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LMX2531LQX1778E Datasheet(PDF) 1 Page - Texas Instruments |
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LMX2531LQX1778E Datasheet(HTML) 1 Page - Texas Instruments |
1 / 48 page VCO VREG Charge Pump Fast Lock 1 R Divider Serial Interface Control DATA CLK LE CE PLL VREG1 VregVCO VrefVCO OSCin OSCin* Fout Vtune CPout FLout Ftest/ LD DIG VREG PLL VREG2 Prescaler N Divider Comp MUX 1/2 Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMX2531 SNAS252S – OCTOBER 2005 – REVISED DECEMBER 2014 LMX2531 High-Performance Frequency Synthesizer System With Integrated VCO 1 Features 3 Description The LMX2531 is a low-power, high-performance 1 • Multiple Frequency Options Available frequency synthesizer system which includes a fully – See Device Information Table integrated delta-sigma PLL and VCO with fully – Frequencies From: 553 MHz to 3132 MHz integrated tank circuit. The third and fourth poles are also integrated and adjustable. Ultra-low noise and • PLL Features high-precision LDOs are integrated for the PLL and – Fractional-N Delta-Sigma Modulator Order VCO, which yield higher supply-noise immunity and Programmable up to Fourth Order more consistent performance. When combined with a – FastLock/Cycle Slip Reduction with Timeout high-quality reference oscillator, the LMX2531 device Counter generates very stable, low-noise local-oscillator signals for up and down conversion in wireless – Partially Integrated, Adjustable Loop Filter communication devices. The LMX2531 device is a – Very Low Phase Noise and Spurs monolithic integrated circuit, fabricated in an • VCO Features advanced BiCMOS process. Several different versions of this product accommodate different – Integrated Tank Inductor frequency bands. – Low Phase Noise • Other Features Device Information(1) – 2.8-V to 3.2-V Operation PART LOW BAND HIGH BAND LMX2531LQ1146E 553 — 592 MHz 1106 — 1184 MHz – Low Operating Current LMX2531LQ1226E 592 — 634 MHz 1184 — 1268 MHz – Low Power-Down Current LMX2531LQ1312E 634 — 680 MHz 1268 — 1360 MHz – 1.8-V MICROWIRE Support LMX2531LQ1415E 680 — 735 MHz 1360 — 1470 MHz – 36-Pin 6-mm × 6-mm × 0.8-mm WQFN LMX2531LQ1500E 749.5 — 755 MHz 1499 — 1510 MHz Package LMX2531LQ1515E 725 — 790 MHz 1450 — 1580 MHz LMX2531LQ1570E 765 — 818 MHz 1530 — 1636 MHz 2 Applications LMX2531LQ1650E 795 — 850 MHz 1590 — 1700 MHz • Cellular Base Stations LMX2531LQ1700E 831 — 885 MHz 1662 — 1770 MHz • Wireless LANs LMX2531LQ1742 880 — 933 MHz 1760 — 1866 MHz • Broadband Wireless Access LMX2531LQ1778E 863 — 920 MHz 1726 — 1840 MHz • Satellite Communications LMX2531LQ1910E 917 — 1014 MHz 1834 — 2028 MHz • Wireless Radios LMX2531LQ2080E 952 — 1137 MHz 1904 — 2274 MHz • Automotive LMX2531LQ2265E 1089 — 1200 MHz 2178 — 2400 MHz • CATV Equipment LMX2531LQ2570E 1168 — 1395 MHz 2336 — 2790 MHz • Instrumentation and Test Equipment LMX2531LQ2820E 1355 — 1462 MHz 2710 — 2925 MHz • RFID Readers LMX2531LQ3010E 1455 — 1566 MHz 2910 — 3132 MHz • Data Converter Clocking (1) For all available packages, see the orderable addendum at the end of the datasheet. 4 Simplified Schematic 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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