Configurable transmit-receive switch for a transceiver

An integrated circuit comprising:

• a receiver pad to receive an incoming radio frequency (RF) signal;
• a first inductor coupled to the receiver pad;
• a second inductor coupled to the first inductor at an inter-inductor node;
• a first electrostatic discharge (ESD) circuit coupled to the inter-inductor node;
• a second ESD circuit coupled to the second inductor;
• a low noise amplifier (LNA) coupled to the second inductor to receive and amplify the incoming RF signal;
• a transmit-receive (TR) switch coupled to the LNA, wherein:
• when the integrated circuit is implemented in a wireless device having an external TR switch, the TR switch is controlled to be in an opened state;
• and
• when the integrated circuit is implemented in a wireless device not having an external TR switch, the TR switch is controlled be in the opened state during a receive mode in which the LNA is to receive the incoming RF signal and in a closed state during a transmit mode;
• a transmit pad to output an outgoing RF signal during the transmit mode;
• and
• a power amplifier (PA) coupled to the transmit pad to amplify and output the outgoing RF signal to the transmit pad.

A system comprising:

• a diplexer to direct radio frequency (RF) signals of a first band to a first matching circuit and direct RF signals of a second band to a second matching circuit;
• the first matching circuit coupled to the diplexer;
• the second matching circuit coupled to the diplexer;
• and
• an integrated circuit coupled to the first matching circuit and the second matching circuit, the integrated circuit having at least a first transceiver, the first transceiver comprising:
• a receiver pad, in a receive mode, to receive a first RF signal of the first band;
• a first inductor coupled to the receiver pad;
• a second inductor coupled to the first inductor at an inter-inductor node;
• a first electrostatic discharge (ESD) circuit coupled to the inter-inductor node;
• a second ESD circuit coupled to the second inductor;
• a low noise amplifier (LNA) coupled to the second inductor to receive and amplify the first RF signal of the first band;
• a transmit-receive (TR) switch coupled to the LNA, wherein in the receive mode, the TR switch is to enable the LNA to receive the first RF signal of the first band;
• a transmit pad, in a transmit mode, to output a second RF signal of the first band;
• and
• a power amplifier (PA) to amplify the second RF signal of the first band, wherein in the transmit mode, the TR switch is to isolate the LNA.