Variable Gain Amplifiers

PRODUCTS AND SERVICES

ETL Systems offers a series of fixed-gain tubular amplifiers with 10, 15, 20, 25 or 30 dB gain that operate in the L-band (850-2150 MHz). These amplifiers are available in DC pass biased from either RF port, DC block biased from output port, 10 MHz and DC pass biased from either RF port, DC blocked biased from input port, 10 MHz and DC block biased from output port, or 10 MHz and DC block from input port. Typical field applications for these devices include telecom infrastructures, satellite systems, microwave links, test and instrumentation, military communications, and radar networks.

For more information on the different specifications and RF parameters, download the available datasheets.

RFMD’s RFDS0045 is a Digital Controlled Variable Gain Amplifier operating in the 10MHZ to 850MHZ frequency range. It features SPI serial control programming, a max gain of 44dB at 150MHz, a gain control range of 31.5dB (0.5dB Step Size), high OIP3 of 42dBm at 150MHz, high P1dB = 20dBm at 150MHz, a single +5V supply, a small 32-Pin, 5.2mm x 5.2mm MCM, a footprint compatible with 5mm x 5mm, 32-Pin QFN, and power-up programming. This amplifier is ideal for Transceiver IF DVA, Cellular, PCS, GSM, UMTS, Wireless Data, and Satellite Terminal applications.

ETL Systems offers a series of Variable Gain Amplifiers operating in the L-band (850-2150 MHz). These amplifiers have 0 to 30 dB gain settable in 1 dB gain steps with a built in regulator. Model options are available with end-to-end connectors or connectors on the same face, and are either in-line powered or externally powered. Field applications for these devices include telecom infrastructures, satellite systems, microwave links, test and instrumentation, military communications, and radar networks.

The device provides an exceptionally high OIP3 level which is maintained over a wide attenuation range.
FEATURES
  • Gain can be adjusted continuously (0–15 dB) by applying a DC control voltage to the control pin with an external resistor in series (x 470 ohms)
The MPS-032701A-82 is an internally matched GaAs FET amplifier in a surface mount ceramic package. It is ideal for digital communications applications where excellent gain linearity and high efficiency at a 5 Volt bias is required.

The VGLA20RPDC GPS Variable Gain Line Amplifier is a one input, one output device featuring a variable gain block with 26dB of dynamic range.

This variable gain amplifier is ideal for broadband applications like cellular, 3G infrastructure, high linearity power control, WiBro, WiMax, LTE, and microwave radio. It has excellent linearity over a greater than 30dB gain control range and operates in the 400 MHz to 27000 MHz frequency range.