LMK03001 Precision Clock Conditioner with Integrated VCO | TI.com

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Precision Clock Conditioner with Integrated VCO


Recommended alternative parts

  • LMK01000  -  Distribution, Divide, And Delay Only
  • LMK02000  -  Includes PLL For Use With External VCO/VCXO.
  • LMK03200  -  0-delay Outputs With PLL+VCO For Jitter Cleaning And Clock Generation


The LMK03000 family of precision clock conditioners combine the functions of jitter cleaning/reconditioning, multiplication, and distribution of a reference clock. The devices integrate a Voltage Controlled Oscillator (VCO), a high performance Integer-N Phase Locked Loop (PLL), a partially integrated loop filter, and up to eight outputs in various LVDS and LVPECL combinations.

The VCO output is optionally accessible on the Fout port. Internally, the VCO output goes through a VCO Divider to feed the various clock distribution blocks.

Each clock distribution block includes a programmable divider, a phase synchronization circuit, a programmable delay, a clock output mux, and an LVDS or LVPECL output buffer. This allows multiple integer-related and phase-adjusted copies of the reference to be distributed to eight system components.

The clock conditioners come in a 48-pin WQFN package and are footprint compatible with other clocking devices in the same family.


  • Integrated VCO with Very Low Phase Noise Floor
  • Integrated Integer-N PLL with Outstanding Normalized Phase Noise Contribution of -224 dBc/Hz
  • VCO Divider Values of 2 to 8 (All Divides)
  • Channel Divider Values of 1, 2 to 510 (even divides)
  • LVDS and LVPECL Clock Outputs
  • Partially Integrated Loop Filter
  • Dedicated Divider and Delay Blocks on Each Clock Output
  • Pin Compatible Family of Clocking Devices
  • 3.15 to 3.45 V Operation
  • Package: 48 Pin WQFN (7.0 x 7.0 x 0.8 mm)
  • 200 fs RMS Clock Generator Performance (10 Hz to 20 MHz) with a Clean Input Clock

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Design with LMK03001

Recommend Input Frequency Output Frequencies
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Part number Order Function Number of outputs Output frequency (Max) (MHz) VCC core (V) VCC out (V) Input type Output type Operating temperature range (C) Package size: mm2:W x L (PKG) Features Package Group Rating
LMK03001 Order now Clock generator     9     2160     3.3     3.3     LVPECL     LVDS     -40 to 85     48WQFN: 49 mm2: 7 x 7 (WQFN | 48)     Integrated VCO
WQFN | 48     Catalog    
LMK03200 Order now Clock generator     9     1296     3.3     3.3     LVCMOS
-40 to 85     48WQFN: 49 mm2: 7 x 7 (WQFN | 48)     Integrated VCO
WQFN | 48     Catalog