LMX2531 PDF Datasheet
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Description
This is PLLatinum High Performance Frequency Synthesizer System.
LMX2531 High Performance Frequency Synthesizer System with Integrated VCO
October 2005
LMX2531 PLLatinum™ High Performance Frequency Synthesizer System with Integrated VCO
General Description
The LMX2531 is a low power, high performance frequency synthesizer system which includes a fully integrated deltasigma PLL and VCO with fully integrated tank circuit. The third and fourth poles are also integrated and also adjustable. Also included are integrated ultra-low noise and high precision LDOs for the PLL and VCO which give higher supply noise immunity and also more consistent performance. When combined with a high quality reference oscillator, the LMX2531 generates very stable, low noise local oscillator signals for up and down conversion in wireless communication devices. The LMX2531 is a monolithic integrated circuit, fabricated in an advanced BiCMOS process. There are actually several different versions of this product, for which the primary difference is freque.