LMX2581 Wideband Frequency Synthesizer



Texas Instruments' wideband frequency synthesizer with integrated VCO


Texas Instruments LMX2581 Wideband Frequency Synthesizer Texas Instruments' LMX2581 is an ultra low-noise, wideband frequency synthesizer which integrates a delta-sigma fractional N PLL, a VCO with fully integrated tank circuit, and an optional frequency divider. The LMX2581 integrates several low-noise, high-precision LDOs to provide superior supply noise immunity and more consistent performance. When combined with a high-quality reference oscillator, the LMX2581 generates a very stable, ultra-low noise signal. The internal VCO can be bypassed so that an external VCO can be used.

Features Applications
  • Wideband synthesizers from 50 to 3760 MHz
  • High performance - low phase-noise and small spurs
  • Option to bypass and use an external VCO
  • Higher phase detector frequency
  • Two sets of RF outputs
  • Wireless infrastructure (UMTS, LTE, WiMax, multi-standard base stations)
  • Broadband wireless
  • Wireless meter reading
  • Test and measurement
  • Clock generation

Buy Now
Digi-Key
Part Number
Texas Instruments
Part Number
Packaging Description  
296-35110-2-ND LMX2581SQE/NOPB Tape & Reel IC RF FREQ SYNTHESIZER 32WQFN LMX2581SQE/NOPB Datasheet
296-35110-1-ND Cut Tape
296-35110-6-ND Digi-Reel®

Evaluation Module
Digi-Key
Part Number
Texas Instruments
Part Number
Description  
296-35491-ND LMX2581EVAL/NOPB BOARD REFERENCE FOR LMX2581 LMX2581EVAL/NOPB User's Guide