LMH2110
- Wide Supply Range from 2.7 V to 5 V
- Logarithmic Root Mean Square Response
- 45-dB Linear-in-dB Power Detection Range
- Multi-Band Operation from 50 MHz to 8 GHz
- LOG Conformance Better than ±0.5 dB
- Highly Temperature Insensitive, ±0.25 dB
- Modulation Independent Response, 0.08 dB
- Minimal Slope and Intercept Variation
- Shutdown Functionality
- Tiny 6-Bump DSBGA Package
The LMH2110 is a 45-dB Logarithmic RMS power detector particularly suited for accurate power measurement of modulated RF signals that exhibit large peak-to-average ratios; that is, large variations of the signal envelope. Such signals are encountered in W-CDMA and LTE cell phones. The RMS measurement topology inherently ensures a modulation insensitive measurement.
The device has an RF frequency range from 50 MHz to 8 GHz. It provides an accurate, temperature and supply insensitive output voltage that relates linearly to the RF input power in dBm. The LMH2110 device has excellent conformance to a logarithmic response, enabling easy integration by using slope and intercept only, reducing calibration effort significantly. The device operates with a single supply from 2.7 V to 5 V. The LMH2110 has an RF power detection range from –40 dBm to 5 dBm and is ideally suited for use in combination with a directional coupler. Alternatively, a resistive divider can be used.
The device is active for EN = High; otherwise, it is in a low power-consumption shutdown mode. To save power and prevent discharge of an external filter capacitance, the output (OUT) is high-impedance during shutdown.
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 | LMH2110 8-GHz Logarithmic RMS Power Detector with 45-dB Dynamic Range datasheet (Rev. D) | PDF | HTML | 2015/6/30 | ||
| 應用說明 | VSWR Detection Using LMH2110 | PDF | HTML | 2023/11/16 | |||
| 應用說明 | AN-2014 LMH2110 Evaluation Board (Rev. B) | 2014/7/7 |
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)。
LMH2110TMEVAL — LMH2110 評估板
The evaluation board is designed to help the evaluation of the LMH2110, which is a 45 dB Logarithmic RMS power detector particularly suited for accurate power measurement of modulated RF signals that exhibit large peak-to-average ratios, i.e. large variations of the signal envelope. Such signals (...)
TSG06D00EVM — 6GHz 雙通道 RF 訊號產生器評估模組
TSG06D00EVM 是德州儀器提供的雙通道 6GHz RF 訊號產生器評估模組，專為需要小巧、可透過 USB 控制的 RF 來源的工程師而設計，適用於實驗室工作台、系統評估及自動化測試等應用。本裝置提供兩個半獨立的同調 RF 輸出通道，具有校準的功率輸出，以及可透過 USB-TMC 存取的完整 SCPI 命令集。
TIDA-00897 — 適用於 WLAN 應用的高準確度對數 RMS 功率偵測器參考設計
動態傳輸電源控制對於提升頻譜效率並減少無線區域網路 (WLAN) 中的鄰通道干擾至關重要。此外，全球各地的監管機構要求將傳輸功率限制在一定的水平，以減少對其他通訊設備的干擾。WLAN 系統中傳輸功率控制的另一個優點，是透過降低功率放大器的電源電壓來延長電池壽命。此參考設計為一適用 WLAN 應用的閉合迴路動態傳輸功率控制。雖然此特定設計實作 WLAN 傳輸功率控制，但類似概念可用於實作其他無線技術的電源控制方案，例如 LTE。
傳輸功率控制的應用範圍非常廣泛：從行動手持裝置到工業再到汽車應用。舉例來說，LMH2110 可運用在汽車電子產品中，以滿足 LTE 或 WiFi (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YFQ) | 6 | 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。