock network synchronizer Number of outputs 14 RMS jitter (fs) 47 Output frequency (min) (MHz) 0.000000000001 Output frequency (max) (MHz) 1250 Input type HCSL, LVCMOS, LVDS, LVPECL, XTAL Output type CML, LVCMOS, LVDS, LVPECL Supply voltage (min) (V) 3.135 Supply voltage (max) (V) 3.465 Features JESD204B Rating Catalog Operating temperature range (°C) -40 to 105 Number of input channels 4
Function Clock network synchronizer Number of outputs 14 RMS jitter (fs) 47 Output frequency (min) (MHz) 0.000000000001 Output frequency (max) (MHz) 1250 Input type HCSL, LVCMOS, LVDS, LVPECL, XTAL Output type CML, LVCMOS, LVDS, LVPECL Supply voltage (min) (V) 3.135 Supply voltage (max) (V) 3.465 Features JESD204B Rating Catalog Operating temperature range (°C) -40 to 105 Number of input channels 4
VQFN (RGC) 64 81 mm² 9 x 9
  • Ultra-low jitter BAW VCO based Wireless clocks
    • 42-fs typical/ 60-fs maximum RMS jitter at 491.52 MHz
    • 47-fs typical/ 65-fs maximum RMS jitter at 245.76 MHz

  • Three high-performance Digital Phase Locked Loops (DPLLs) with paired Analog Phase Locked Loops (APLLs)

    • Programmable DPLL loop bandwidth from 1 mHz to 4 kHz
    • < 1-ppt DCO frequency adjustment step size
  • Four differential or single-ended DPLL inputs
    • 1-Hz (1-PPS) to 800-MHz input frequency
    • Digital holdover and hitless switching
  • 14 differential outputs with programmable HSDS/LVPECL, LVDS and HSCL output formats
    • Up to 18 total frequency outputs when configured with 6 LVCMOS frequency outputs on OUT0_P/N, OUT1_P/N, GPIO1 and GPIO2 and 12 differential outputs
    • 1-Hz (1-PPS) to 1250-MHz output frequency with programmable swing and common mode
    • PCIe Gen 1 to 6 compliant
  • I 2C, 3-wire SPI, or 4-wire SPI interface
  • Ambient operating temperature: –40°C to 85°C
  • Ultra-low jitter BAW VCO based Wireless clocks
    • 42-fs typical/ 60-fs maximum RMS jitter at 491.52 MHz
    • 47-fs typical/ 65-fs maximum RMS jitter at 245.76 MHz

  • Three high-performance Digital Phase Locked Loops (DPLLs) with paired Analog Phase Locked Loops (APLLs)

    • Programmable DPLL loop bandwidth from 1 mHz to 4 kHz
    • < 1-ppt DCO frequency adjustment step size
  • Four differential or single-ended DPLL inputs
    • 1-Hz (1-PPS) to 800-MHz input frequency
    • Digital holdover and hitless switching
  • 14 differential outputs with programmable HSDS/LVPECL, LVDS and HSCL output formats
    • Up to 18 total frequency outputs when configured with 6 LVCMOS frequency outputs on OUT0_P/N, OUT1_P/N, GPIO1 and GPIO2 and 12 differential outputs
    • 1-Hz (1-PPS) to 1250-MHz output frequency with programmable swing and common mode
    • PCIe Gen 1 to 6 compliant
  • I 2C, 3-wire SPI, or 4-wire SPI interface
  • Ambient operating temperature: –40°C to 85°C

The LMK5C33414A is a high-performance network synchronizer and jitter cleaner designed to meet the stringent requirements of wireless communications and infrastructure applications.

The network synchronizer integrates three DPLLs to provide hitless switching and jitter attenuation with programmable loop bandwidth and no external loop filters, maximizing flexibility and ease of use. Each DPLL phase locks a paired APLL to a reference input.

APLL3 features ultra high performance PLL with TI’s proprietary Bulk Acoustic Wave (BAW) technology and can generate 491.52-MHz output clocks with 42-fs typical / 60-fs maximum RMS jitter irrespective of the DPLL reference input frequency and jitter characteristics. APLL2 and APLL1 provide options for a second or third frequency and/or synchronization domain.

Reference validation circuitry monitors the DPLL reference clocks and performs a hitless switch between them upon detecting a switchover event. Zero-Delay Mode (ZDM) and phase cancellation may be enabled to control the phase relationship from input to outputs.

The device is fully programmable through I 2C or SPI interface. The onboard EEPROM can be used to customize system start-up clocks. The device also features factory default ROM profiles as fallback options.

The LMK5C33414A is a high-performance network synchronizer and jitter cleaner designed to meet the stringent requirements of wireless communications and infrastructure applications.

The network synchronizer integrates three DPLLs to provide hitless switching and jitter attenuation with programmable loop bandwidth and no external loop filters, maximizing flexibility and ease of use. Each DPLL phase locks a paired APLL to a reference input.

APLL3 features ultra high performance PLL with TI’s proprietary Bulk Acoustic Wave (BAW) technology and can generate 491.52-MHz output clocks with 42-fs typical / 60-fs maximum RMS jitter irrespective of the DPLL reference input frequency and jitter characteristics. APLL2 and APLL1 provide options for a second or third frequency and/or synchronization domain.

Reference validation circuitry monitors the DPLL reference clocks and performs a hitless switch between them upon detecting a switchover event. Zero-Delay Mode (ZDM) and phase cancellation may be enabled to control the phase relationship from input to outputs.

The device is fully programmable through I 2C or SPI interface. The onboard EEPROM can be used to customize system start-up clocks. The device also features factory default ROM profiles as fallback options.
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* Data sheet LMK5C33414ANetwork SynchronizerWith JED204B/JED204C and BAW VCO for Wireless Communications datasheet PDF | HTML 06 Dec 2023
EVM User's guide LMK5C33414A Evaluation Module User's Guide PDF | HTML 21 Dec 2023

Design & development

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Evaluation board

LMK5C33414AEVM — LMK5C33414A evaluation module

The LMK5C33414A evaluation module (EVM)  is the LMK5C33414A network clock generator and synchronizer. The EVM can be used for device evaluation, compliance testing and system prototyping.  The LMK5C33414A integrates three analog PLLs (APLL) and three digital PLLs (DPLL) with programmable (...)

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LMK5B33216 Family IBIS model

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