LMX2581ESQE/NOPB Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
The LMX2581ESQE/NOPB is a wideband frequency synthesizer with integrated VCO from Texas Instruments in a 32-pin WQFN package. Key specs: PLL-based architecture with up to 3.8 GHz output frequency, -40 to 85 degrees C operating range, and low jitter performance for RF and communications systems. Available RoHS e3 compliant with in-stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 33
- Lifecycle
- ACTIVE
- Datasheet
- LMX2581ESQE/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $10.8000(MOQ 25)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LMX2581ESQE/NOPB?
- Wideband PLL frequency synthesizer with integrated VCO covering up to 3.8 GHz output frequency eliminates external VCO components and simplifies RF board design
- Phase-locked loop architecture with low phase noise and jitter cleaning capability ensures high spectral purity for demanding RF communications and test equipment
- Operating temperature range of -40 to 85 degrees C supports use in both commercial and industrial wireless and instrumentation applications
- Compact 32-pin WQFN package with integrated heat slug provides excellent thermal performance for continuous high-frequency operation in space-constrained RF modules
What is LMX2581ESQE/NOPB used for?
The LMX2581ESQE/NOPB is used in RF communication systems including cellular base stations, wireless infrastructure equipment, and software-defined radios where a clean, agile frequency reference up to 3.8 GHz is required. It is also deployed in test and measurement instruments such as signal generators and spectrum analyzers where low phase noise and wide frequency coverage are essential. The integrated VCO and jitter cleaning function further make it suitable for clock distribution in high-speed data converters and SERDES interfaces.
What are the specifications of LMX2581ESQE/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | PHASE LOCKED LOOP |
| JESD-30 Code | S-PQCC-N32 |
| JESD-609 Code | e3 |
| Output Frequency-Max | 3800MHz |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC32,.2SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the LMX2581ESQE/NOPB datasheet?
LMX2581ESQE/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LMX2581ESQE/NOPB?
Compatible alternatives and drop-in replacements for LMX2581ESQE/NOPB:
Texas Instruments Phase Locked Loop, PQCC32
Frequently Asked Questions
What is the LMX2581ESQE/NOPB and what are its key specifications?
The LMX2581ESQE/NOPB is a wideband frequency synthesizer with integrated VCO from Texas Instruments, based on a phase-locked loop (PLL) architecture. Key specifications include a maximum output frequency of 3.8 GHz, an operating temperature range of -40 to 85 degrees C, and a 32-pin WQFN package (JESD-30 code S-PQCC-N32). It is RoHS compliant per JESD-609 e3 with a lead-free construction.
What applications is the LMX2581ESQE/NOPB designed for?
The LMX2581ESQE/NOPB is optimized for RF and microwave frequency synthesis in applications such as cellular infrastructure, point-to-point microwave links, test and measurement equipment, and software-defined radio platforms. Its integrated VCO and wideband 3.8 GHz coverage reduce board complexity and enable compact, low-phase-noise clock generation for demanding RF system designs.
Does the LMX2581ESQE/NOPB include an integrated VCO?
Yes, the LMX2581ESQE/NOPB integrates a voltage-controlled oscillator (VCO) on-chip, which eliminates the need for an external VCO and associated matching components. This integration simplifies RF board layout, reduces component count, and improves phase noise performance by minimizing parasitic effects from external VCO interconnects, making it a cost-effective solution for wideband frequency synthesis up to 3.8 GHz.
What package does the LMX2581ESQE/NOPB use and what is the thermal performance?
The LMX2581ESQE/NOPB uses a 32-pin WQFN (Very Thin Profile Quad Flat No-Lead) package with a square LCC32 footprint measuring approximately 0.2 by 0.2 inches (JESD-30 code S-PQCC-N32). The package includes an integrated heat sink slug on the underside, which provides efficient thermal dissipation during continuous RF operation, making it well-suited for high-frequency synthesizer designs with moderate power dissipation.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $13.1000 | $327.50 |
| 250+ | $10.8000 | $2700.00 |
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