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LMX2353TM — TSSOP / SSOP / MSOP package (representative)
TSSOP / SSOP / MSOP
Representative of package type
National Semiconductor Corp

LMX2353TM

Frequency Synthesizer · TSSOP-16 · Analog
Part Status: Obsolete
Data last refreshed Jun 19, 2026
Manufacturer
National Semiconductor Corp
Mfr Part #
LMX2353TM
Series
LMX2353
Category
Frequency Synthesizer
Datasheet
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Availability & Pricing
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Product Attributes

Electrical & Parametric
Rf Frequency2.5 GHz
If Frequency550 MHz
Physical & Thermal
Package / CaseTSSOP-16
Mounting TypeSurface Mount
SeriesLMX2353
Operating Temperature-40°C ~ 85°C
Classification & Lifecycle
CategoryFrequency Synthesizer
TypeAnalog
Part StatusObsolete

2.5 GHz Fractional-N RF / 550 MHz IF dual PLL frequency synthesizer

Part Activity

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Recent search and sourcing activity for LMX2353TM.

Engineering FAQ

LMX2353TM is marked Obsolete — how does ZDI assure authenticity?
Obsolete and end-of-life parts carry elevated counterfeit risk, which is exactly why ZDI routes every lot through the full EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with source-country supplier vetting and full lot traceability before release.
What are the key specifications of LMX2353TM?
Rf Frequency: 2.5 GHz; If Frequency: 550 MHz.
What package is LMX2353TM supplied in?
LMX2353TM is supplied in the TSSOP-16 package, surface mount, rated -40°C ~ 85°C.
Can ZDI source LMX2353TM beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

✓Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
✓Source-country supplier analysis, rating & review
✓Incoming inspection, RoHS verification, bake, full lot traceability
✓ESD-controlled handling · authentic parts guaranteed

LMX2353TM is marked Obsolete. Obsolete and end-of-life parts carry elevated counterfeit risk — exactly why ZDI routes them through the full EQuality Process™ with source-country supplier vetting, inspection, and traceability.

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