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LMX2525

National Semiconductor
Part Number LMX2525
Manufacturer National Semiconductor
Description Dual Frequency Synthesizer System
Published Jun 22, 2018
Detailed Description LMX2525 PLLatinum Dual Frequency Synthesizer System with Integrated VCOs April 2004 LMX2525 PLLatinum™ Dual Frequency...
Datasheet PDF File LMX2525 PDF File

LMX2525
LMX2525

Overview
LMX2525 PLLatinum Dual Frequency Synthesizer System with Integrated VCOs April 2004 LMX2525 PLLatinum™ Dual Frequency Synthesizer System with Integrated VCOs General Description LMX2525 is a highly integrated, high performance, low power frequency synthesizer system optimized for dualband Japan PDC mobile handsets.
Using a proprietary digital phase locked loop technique, LMX2525 generates very stable, low noise local oscillator signals for up and down conversion in wireless communications devices.
LMX2525 includes dual voltage controlled oscillators (VCOs) for the upper and lower Japan PDC frequency bands, a loop filter, and a fractional-N RF PLL based on a delta sigma modulator.
In concert, these blocks form a closed loop RF synthesizer system.
The RF synthesizer system supports two frequency bands: PDC1500 and PDC800.
Serial data is transferred to the device via a three-wire MICROWIRE interface (DATA, LE, CLK).
Operating supply voltage ranges from 2.
5 V to 3.
3 V.
LMX2525 featu...


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