LMH2121
- Linear Response
- 40 dB Power Detection Range
- Very Low Supply Current of 3.4 mA
- Short Response Time of 165 ns
- Stable Conversion Gain of 3.6 V/VRMS
- Multi-Band Operation from 100 MHz to 3 GHz
- Very Low Conformance Error
- High Temperature Stability of ±0.5 dB
- Shutdown Functionality
- Supply Range from 2.6V to 3.3V
- Package:
- 4-Bump DSBGA, 0.4mm Pitch
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The LMH2121 is an accurate fast-responding power detector / RF envelope detector. Its response between an RF input signal and DC output signal is linear. The typical response time of 165 ns makes the device suitable for an accurate power setting in handsets during a rise time of RF transmission slots. It can be used in all popular communications standards: 2G/3G/4G/WAP.
The LMH2121 has an input range from −28 dBm to +12 dBm. Over this input range the device has an intrinsic high insensitivity for temperature, supply voltage and loading. The bandwidth of the device is from 100 MHz to 3 GHz, covering 2G/3G/4G/WiFi wireless bands.
As a result of the unique internal architecture, the device shows an extremely low part-to-part variation of the detection curve. This is demonstrated by its low intercept and slope variation as well as a very good linear conformance. Consequently the required characterization and calibration efforts are low.
The device is active for EN = High; otherwise it is in a low power consumption shutdown mode. To save power and allow for two detector outputs in parallel, the output (OUT) is high impedance during shutdown.
The LMH2121 is offered in a tiny 4-bump DSBGA package: 0.866 mm x 1.07 mm x 0.6 mm.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LMH2121 3GHz Fast-Responding Linear Pwr Detctr w 40dB Dynamic Range datasheet (Rev. A) | 2013年 3月 22日 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Application note | AN-2246 LMH2121 Evaluation Board (Rev. B) | 2013年 4月 30日 |
設計與開發
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LMH2121TMEVAL — LMH2121EVAL 功率偵測器射頻封包偵測器評估板/模組
The EVM operates with a single supply form 2.6V to 3.3V and has an LMH2121 RF power detection range from −28 dBm to +12 dBm. The board consist of a single LMH2121 along with external components soldered on a printed circuit board. (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YFQ) | 4 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
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。