Semiconductor company Panasonic Corporation, based in Japan, has devel- oped the industry’s first very high-frequency (VHF) and ultra- high-frequency (UHF) low-noise amplifiers (LNAs) for mobile devices to operate at voltages as low as 1.7 V. The company began sample shipments in late March this year.
Orthogonal frequency division multiplexing large-scale integrations that receive signals from an LNA have adopted the finer processes and have reduced the power supply voltage. This trend has eliminated 2.8 V power supply as the standard power supply within a mobile terminal. Conventional LNAs have required separate amplifiers for each band of UHF and VHF.
Panasonic’s new single-chip LNAs can handle VHF and UHF bands and operate at low voltages, eliminating the need for a 2.8 V power supply. This allows mobile terminals to receive one-segment broadcasts, multimedia broadcasts and an Advanced Television Systems Committee service in North America.
The LNAs enable mobile terminals to receive signals in areas subject to weak radio waves, for a longer time.
LNAs can be used with a range of power supply voltages, from 1.7 V to 3.0 V. They operate at the terminal’s standard voltage (1.8 V) and help reduce costs by eliminating the need for external 2.8 V regulators.
High-performance characteristics and low power consumption LNAs use about 20% less power and high-frequency characteristics have been achieved with a noise level of 1.3 dB. These features allow stable signals to be received for longer.