描述 Description

The QPB9331 is a highly integrated Receiver (Rx) Low Noise Variable Gain Amplifier module. It is suitable for common Rx design to replace major active components in front of the mixer. It is targeted for Rx designs restricted in size. A 6-bit digital step attenuator (DSA) integrated in between the first LNA and the second high linear LNA provides 19dB gain control capability to handle wide dynamic range of Rx input signal while maintaining optimum noise figure, gain and linearity. An integrated I2C control interface circuit enables 2-wire communication from host system with 3-bit multi module address capability. The QPB9331 is also featured with a built-in temperature sensor and a nonvolatile memory to store production and temperature data.
The QPB9331 amplifier stages utilize Qorvo’s high performance E-pHEMT process and packaged in a RoHS-compliant, compact 8x8 mm surface-mount leadless package.

特性 Features

·Frequency Range 703 - 915 MHz
·Integrated LNA, digital step attenuator, linear drive amplifier, I2C controller, temperature sensor and non-volatile memory
·5 V DC supply with power saving mode
·22 to 35 dB Gain Range
·0.95 dB Noise Figure at maximum gain
·36 dBm OIP3
·>14 dB I/O Return Loss
·Unconditionally Stable
·Compact Package Size, 8x8 mm
·Same Pin assignment as QPB9330, QPB9332 and QPB9336

應用 Application

·Wireless Infrastructure
·Macro or Picocell Base Stations
·FDD-based Architectures