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LMX2541SQ3030E Datasheet(PDF) 1 Page - Texas Instruments |
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LMX2541SQ3030E Datasheet(HTML) 1 Page - Texas Instruments |
1 / 64 page LMX2541SQ2060E, LMX2541SQ2380E LMX2541SQ2690E, LMX2541SQ3030E LMX2541SQ3320E, LMX2541SQ3740E www.ti.com SNOSB31I – JULY 2009 – REVISED FEBRUARY 2013 LMX2541 Ultra-Low Noise PLLatinum Frequency Synthesizer with Integrated VCO Check for Samples: LMX2541SQ2060E, LMX2541SQ2380E, LMX2541SQ2690E, LMX2541SQ3030E, LMX2541SQ3320E, LMX2541SQ3740E 1 FEATURES DESCRIPTION 2 • Very Low RMS Noise and Spurs The LMX2541 is an ultra low noise frequency – -225 dBc/Hz Normalized PLL Phase Noise synthesizer which integrates a high performance – Integrated RMS Noise (100 Hz - 20 MHz) delta-sigma fractional N PLL, a VCO with fully integrated tank circuit, and an optional frequency – 2 mrad (100 Hz - 20 MHz) at 2.1 GHz divider. The PLL offers an unprecedented normalized – 3.5 mrad (100 Hz - 20 MHz) at 3.5 GHz noise floor of -225 dBc/Hz and can be operated with • Ultra Low-Noise Integrated VCO up to 104 MHz of phase-detector rate (comparison frequency) in both integer and fractional modes. The • External VCO Option (Internal VCO Bypassed) PLL can also be configured to work with an external • VCO Frequency Divider 1 to 63 (all values) VCO. • Programmable Output Power The LMX2541 integrates several low-noise, high • Up to 104 MHz Phase Detector Frequency precision LDOs and output driver matching network to • Integrated Low-Noise LDOs provide higher supply noise immunity and more consistent performance, while reducing the number of • Programmable Charge Pump Output external components. When combined with a high • Partially Integrated Loop Filter quality reference oscillator, the LMX2541 generates a • Digital Frequency Shift Keying (FSK) very stable, ultra low noise signal. Modulation Pin The LMX2541 is offered in a family of 6 devices with • Integrated Reference Crystal Oscillator Circuit varying VCO frequency range from 1990 MHz up to 4 • Hardware and Software Power Down GHz. Using a flexible divider, the LMX2541 can generate frequencies as low as 31.6 MHz. The • FastLock Mode and VCO-Based Cycle Slip LMX2541 is a monolithic integrated circuit, fabricated Reduction in a proprietary BiCMOS process. Device • Analog and Digital Lock Detect programming is facilitated using a three-wire • 1.6 V Logic Compatibility MICROWIRE interface that can operate down to 1.6 volts. Supply voltage ranges from 3.15 to 3.45 volts. TARGET APPLICATIONS The LMX2541 is available in a 36 pin 6x6x0.8 mm WQFN Package. • Wireless Infrastructure (UMTS, LTE, WiMax) • Broadband Wireless • Wireless Meter Reading • Test and Measurement Device VCO Frequency LMX2541SQ2060E 1990 - 2240 LMX2541SQ2380E 2200 - 2530 LMX2541SQ2690E 2490 - 2865 LMX2541SQ3030E 2810 - 3230 LMX2541SQ3320E 3130 - 3600 LMX2541SQ3740E 3480 - 4000 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2009–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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