LMX2571 Overview
The LMX2571 is a low-power, high-performance, wideband PLLatinum™ RF synthesizer that integrates a delta-sigma fractional N PLL, multiple core voltage-controlled oscillator (VCO), programmable output dividers and two output buffers. The VCO cores work up to 5.376 GHz resulting in continuous output frequency range of 10 MHz to 1344 MHz. This synthesizer can also be used with an external VCO.
LMX2571 Key Features
- 1 Any Frequency from 10 MHz to 1344 MHz
- Low Phase Noise and Spurs
- 123 dBc/Hz at 12.5 kHz Offset at 480 MHz
- 145 dBc/Hz at 1 MHz Offset at 480 MHz
- Normalized PLL Noise Floor of -231 dBc/Hz
- Spurious Better Than -75 dBc/Hz
- New FastLock to Reduce Lock Time
- A Novel Technique to Remove Integer Boundary Spurs
- Integrated 5-V Charge Pump and Output Divider for External VCO Operation
- 2-, 4- and 8-Level or Arbitrary Level Direct Digital FSK Modulation