LMV221
- 2.7-V to 3.3-V Supply Voltage
- 40-dB Linear in dB Power Detection Range
- 0.3-V to 2-V Output Voltage Range
- Shutdown
- Multi-Band Operation from 50 MHz to 3.5 GHz
- 0.5-dB Accurate Temperature Compensation
- External Configurable Output Filter Bandwidth
- 2.5 mm × 2.2 mm × 0.8 mm 6-pin WSON Package
The LMV221 is a 40-dB RF power detector intended for use in CDMA and WCDMA applications. The device has an RF frequency range from 50 MHz to 3.5 GHz. It provides an accurate temperature and supply-compensated output voltage that relates linearly to the RF input power in dBm. The circuit operates with a single supply from 2.7 V to 3.3 V.
The LMV221 has an RF power detection range from −45 dBm to −5 dBm and is ideally suited for direct use in combination with a 30-dB directional coupler. Additional low-pass filtering of the output signal can be achieved by means of an external resistor and capacitor. shows a detector with an additional output low pass filter. The filter frequency is set with RS and CS.
shows a detector with an additional feedback low pass filter. Resistor RP is optional and lowers the trans-impedance gain (RTRANS). The filter frequency is set with CP//CTRANS and RP//RTRANS.
The device is active for Enable = 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.
For all available packages, see the orderable addendum at the end of the data sheet.技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | LMV221 50-MHz to 3.5-GHz 40-dB Logarithmic Power Detector for CDMA and WCDMA 数据表 (Rev. D) | PDF | HTML | 2016-6-1 | ||
| 证书 | LMV221EVM EU Declaration of Conformity (DoC) | 2024-12-16 | ||||
| 用户指南 | Evaluation Board for the LMV221 Logarithmic Power Detector (Rev. A) | 2013-4-22 |
设计与开发
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| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WSON (NGF) | 6 | Ultra Librarian |
订购和质量
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