LMV228 - 采用微型 SMD 封装的射频功率检测器，用于 CDMA 和 WCDMA

LMV228是TI德州仪器公司的一款无产品，LMV228是采用微型 SMD 封装的射频功率检测器，用于 CDMA 和 WCDMA，本站介绍了LMV228的封装应用图解、特点和优点、功能等，并给出了与LMV228相关的TI元器件型号供参考。

LMV228 - 采用微型 SMD 封装的射频功率检测器，用于 CDMA 和 WCDMA - 无 - 射频功率检测器 - 德州仪器

产品描述

The LMV225/LMV226/LMV228 are 30 dB RF power detectors intended for use in CDMA and WCDMA applications. The device has an RF frequency range from 450 MHz to 2 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 2.7V to 5.5V. The LMV225/LMV226/LMV228 have an integrated filter for low-ripple average power detection of CDMA signals with 30 dB dynamic range. Additional filtering can be applied using a single external capacitor.

The LMV225 has an RF power detection range from –30 dBm to 0 dBm and is ideally suited for direct use in combination with resistive taps. The LMV226/LMV228 have a detection range from –15 dBm to 15 dBm and are intended for use in combination with a directional coupler. The LMV226 is equipped with a buffered output which makes it suitable for GSM, EDGE, GPRS and TDMA applications.

The device is active for Enable = HI, otherwise it is in a low power consumption shutdown mode. During shutdown the output will be LOW. The output voltage ranges from 0.2V to 2V and can be scaled down to meet ADC input range requirements.

The LMV225/LMV226/LMV228 power detectors are offered in the thin 1.0 mm x 1.0 mm x 0.6 mm DSBGA package and the ultra thin 1.0 mm x 1.0 mm x 0.35 mm DSBGA package. The LMV225 and the LMV228 are also offered in the 2.2 mm x 2.5 mm x 0.8 mm WSON package.

产品特性

30 dB Linear in dB Power Detection Range
Output Voltage Range 0.2 to 2V
Logic Low Shutdown
Multi-Band Operation from 450 MHz to 2000 MHz
Accurate Temperature Compensation
Packages:
- DSBGA Thin 1.0 mm x 1.0 mm x 0.6 mm
- DSBGA Ultra Thin 1.0 mm x 1.0 mm x 0.35 mm
- WSON 2.2 mm x 2.5 mm x 0.8 mm(LMV225 and LMV228)

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