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LMH2110

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具有 45dB 动态范围的 8GHz 对数 RMS 功率检测器

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LMH2110

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产品详情

Frequency (min) (MHz) 50 Frequency (max) (MHz) 8000 Type RMS Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 5 Supply current (µA) 4800 Number of channels 1 Dynamic range (typ) (dB) 45 Operating temperature range (°C) -40 to 85 Rating Catalog
Frequency (min) (MHz) 50 Frequency (max) (MHz) 8000 Type RMS Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 5 Supply current (µA) 4800 Number of channels 1 Dynamic range (typ) (dB) 45 Operating temperature range (°C) -40 to 85 Rating Catalog
DSBGA (YFQ) 6 1.4000000000000001 mm² 1.4000000000000001 x 1
  • 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
  • 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.

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.
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类型 标题 下载最新的英语版本 日期
* 数据表 LMH2110 8-GHz Logarithmic RMS Power Detector with 45-dB Dynamic Range 数据表 (Rev. D) PDF | HTML 2015年 6月 30日
应用手册 使用 LMH2110 检测 VSWR PDF | HTML 英语版 PDF | HTML 2023年 11月 20日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
应用手册 AN-2014 LMH2110 Evaluation Board (Rev. B) 2014年 7月 7日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

LMH2110TMEVAL — LMH2110 评估板

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 (...)

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参考设计

TIDA-00897 — 用于 WLAN 应用的高精度对数 RMS 功率检测器参考设计

动态发射功率控制对于在无线局域网 (WLAN) 中提高频谱效率和减少相邻信道干扰至关重要。此外，全球各地的监管机构都要求将发射功率限制在一定水平，以便减少对其他通信设备的干扰。在 WLAN 系统中控制发射功率的另一个好处是，可以通过降低功率放大器的电源电压来延长电池寿命。此参考设计展示了针对 WLAN 应用的闭环动态发射功率控制。尽管此特定设计实现的是 WLAN 发射功率控制，但对于其他无线技术（例如 LTE），也可使用类似的概念来实施功率控制方案。

发射功率控制的应用范围非常广泛：从移动手持设备到工业再到汽车应用均适用。例如，LMH2110 可用于汽车电子产品，从而满足 LTE 或 WiFi (...)

设计指南: PDF
原理图: PDF
封装 引脚 下载
DSBGA (YFQ) 6 查看选项
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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