LMX2430TMX PLL Frequency Synthesizer Equivalent & Substitute Parts

Part Overview

The LMX2430TMX is a PLL Frequency Synthesizer IC manufactured by Texas Instruments, designed for clock and timing applications requiring frequency synthesis up to 3GHz. This component operates as a single-circuit PLL with bypass capability, featuring CMOS input and output stages with a 3:2 input-to-output ratio.

The LMX2430TMX carries an Obsolete product status. Locating equivalent or substitute parts is necessary for ongoing system support, maintenance, and new production runs where original inventory becomes unavailable.

Substiute Parts

LMX2430TMX

Texas InstrumentsIn Stock: 2190LMX2430TMX Datasheet

Current PartRFQ

LMX2430TMX/NOPB

Texas InstrumentsIn Stock: 1649LMX2430TMX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LMX2430TMX is determined by strict equivalence across the following critical parameters:

• Identical package type: 20-TSSOP (0.173", 4.40mm Width)
• Matching frequency specifications: 3GHz, 800MHz maximum
• Identical supply voltage range: 2.25V ~ 2.75V
• Matching input/output signal types: CMOS
• Identical circuit count: 1
• Matching input-to-output ratio: 3:2
• PLL with bypass capability: Yes
• Operating temperature range: -40°C ~ 85°C
• Surface mount mounting type

The substitute part LMX2430TMX/NOPB meets all these criteria and is manufactured by the same supplier (Texas Instruments) within the same PLLatinum™ series.

Parameter Comparison

Engineering Selection Recommendations

The LMX2430TMX/NOPB is a direct functional equivalent to the LMX2430TMX. Both parts share identical electrical specifications, package geometry, and performance characteristics across all critical parameters.

The primary distinction is product status: the original LMX2430TMX is classified as Obsolete, while LMX2430TMX/NOPB maintains Active status. The "/NOPB" suffix indicates lead-free (Pb-free) termination, consistent with ROHS3 compliance requirements for both variants.

The LMX2430TMX/NOPB exhibits improved moisture handling characteristics (MSL 1 vs. MSL 3), providing enhanced reliability for storage and handling in standard industrial environments.

Both parts carry identical regulatory compliance certifications: ROHS3 Compliant and REACH Unaffected status. Selection between these variants should be based on availability and supply chain continuity, as electrical and mechanical compatibility is complete.

Frequently Asked Questions (FAQ)

Q: Can LMX2430TMX/NOPB be used as a direct replacement for LMX2430TMX?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The "/NOPB" designation indicates lead-free termination and does not affect functional compatibility.

Q: What does the "/NOPB" suffix mean?

A: NOPB indicates "No Plumbum" (no lead), signifying lead-free solder termination. This is a manufacturing and compliance designation, not a functional difference.

Q: Are there differences in moisture sensitivity between these parts?

A: Yes. The LMX2430TMX/NOPB has MSL 1 (Unlimited), while the original LMX2430TMX has MSL 3 (168 Hours). The substitute part offers superior moisture tolerance, reducing handling and storage constraints.

Q: Do both parts use the same package footprint?

A: Yes. Both use the 20-TSSOP (0.173", 4.40mm Width) package. PCB layout and assembly processes require no modification.

Q: What is the significance of the product status difference?

A: The LMX2430TMX is Obsolete, indicating Texas Instruments no longer manufactures it. The LMX2430TMX/NOPB maintains Active status, ensuring continued availability and supply chain support.

Q: Are regulatory certifications identical?

A: Yes. Both parts are ROHS3 Compliant and REACH Unaffected. No compliance differences exist between the variants.

Q: Can I mix these parts in the same production run?

A: Yes. Electrical and mechanical specifications are identical, permitting interchangeable use within the same assembly.