LMX2335U Ultra Low Power Dual Frequency Synthesizer

National Semiconductor

Description

LMX2335U/LMX2336U PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications PRELIMINARY May 2001 LMX2335U/LMX2336U PLLati.
The LMX2335U and LMX2336U are monolithic, integrated dual frequency synthesizers, including two high frequency prescalers, and are designed for applic.

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Datasheet Specifications

Part number: LMX2335U
Manufacturer: National Semiconductor
File Size: 375.47 KB
Datasheet: LMX2335U-NationalSemiconductor.pdf
Description: Ultra Low Power Dual Frequency Synthesizer

Features

* n Ultra low current consumption n 2.7V to 5.5V operation n Selectable synchronous and asynchronous powerdown mode: ICC = 1 µA (typ) n Dual modulus prescaler: 64/65 or 128/129 n Selectable charge pump TRI-STATE® mode n Selectable charge pump current levels n Selectable Fastlock™ mode n Upgrade and co

Applications

* requiring two RF phase-lock loops. The LMX2335U/36U contains two dual modulus prescalers. A 64/65 or a 128/129 prescaler can be selected for each RF synthesizer. A second reference divider chain is included in the IC for improved system noise. The LMX2335U/36U combined with a high quality reference

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LMX2335U Ultra Low Power Dual Frequency Synthesizer National Semiconductor

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