The Qorvo QPB0066 variable gain amplifier exhibits high linearity throughout its gain control range, and its noise figure (NF) is as low as 4.3 dB at its maximum gain state. The gain of the QPB0066 amplifier is controlled by a dual-channel 6-bit digital step attenuator, which is programmed via a 12-bit serial peripheral interface (SPI). The QPB0066 is packaged in a small 6.0mm x 6.0mm leadless laminate multi-chip module (MCM) with plated-through holes for heat dissipation, achieving ultra-low thermal resistance. This module is simple and easy to use, requiring only a few external DC modules and RF chokes. 

Characteristics 

Operating frequency range: 5 MHz to 500 MHz 

Dual-channel 6-bit digital step attenuator 

SPI Serial Control Programming 

Maximum gain: 44 dB (at 100 MHz) 

Gain control range: 63 dB (with a step size of 0.5 dB) 

High OIP3/P1dB: +38dBm / 22.6dBm 

+5V power supply is used for DSA, and +8V power supply is used for the amplifier with voltage drop resistor. 

Amplifier power supply current: 340mA 

Power consumption of each amplifier: 1980 mW 

Maximum RF input power: +16 dBm 

Operating temperature range: -40°C to +85°C 

Storage temperature range: -65°C to +150°C 

Power-on Programming 

28-pin, 6.0mm x 6.0mm MCM package 

Application

 

The return current of CATV in nodes and amplifiers 

Transceiver IF DVA 

Cellular, PC, GSM, UMTS 

Wireless data 

Satellite terminal 

High linearity power control