Renesas introduces low quiescent current RF amplifier

The company says the F1490 RF amplifier has low quiescent current of just 75mA to save power in 4G/5G infrastructure systems. This is much lower than competitive amplifiers, says Renesas Electronics.

The F1490 is a second-generation high-gain, two-stage RF amplifier that covers the key sub-6GHz 5G frequency bands from 1.8 to 5.0GHz. It delivers high gain with selectable modes and low power consumption. It also maintains high OP1dB performance and 2.4dB noise figure, to meet the system-level requirements of a MIMO 5G pre-driver, said Naveen Yanduru, vice president of RF Communications, Industrial and Communications division at Renesas. “We are excited to continue driving LTE and 5G innovation with our RF amplifier solutions for active antenna systems (AAS), 4G/5G base stations, and other wireless communications equipment,” he added.

The amplifier is designed to operate within the 1.8 to 5.0GHz frequency range and has high gain, high linearity, and wide bandwidth. It is suitable for use with both frequency division duplex (FDD) and time division duplex (TDD) sub-6GHz 5G applications. The F1490 is pin-to-pin compatible with current devices which contributes to lower design cost, says Renesas.

The F1490 has two selectable gain modes – 39.5dB high gain or 35.5dB low gain. It has high performance OIP3 of 38dBm and OP1dB of 24dBm and an operating temperature of +115 degrees C.

Today’s higher data rates drive the need for better radio signal-to-noise ratios, explains Renesas. The company’s patented RF product portfolio addresses the evolving needs of a range of applications, including cellular 4G/5G base stations, communications systems, microwave (RF/IF), CATV, and test and measurement equipment. Renesas’ AAS range includes interface amplifiers, low noise amplifiers, switches and pre-drivers to address the high performance transmit and receive requirements of massive MIMO with the highest efficiencies in the smallest form factors, according to Renesas.

Samples of the F1490 are available now in a 3.0 x 3.0mm, 16-pin QFN package. Mass production will be available in September 2020.

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