LMK03002 Precision Clock Conditioner with Integrated VCO | TI.com

LMK03002 (ACTIVE) 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

Description

The LMK03002/LMK03002C 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 four LVPECL clock output distribution blocks.

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 LVPECL output buffer. This allows multiple integer-related and phase-adjusted copies of the reference to be distributed to four system components.

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

Features

  • Integrated VCO with Very Low Phase Noise Floor
  • Integrated Integer-N PLL with Outstanding Normalized Phase Noise Contribution of
    -224 dBc/Hz
  • Clock Generator Performance (10 Hz - 20 MHz)
    • LMK03002C: 200 fs RMS Jitter
  • Jitter Cleaner Performance Grade (12 kHz to 20 MHz)
    • LMK03002: 800 fs RMS Jitter
    • LMK03002C: 400 fs RMS Jitter
  • VCO Frequency: 1566 to 1724 MHz
  • Clock Output Frequency Range of 1 to 862 MHz
  • 4 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)

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Design with LMK03002

Recommend Input Frequency Output Frequencies
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Input Frequency  MHz
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Parametrics

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Part number Order Input level Number of outputs Output frequency (Max) (MHz) Output level Operating temperature range (C) Features VCC out (V) VCC core (V) Programmability
LMK03002 Order now LVCMOS
LVPECL    		 4     862     LVPECL     -40 to 85     Integrated VCO     3.3     3.3     uWire    
LMK03200 Order now LVCMOS
LVPECL    		 9     1296     LVDS
LVPECL    		 -40 to 85     Integrated VCO     3.3     3.3     uWire