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Texas Instruments LMX1214 RF Buffer & Divider

Texas Instruments LMX1214 RF Buffer and Divider features high output frequency, ultra-low noise floor, and very low skew clocks distribution. The device has four high-frequency output clocks and a lower-frequency auxiliary clock output. The Texas Instruments LMX1214 supports both buffer and divide modes for high-frequency clocks. This device can distribute the multichannel, low skew, ultra-low noise local oscillator signals to multiple mixers.

Features

  • Clock buffer for 300MHz to 16GHz frequency
  • Divider output frequency supported up to 6.4GHz
  • Ultra-low noise
    • Noise floor of -161dBc/Hz at 6GHz output
    • 36fs additive jitter (100Hz to fCLK) at 6GHz output
    • 5fs additive jitter (100Hz – 100MHz)
  • Four high-frequency clocks output
    • With shared divider by 1 (Bypass), 2, 3, 4, 5, 6, 7, and 8
  • 1ps typical output to output skew
  • Support pin mode options for outputs enable and divider /2, /3, and /4 values set
  • AUXCLK output
    • On separate divide bank
    • 1, 2, 4 pre-divider
    • 1 (bypass), 2, …, 1023 post divider
  • Eight programmable output power levels
  • SYNC feature to all divides
  • 2.5V operating voltage
  • -40°C to +85°C operating temperature

Applications

  • Test and Measurement
    • Oscilloscope
    • Wireless equipment testers
    • Wideband digitizers
  • General Purpose
    • Data converter clocking
    • Clock buffer distribution/division
  • Aerospace and Defense
    • Radar
    • Electronic warfare
    • Seeker Front end
    • Munitions
    • Phase array antenna/beam forming

Functional Block Diagram

Block Diagram - Texas Instruments LMX1214 RF Buffer & Divider

Texas Instruments LMX1214 RF Buffer & Divider