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Home » NEWEST Products » New by Manufacturer » Texas Instruments » LMX2492 Wideband Low Noise Fractional N PLL - TI
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Texas Instruments LMX2492 Wideband Low Noise Fractional N PLL

Texas Instruments LMX2492 Wideband
Low Noise Fractional N PLL

Texas Instruments LMX2492 Wideband Low Noise Fractional N PLL is a low noise 14GHz wideband delta-sigma fractional N PLL with ramp and chirp generation. It consists of a phase frequency detector, programmable charge pump, and high frequency input for the external VCO. The LMX2492 supports a broad and flexible class of ramping capabilities, including FSK, PSK, and configurable piecewise linear FM modulation profiles of up to 8 segments. It supports fine PLL resolution and fast ramp with up to a 200MHz phase detector rate. The LMX2492 allows any of its registers to be read back. The LMX2492 can operate with a single 3.3V supply. Moreover, supporting up to 5.25V charge pump can eliminate the need of external amplifier, leading to a simpler solution with improved phase noise performance.

Features
  • -227 dBc/Hz Normalized PLL Noise
  • 500MHz - 14GHz Wideband PLL
  • 3.15 - 5.25V Charge Pump PLL Supply
  • Versatile Ramp / Chirp Generation
  • 200MHz Max Phase Detector Frequency
  • FSK / PSK Modulation Pin
  • Digital Lock Detect
  • Single 3.3V Supply Capability
Applications
  • Automotive FMCW Radar
  • Military Radar
  • Microwave Backhaul
  • Test and Measurement
  • Satellite Communications
  • Wireless Infrastructure
  • Sampling Clock for High Speed ADC/DAC
Functional Diagram
Functional Diagram
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