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High Performance Frequency Synthesizer System with Integrated VCO

Availability: 3,750


Package | PIN: WQFN (NJH) | 36
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $10.30
10-24 $9.58
25-99 $9.24
100-249 $8.07
250-499 $7.68
500-749 $7.07
750-999 $6.34
1,000+ $6.33


  • Multiple Frequency Options Available
    • See Device Information Table
    • Frequencies From: 553 MHz to 3132 MHz
  • PLL Features
    • Fractional-N Delta-Sigma Modulator Order
      Programmable up to Fourth Order
    • FastLock/Cycle Slip Reduction with Timeout
    • Partially Integrated, Adjustable Loop Filter
    • Very Low Phase Noise and Spurs
  • VCO Features
    • Integrated Tank Inductor
    • Low Phase Noise
  • Other Features
    • 2.8-V to 3.2-V Operation
    • Low Operating Current
    • Low Power-Down Current
    • 1.8-V MICROWIRE Support
    • 36-Pin 6-mm × 6-mm × 0.8-mm WQFN Package

Texas Instruments  LMX2531LQE1415E/NOPB

The LMX2531 is a low-power, high-performance frequency synthesizer system which includes a fully integrated delta-sigma PLL and VCO with fully integrated tank circuit. The third and fourth poles are also integrated and adjustable. Ultra-low noise and high-precision LDOs are integrated for the PLL and VCO, which yield higher supply-noise immunity and more consistent performance. When combined with a high-quality reference oscillator, the LMX2531 device generates very stable, low-noise local-oscillator signals for up and down conversion in wireless communication devices. The LMX2531 device is a monolithic integrated circuit, fabricated in an advanced BiCMOS process. Several different versions of this product accommodate different frequency bands.