This is an RF Transmitter with a QFN package.It is possible to maintain RF Transmitter operation at a maximum temperature of 105°C°C.At a minimum working temperature of -40°C degrees Celsius, it maintains reliability.5.5V is the optimal supply voltage for maximum efficiency.
ATA5780N-PNQW18 Features
QFN package Minimum of -40°C°C
ATA5780N-PNQW18 Applications
There are a lot of Atmel (Microchip Technology) ATA5780N-PNQW18 RF Transmitter applications.