LMV232
- >20 dB Square-Law Detection Range
- 2 Sequentially Selectable RF Inputs
- Low Power Consumption Shutdown Mode
- Externally Configurable Gain and LF Filter Bandwidth.
- Internal 50Ω RF Termination Impedance
- Optimized for Use with 20 dB Directional Coupler
- Lead Free 8-Bump DSBGA Package 1.5 x 1.5 x 0.6 mm
The LMV232 dual RF detector is designed for RF transmit power measurement in mobile phones. This dual mean square IC is especially suited for accurate power measurement of RF signals exhibiting high peak-to-average ratios used in 3G and UMTS/CDMA applications. The LMV232 saves calibration steps and system certification and is highly accurate. The circuit operates with a single supply from 2.5 to 3.3V.
The LMV232 contains a mean square detector with two sequentially selectable RF inputs. The RF input power range of the device has been optimized for use with a 20 dB directional coupler, without the need for additional external components. A single external RC combination between FB and OUT provides an externally configurable gain and LF filter bandwidth of the device.
The device has two digital interfaces. A shutdown function is available to set the device in a low-power shutdown mode. In case SD = HIGH, the device is in shutdown, if SD = LOW the device is active. The Band-Select function controls the selection of the active RF input channel. In case BS = HIGH, RFIN1 is active. In case BS = LOW, RFIN2 is active.
The dual mean square detector is offered in an 8-bump DSBGA 1.5 x 1.5 x 0.6 mm package. This DSBGA package has the smallest footprint and height.
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 | LMV232 Dual-Channel Integrated Mean Square Power Detector for CDMA & WCDMA datasheet (Rev. C) | 2013/3/27 | |||
| 使用指南 | AN-1806 LMV232 Evaluation Board (Rev. A) | 2013/4/30 | ||||
| 應用說明 | AN-1434 Crest Factor Invariant RF Power Detector (Rev. A) | 2013/4/30 | ||||
| 應用說明 | Base Station Closed-Loop RF Pwr Cntrl w/LMV232 Crest-Factor Invariant Detector (Rev. A) | 2013/4/30 |
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)。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YZR) | 8 | 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。