LMX2531
- Multiple Frequency Options Available
- See Device Information Table
- Frequencies From: 553 MHz to 3132 MHz
- PLL Features
- Fractional-N Delta-Sigma Modulator Order
Programmable up to Fourth Order - FastLock/Cycle Slip Reduction with Timeout
Counter - Partially Integrated, Adjustable Loop Filter
- Very Low Phase Noise and Spurs
- Fractional-N Delta-Sigma Modulator Order
- VCO Features
- Integrated Tank Inductor
- Low Phase Noise
- Other Features
- 2.8-V to 3.2-V Operation
- Low Operating Current
- Low Power-Down Current
- 1.8-V MICROWIRE Support
- 36-Pin 6-mm × 6-mm × 0.8-mm WQFN Package
The LMX2531 is a low-power, high-performance frequency synthesizer system which includes a fully integrated delta-sigma PLL and VCO with fully integrated tank circuit. The third and fourth poles are also integrated and adjustable. Ultra-low noise and high-precision LDOs are integrated for the PLL and VCO, which yield higher supply-noise immunity and more consistent performance. When combined with a high-quality reference oscillator, the LMX2531 device generates very stable, low-noise local-oscillator signals for up and down conversion in wireless communication devices. The LMX2531 device is a monolithic integrated circuit, fabricated in an advanced BiCMOS process. Several different versions of this product accommodate different frequency bands.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LMX2531 High-Performance Frequency Synthesizer System With Integrated VCO datasheet (Rev. S) | PDF | HTML | 2014/12/31 | ||
| 應用說明 | AN-1879 Fractional N Frequency Synthesis (Rev. B) | 2021/11/18 | ||||
| 應用說明 | AN-1558 Clocking High-Speed A/D Converters (Rev. B) | 2013/5/1 | ||||
| 應用說明 | AN-1821 CPRI Repeater System (Rev. A) | 2013/4/26 | ||||
| 應用說明 | Selecting Amplifiers, ADCs, and Clocks for High-Performance Signal Paths | 2007/9/13 | ||||
| 應用說明 | Generating Precision Clocks for Time- Interleaved ADCs | 2007/8/2 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
CODELOADER — CodeLoader Device Register Programming v4.19.0
The CodeLoader 4 software is used to program the LMX PLLs and LMK timing devices through either the USB or line print terminal (LPT) port of a computer. This software also provides information on how to program the device by showing the bits that are actually sent.
Which software do I use?
Product | (...) |
CLOCKDESIGNTOOL — Clock Design Tool Software
時脈設計工具軟體可協助進行零件選擇、迴路濾波器設計,以及計時裝置解決方案模擬。當您輸入所需的輸出頻率和參考頻率 (選用) 時,此工具可提供符合指定需求、分頻器值和建議迴路濾波器的 TI 裝置,以將抖動降到最低。
CLOCKDESIGNTOOL 教學影片
我應該使用哪個軟體?
產品 | 迴路濾波器和裝置配置 + 模擬 | 模擬工具 | 裝置暫存器程式化 |
LMX24xx PLL 系列 | EasyPLL | ||
LMX25xx PLL+VCO 系列 | 時脈設計工具 | ||
LMK 抖動清除器及分配器 |
TICSPRO-SW — TICS Pro GUI and Live Programming Tool for Clocking Devices
德州儀器 (TI) 的時鐘及合成器 (TICS) 專業級軟體用於編程具有以下前置字元的產品編號的評估模組 (EVM):CDC、LMK 和 LMX。這些產品包括鎖相迴路及電壓控制振盪器 (PLL+VCO)、合成器和時鐘裝置。
CLOCK-TREE-ARCHITECT — 時鐘樹架構程式設計軟體
時鐘樹架構是一款時鐘樹合成工具,可根據您的系統需求產生時鐘樹解決方案,進而簡化您的設計流程。此工具可從廣泛的計時產品資料庫中汲取資料,產生系統級多晶片計時解決方案。
PLLATINUMSIM-SW — PLL 迴路濾波器、相位雜訊、鎖定時間與雜散模擬工具
PLLATINUMSIM-SW 為一模擬工具,可讓使用者建立 PLLatinum™ 積體電路的詳細設計和模擬,包括 LMX 系列的相位鎖定迴路 (PLL) 及合成器。
TIDA-00479 — 適用於 GSPS ADC 的最佳時鐘來源參考設計
ADC12D1600RFRB 參考設計提供了一個平台,用於展示包含時脈、電源管理和訊號處理的高速數位器應用。此參考設計採用 1.6 GSPS ADC12D1600RF 裝置、板載 FPGA Xilinx Virtex 4 和高效能時脈合成器 LMX2531,以滿足 9 位元 ENOB 高速數位器的系統需求。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (NJH) | 36 | Ultra Librarian |
| WQFN (NJG) | 36 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。