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LMK3C0105

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5 output reference-less clock generator with bulk acoustic wave (BAW)

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Data sheet

LMK3C0105

ACTIVE
Data sheet Order now

Product details

Function Clock generator Number of outputs 5 Output frequency (max) (MHz) 20 Core supply voltage (V) 1.8, 2.5, 3.3 Output supply voltage (V) 1.8, 2.5, 3.3 Output type LVCMOS Operating temperature range (°C) -40 to 85 Features I2C, Pin programmable, Serial interface Rating Catalog
Function Clock generator Number of outputs 5 Output frequency (max) (MHz) 20 Core supply voltage (V) 1.8, 2.5, 3.3 Output supply voltage (V) 1.8, 2.5, 3.3 Output type LVCMOS Operating temperature range (°C) -40 to 85 Features I2C, Pin programmable, Serial interface Rating Catalog
TQFN (RER) 16 9 mm² 3 x 3
  • Integrated BAW resonator, no need for external reference
  • Flexible frequency generation:
    • 100MHz to 400MHz dual Fractional Output Dividers (FODs)
    • Two channel dividers: up to three unique output frequencies from 2.5MHz to 200MHz
      • Example: OUTA/B/C/D/E = 25MHz
      • Example: OUTA/B = 100MHz, OUTC/D = 50MHz, OUTE = 25MHz
    • 1.8V/2.5V/3.3V LVCMOS outputs supported up to 200MHz
    • Generation of up to 5 LVCMOS clocks on OUTA through OUTE pins
  • ±25ppm total output frequency stability
  • 2 functional modes: I2C or preprogrammed OTP
  • –40°C to 85°C ambient temperature.
  • Mixed SSC and non-SSC output support
  • Programmable SSC modulation depth
    • Preprogrammed: –0.1%, –0.25%, –0.3% and –0.5% down spread
    • Register programmable: –0.1% to –3% down spread or ±0.05% to ±1.5% center spread
  • VDD = VDDO = 1.8V/2.5V/3.3V ± 5%
  • <5ms start-up time
  • <50ps output-to-output skew when the outputs are from the same FOD
  • Fail-safe input and VDD pins
  • Integrated BAW resonator, no need for external reference
  • Flexible frequency generation:
    • 100MHz to 400MHz dual Fractional Output Dividers (FODs)
    • Two channel dividers: up to three unique output frequencies from 2.5MHz to 200MHz
      • Example: OUTA/B/C/D/E = 25MHz
      • Example: OUTA/B = 100MHz, OUTC/D = 50MHz, OUTE = 25MHz
    • 1.8V/2.5V/3.3V LVCMOS outputs supported up to 200MHz
    • Generation of up to 5 LVCMOS clocks on OUTA through OUTE pins
  • ±25ppm total output frequency stability
  • 2 functional modes: I2C or preprogrammed OTP
  • –40°C to 85°C ambient temperature.
  • Mixed SSC and non-SSC output support
  • Programmable SSC modulation depth
    • Preprogrammed: –0.1%, –0.25%, –0.3% and –0.5% down spread
    • Register programmable: –0.1% to –3% down spread or ±0.05% to ±1.5% center spread
  • VDD = VDDO = 1.8V/2.5V/3.3V ± 5%
  • <5ms start-up time
  • <50ps output-to-output skew when the outputs are from the same FOD
  • Fail-safe input and VDD pins

The LMK3C0105 is a 5-output reference-less clock generator with SSC support. The device is based on TI proprietary Bulk Acoustic Wave (BAW) technology and provides ±25ppm clock outputs without any crystal or external clock reference. The device can provide 5 SSC clocks, 5 non-SSC clocks, or mixed SSC and non-SSC clocks at the same time. Up to three different output frequencies can be generated across the five outputs. Each output channel can select either FOD as the frequency source to generate four LVCMOS clocks; the REF_CTRL pin functions as a fifth LVCMOS clock output, and can select either FOD as the source.

The device can be easily configured through either GPIO pins or the I2C interface. The LMK3C0105 has very good PSNR and does not require any external LDO. Refer to Power Supply Recommendations for detailed guidelines on power supply filtering and sourcing from a DC/DC supply.

The LMK3C0105 is a 5-output reference-less clock generator with SSC support. The device is based on TI proprietary Bulk Acoustic Wave (BAW) technology and provides ±25ppm clock outputs without any crystal or external clock reference. The device can provide 5 SSC clocks, 5 non-SSC clocks, or mixed SSC and non-SSC clocks at the same time. Up to three different output frequencies can be generated across the five outputs. Each output channel can select either FOD as the frequency source to generate four LVCMOS clocks; the REF_CTRL pin functions as a fifth LVCMOS clock output, and can select either FOD as the source.

The device can be easily configured through either GPIO pins or the I2C interface. The LMK3C0105 has very good PSNR and does not require any external LDO. Refer to Power Supply Recommendations for detailed guidelines on power supply filtering and sourcing from a DC/DC supply.
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* Data sheet LMK3C0105 Reference-less 5-LVCMOS-Output Programmable BAW Clock Generator datasheet PDF | HTML 09 Dec 2024

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