Multiband wireless communications for smart meters

November 12, 2019 //By Ally Winning
LAPIS Semiconductor has launched the low power ML7421 multiband (sub-1GHz/2.4GHz) wireless communication device, which is optimised for long distances.
LAPIS Semiconductor has launched the low power ML7421 multiband (sub-1GHz/2.4GHz) wireless communication device, which is optimised for long distances.

The new ML7421 delivers high-performance communication over both the sub-1GHz (400MHz to 960MHz) band and the 2.4GHz frequency band. It has stable wireless characteristics even under changing environmental parameters such as voltage and temperature fluctuations. Fluctuations over temperature (-40°C to +85°C) are only 0.5dB in TX output power and 1.0dB in RX sensitivity. The device’s DC/DC converter, high-efficiency class-E power amplifier and a high-speed radio wave check function cuts the average current consumption by 15% compared with other LAPIS products.

More information

https://www.lapis-semi.com/cgi-bin/MyLAPIS/regi/login.cgi

www.rohm.com/eu

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