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Product Overview
The LMX2581SQX/NOPB is a high-performance, wideband frequency synthesizer from Texas Instruments, integrating a phase-locked loop (PLL) and voltage-controlled oscillator (VCO) in a compact 32-WQFN (5x5) package. It operates from 20 MHz to 3.6 GHz, delivering exceptional phase noise performance of -160 dBc/Hz at 100 kHz offset (1 GHz carrier). The device supports integer-N and fractional-N modes, making it ideal for demanding RF applications.
Detailed Technical Specifications
| Parameter |
Value |
| Frequency Range |
20 MHz to 3.6 GHz |
| Phase Noise (1 GHz, 100 kHz offset) |
-160 dBc/Hz |
| Supply Voltage |
3.15 V to 3.45 V |
| Current Consumption |
150 mA (typical) |
| PLL Figure of Merit |
-230 dBc/Hz |
| Output Power |
+5 dBm (typical) |
| Package |
32-WQFN (5x5 mm) |
| Operating Temperature |
-40°C to +85°C |
Key Features
- Wide frequency range: 20 MHz to 3.6 GHz
- Ultra-low phase noise: -160 dBc/Hz at 100 kHz offset (1 GHz)
- Integrated VCO with low pushing/pulling
- Fractional-N and integer-N modes
- Fast settling time: < 50 µs
- Programmable output power
- 3-wire SPI interface
- Power-down mode for power saving
Target Applications
- 5G base stations (e.g., massive MIMO transceivers)
- Wireless infrastructure (e.g., remote radio heads)
- Test and measurement equipment (e.g., spectrum analyzers)
- Radar systems (e.g., automotive radar modules)
- Satellite communications (e.g., VSAT terminals)
- Software-defined radios (SDRs)
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LMX2581SQX/NOPB. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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BOM Kitting & Sampling Services: Specialized sourcing for
testing samples and urgent shortage components.
Quality Assurance & Compliance
Jasin Chip guarantees that all delivered products are 100% original factory stock
with full quality assurance and traceability.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
LMX2581SQX/NOPB 是德州儀器(TI)推出的一款高性能寬帶頻率合成器,集成鎖相環(PLL)和壓控振盪器(VCO),採用緊湊的 32-WQFN(5x5)封裝。其工作頻率範圍為 20 MHz 至 3.6 GHz,在 1 GHz 載波、100 kHz 偏移處提供 -160 dBc/Hz 的卓越相位噪聲性能。該器件支持整數 N 和分數 N 模式,非常適合要求苛刻的射頻應用。
詳細技術參數
| 參數 |
數值 |
| 頻率範圍 |
20 MHz 至 3.6 GHz |
| 相位噪聲(1 GHz,100 kHz 偏移) |
-160 dBc/Hz |
| 電源電壓 |
3.15 V 至 3.45 V |
| 電流消耗 |
150 mA(典型值) |
| PLL 品質因數 |
-230 dBc/Hz |
| 輸出功率 |
+5 dBm(典型值) |
| 封裝 |
32-WQFN(5x5 mm) |
| 工作溫度 |
-40°C 至 +85°C |
核心特性
- 寬頻率範圍:20 MHz 至 3.6 GHz
- 超低相位噪聲:-160 dBc/Hz @ 100 kHz 偏移(1 GHz)
- 集成 VCO,低推頻/低拉頻
- 分數 N 和整數 N 模式
- 快速鎖定時間:< 50 µs
- 可編程輸出功率
- 3 線 SPI 接口
- 關斷模式以節省功耗
典型應用場景
- 5G 基站(例如大規模 MIMO 收發器)
- 無線基礎設施(例如遠程射頻頭)
- 測試與測量設備(例如頻譜分析儀)
- 雷達系統(例如汽車雷達模塊)
- 衛星通信(例如 VSAT 終端)
- 軟件定義無線電(SDR)
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 LMX2581SQX/NOPB 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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全天候環球客戶支援:專業團隊為您提供即時報價及技術支援,無需漫長等待。
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現貨庫存,即日發貨:確保現貨充足。下午 4 點前確認訂單,即可安排當天寄出。
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Jasin Chip 承諾所有出貨產品均為原廠正貨,具備完善的品質保證及產品可追溯性。
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原廠封裝保護:嚴格保留原廠原始包裝及封條,確保物流過程中的靜電防護 (ESD) 與物理安全。
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