LMX2502

LMX2502/LMX2512 PLLatinum? Frequency Synthesizer System with Integrated VCO

1FEATURES 2?SmallSize –5.0mmX5.0mmX0.75mm28-PinWQFN Package ?RFSynthesizerSystem –IntegratedRFVCO –IntegratedLoopFilter –LowSpurious,LowPhaseNoiseFractional- NRFPLLBasedon11-BitDeltaSigma Modulator –10kHzFrequencyResolution ?IFSynthesizerSystem

LMX2502

具有集成 VCO 的頻率合成器系統(tǒng); ? Small Size \n? 5.0 mm X 5.0 mm X 0.75 mm 28-Pin WQFN Package\n \n? RF Synthesizer System \n? Integrated RF VCO\n? Integrated Loop Filter\n? Low Spurious, Low Phase Noise Fractional-N RF PLL Based on 11-Bit Delta Sigma Modulator\n? 10 kHz Frequency Resolution\n \n? IF Synthesizer System \n? Integer-N IF PLL\n? Programmable Charge Pump Current Levels\n? Programmable Frequency\n \n? Supports Various Reference Frequencies \n? 19.20/19.68 MHz\n \n? Fast Lock Time: 500 μs\n? Low Current Consumption \n? 17 mA at 2.8 V\n \n? 2.7 V to 3.3 V Operation\n? Digital Filtered Lock Detect Output\n? Hardware and Software Power Down Control;

LMX2502 and LMX2512 are highly integrated, high performance, low power frequency synthesizer systems optimized for Korean PCS and Korean Cellular CDMA (1xRTT, IS-95) mobile handsets. Using a proprietary digital phase locked loop technique, LMX2502 and LMX2512 generate very stable, low noise local oscillator signals for up and down conversion in wireless communications devices. LMX2502 and LMX2512 include a voltage controlled oscillator (VCO), 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. LMX2502 supports the Korean PCS band and LMX2512 supports the Korean Cellular band. LMX2502 and LMX2512 include an Integer-N IF PLL also. For more flexible loop filter designs, the IF PLL includes a 4-level programmable charge pump. Together with an external VCO and loop filter, LMX2502 and LMX2512 make a complete closed loop IF synthesizer system. Serial data is transferred to the device via a three-wire MICROWIRE interface (DATA, LE, CLK). Operating supply voltage ranges from 2.7 V to 3.3 V. LMX2502 and LMX2512 feature low current consumption: 17 mA at 2.8 V. LMX2502 and LMX2512 are available in a 28-pin WQFN package.

LMX2502

PLLatinum??Frequency Synthesizer System with Integrated VCO

LMX2502

LMX2502/LMX2512 PLLatinum??Frequency Synthesizer System with Integrated VCO

LMX2502LQ1635SLASHNOPB

絲?。?a target="_blank" title="Marking" href="/25021635/marking.html">25021635；Package：WQFN；LMX2502/LMX2512 PLLatinum? Frequency Synthesizer System with Integrated VCO

1FEATURES 2?SmallSize –5.0mmX5.0mmX0.75mm28-PinWQFN Package ?RFSynthesizerSystem –IntegratedRFVCO –IntegratedLoopFilter –LowSpurious,LowPhaseNoiseFractional- NRFPLLBasedon11-BitDeltaSigma Modulator –10kHzFrequencyResolution ?IFSynthesizerSystem

LMX2502LQ1635SLASHNOPB.B

絲印：25021635；Package：WQFN；LMX2502/LMX2512 PLLatinum? Frequency Synthesizer System with Integrated VCO

1FEATURES 2?SmallSize –5.0mmX5.0mmX0.75mm28-PinWQFN Package ?RFSynthesizerSystem –IntegratedRFVCO –IntegratedLoopFilter –LowSpurious,LowPhaseNoiseFractional- NRFPLLBasedon11-BitDeltaSigma Modulator –10kHzFrequencyResolution ?IFSynthesizerSystem

LMX2502LQ1635

PLLatinum??Frequency Synthesizer System with Integrated VCO

LMX2502LQ1635/NOPB

LMX2502/LMX2512 PLLatinum??Frequency Synthesizer System with Integrated VCO

LMX2502LQ1635SLASHNOPB

LMX2502/LMX2512 PLLatinum??Frequency Synthesizer System with Integrated VCO

LMX2502LQX1635

PLLatinum??Frequency Synthesizer System with Integrated VCO