National Semiconductor LMX2353 PLLatinum Fractional N Frequency Synthesizer Datasheet

The LMX2353 is a fractional N frequency synthesizer with 2.5 GHz frequency range, 2.7V - 5.5V operating voltage and 4.5 mA typical current consumption. It supports 16 levels programmable charge pump current.


National Semiconductor LMX2353 PLLatinum Fractional N Frequency Synthesizer Datasheet - cover page
Brand
National Semiconductor
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
16
File format
PDF
File size
214 KB
Published
06 July, 2012
Updated
30 September, 2023
MD5 checksum
26211378A29EC56BF0F54608579B7F91

About this manual

The LMX2353 is designed to generate stable low noise control signals for UHF and VHF voltage controlled oscillators (VCOs) using a fractional N phase locked loop technique. It features dual modulus prescalers with selectable 16/17 or 32/33 ratios, supporting operation from 0.5 GHz to 2.5 GHz.

What's inside

  • General Description
  • Features
  • Applications
  • Functional Block Diagram
  • Pin Description
  • Absolute Maximum Ratings
  • Recommended Operating Conditions
  • Electrical Characteristics
  • Microwire Timing
  • Functional Description

Specifications

Package Types16-pin TSSOP or 16-pad CSP

Frequently asked questions

What are the available prescaler ratios?

The LMX2353 supports a 16/17 or 32/33 prescale ratio selection.

What is the operating frequency range of the LMX2353?

The device operates from 500 MHz to 2.5 GHz.

What are the supply voltage limits for operation?

The supply voltage must range from 2.7V to 5.5V.

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