Panasonic has developed the VHF/UHF low-noise amplifiers (LNA) (part numbers: AN26072A and AN26021A) for mobile devices to operate at voltages as low as 1.7 V. Panasonic’s new single-chip LNAs can handle both VHF and UHF bands and operate at low voltages, eliminating the need for a 2.8 V power supply for OFDM receivers. These Panasonic LNAs allow mobile terminals to receive one-segment broadcasts, multimedia broadcasts, and an ATSC-M/H service. The LNAs have also enabled mobile terminals to receive signals even in areas subject to weak radio waves, for a longer time.

Orthogonal frequency division multiplexing (OFDM) LSIs, that receive signals from an LNA, have adopted the finer processes and have reduced the power supply voltage. This industry trend has eliminated 2.8 V power supplies as the standard power supply within a mobile terminal. Moreover, conventional low-noise amplifiers have required separate amplifiers specific to each band of VHF and UHF.

The new Panasonic LNAs have the following features:

  • Low-voltage power supplies. Low-Noise amplifiers can be used with a wide range of power supply voltages, from 1.7 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.
  • Single-chip LNAs support a wide range of VHF and UHF frequencies (40 to 900 MHz). The one-chip LNA reduces the number of components required, as well as reduces the size of the mounting board by approximately 40%, thereby allowing mobile terminals to be smaller and more compact.
  • High-performance characteristics and low power consumption. Stable signals can be received for a longer time.

The Panasonic low-noise amplifiers were made possible through the following technologies:

  • High-frequency circuit technologies that support a wide range of power supply voltages, especially low supply voltages
  • Technologies that expand the operating frequency range using feedback circuits
  • Power consumption reduction technologies that offer high performance with low power consumption