Broadband differential input RF amplifier simplifies RF DAC

18th December 2015

IDT

Jordan Mulcare

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Datasheet

Integrated Device Technology has introduced a broadband differential input RF amplifier that greatly simplifies designs for transmitters utilising RF digital-to-analog converters (DACs) and/or integrated transceivers used in a wide variety of base stations and public safety infrastructure.

IDT’s latest RF offering, the F1423 integrates a high-performance amplifier and balun in one small package, providing a differential input that aligns with the standard differential Tx outputs of RF DACs and integrated transceivers. Together with its excellent wideband RF performance, this results in a much more streamlined transmitter design than competitive alternatives for today’s advanced wireless applications.

The F1423 delivers wide bandwidth - from 600 to 3000MHz - to address a variety of RF transmitter applications with a single device. Also, this high-performance amplifier delivers 13dB typical gain, 20dB Common-Mode-Rejection-Ratio (CMRR) and very high linearity of 42dBm OIP3 at 2000MHz.

“Today, the F1423 joins our rapidly expanding lineup of uniquely innovative RF products. The F1423, with its internal balun and matching, reduces solution area and cost and simplifies the transmitter design process,” said Chris Stephens, General Manager, IDT’s RF division. “IDT’s portfolio spans passive as well as active RF components and our use of proprietary innovative design technology enables us to deliver cost reducing, SNR-enhancing, highly reliable products in very small packages.”

The F1423 features a 50Ω differential RF input and 50Ω single-ended output with up to 22dBm of output power at 1dB compression. It is suited for the high crest factor, high bandwidth, complex modulated 2G, 3G, and 4G signals that are output from RF DACs and integrated transceivers. It operates with a single 5V supply at a typical supply current of 120mA.