| 主权项 |
1. A transceiver configured to transmit data in a plurality of operating modes including a Wi-Fi mode and two or more different Bluetooth power modes, the transceiver comprising:
a first amplifier configured to amplify Bluetooth signals; a second amplifier configured to amplify Wi-Fi signals; an antenna coupled to the second amplifier; and a tunable load circuit, coupled between the first amplifier and the second amplifier, configured to provide a different load impedance for each of the plurality of operating modes, the tunable load circuit including:
two impedance paths coupled in parallel between output terminals of the first and second amplifiers, the two impedance paths comprising (i) a first impedance path including a first capacitor, one or more first transistors, and a second capacitor coupled in series between the output terminals of the first and second amplifiers, and (ii) a second impedance path including a third capacitor and a fourth capacitor coupled in series between the output terminals of the first and second amplifiers; anda number of shunt paths coupled between the tunable load circuit and ground potential, the number of shunt paths comprising (i) a first shunt path including a second transistor coupled between ground potential and a common node of the third and fourth capacitors, and (ii) a second shunt path including a third transistor and a fifth capacitor coupled in series between ground potential and the common node. |
