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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 f_CLK) 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

Texas Instruments LMX1214 RF Buffer & Divider

Features

Applications

Functional Block Diagram

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