RF SiGe Front End Integrated Circuit
The T7024's low noise amplifier provides a very low noise figure (2.3 dB typ.) which together with the single-chip transceiver T2901 increases the overall sensitivity from -80 dBm to -90 dBm, and so exceeds the 100 meter Bluetooth requirements by 20 dB.
The power added efficiency (PAE) value is about 40% at 2.4 GHz, the current consumption is as low as 170 mA. Switching to standby mode helps to even further reduce the current consumption to 10 μA.
A programmable transmit/receive switch driver feeds the current through an external PIN diode into a lambda/4 transmission line. This saves external components such as a switching transistor or an antenna switch (e.g. GaAs IC) as required with other solutions.