Pllatinum Dual Frequency Synthesizer System With Integrated Vcos

Pllatinum Dual Frequency Synthesizer System With Integrated VCOs LMX2525 is a highly integrated, high performance, low power Frequency Synthesizer system optimized for dual- band Japan PDC mobile handsets. Using a proprietary digi- tal 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 features low current consumption: 10 mA at 2.8 V when operating in the PDC800 mode. LMX2525 is available in a 24-pin leadless leadframe pack- age (LLP). By National Semiconductor Corporation
LMX2525 's PackagesLMX2525 's pdf datasheet
LMX2525LQX1321
LMX2525LQ1321




LMX2525 Pinout, Pinouts
LMX2525 pinout,Pin out
This is one package pinout of LMX2525,If you need more pinouts please download LMX2525's pdf datasheet.

LMX2525 Application circuits
LMX2525 circuits
This is one application circuit of LMX2525,If you need more circuits,please download LMX2525's pdf datasheet.


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