Features PLL FeaturesVCO FeaturesOther Features • Fractional-N Delta Sigma Modulator Order programmable up to 4th order • FastLock/Cycle Slip Reduction with Timeout Counter • Partially integrated, adjustable Loop Filter • Very low phase noise and spurs • Integrated tank inductor • Low phase noise • 1499 - 1510 MHz Output Frequency • 749.5 - 755 MHz Output Frequency (Divide by 2 Mode) • 2.8 V to 3.2 V Operation • Low Power-Down Current • 1.8V MICROWIRE Support • Package: 36 Lead LLP Description The LMX2531LQ1500E is a low power, high performance frequency synthesizer system which includes a fully integrated delta-sigma 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 LMX2531LQ1500E generates very stable, low noise local oscillator signals for up and down conversion in wireless communication devices. The LMX2531LQ1500E is a monolithic integrated circuit, fabricated in an advanced BiCMOS process. There are several different versions of this product in order to accomdate different frequency bands. Device programming is facilitated using a three-wire MICROWIRE Interface that can operate down to 1.8 volts. Supply voltage range is 2.8 to 3.2 Volts. The LMX2531LQ1500E is available in a 36 pin 6x6x0.8 mm Lead-Free Leadless Leadframe Package (LLP).

LMX2531LQ1500E WEBENCH® Design/Analyze/Build It Custom Design Options (Advanced Options) Min Output Freq MHz >= 1499 help Max Output Freq MHz <= 1510 help Channel Spacing KHz > 0 help Crystal Freq MHz > 0 help Max Supply V > 0 help What is WEBENCH® Also Recommended ADC081500 8-bit, 1.5GSPS A/D Converter ADC083000 8-bit, 3GSPS A/D Converter ADC08B3000 8-bit, 3GSPS A/D Converter With Integrated 4K Byte FIFO ADC08D1500 8-bit, Dual 1.5GSPS A/D Converter MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

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Datasheet

Title		Size	Date	Other Language
	LMX2531LQ1500E High Performance Frequency Synthesizer System with Integrated VCO	458 Kbytes	4-Sep-08

Featured Application Notes

Title		Size	Date	Other Language
	AN-1558: Application Note 1558 Clocking High-Speed A/D Converters	659 Kbytes	17-Mar-07	日本語 中文

More Application Notes

Title		Size	Date	Other Language
	AN-1879: Application Note 1879 Fractional N Frequency Synthesis	511 Kbytes	10-Dec-08
	AN-1865: Application Note 1865 Frequency Synthesis and Planning for PLL Architectures	151 Kbytes	6-Feb-09

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMX2531LQ1500E	BICMOS8	2	14113	142	0	1677500	3	475995205

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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