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LMX1214
  • LMX1214
  • LMX1214

LMX1214

ACTIVE

1:5 18GHz RF buffer and divider with auxiliary clock

Texas Instruments LMX1214 Product Info

1 April 2026 2

Parameters

Frequency (max) (MHz)

18000

Frequency (min) (MHz)

300

Features

Multi-device sync, RF clock distribution, SYNC Pin, Ultra-low additive jitter

Current consumption (mA)

500

Integrated VCO

No

Operating temperature range (°C)

-40 to 85

Rating

Catalog

Package

VQFN (RHA)-40-36 mm² 6 x 6

Features

  • Clock buffer for 300MHz to 18GHz frequency
  • Divider output frequency supported up to 8GHz
  • 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)
  • 4 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
  • 8 programmable output power levels
  • SYNC feature to all divides
  • 2.5V operating voltage
  • –40ºC to +85ºC operating temperature
  • Clock buffer for 300MHz to 18GHz frequency
  • Divider output frequency supported up to 8GHz
  • 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)
  • 4 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
  • 8 programmable output power levels
  • SYNC feature to all divides
  • 2.5V operating voltage
  • –40ºC to +85ºC operating temperature

Description

The LMX1214 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 device supports both buffer and divide mode for the high-frequency clocks. This device can distribute the mutlichannel, low skew, ultra-low noise local oscillator signals to multiple mixers.

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