Pin reconfigurable baw filters

Radio frequency (RF) front-end circuitry, comprising:

• a first transceiver chain that includes a first bulk acoustic wave (BAW) filter, the first BAW filter having a filter design defining a set of external pins;
• a second transceiver chain that includes a second BAW filter, the second BAW filter having the same filter design and thus also defining a set of external pins;
• wherein a first combination of one or more pins in the set of external pins of the first BAW filter are hardwired in the first transceiver chain;
• wherein a second combination of one or more pins in the set of external pins of the second BAW filter are hardwired in the second transceiver chain;
• and
• wherein the first combination is different than the second combination.

A method of manufacturing radio frequency (RF) front-end circuitry comprising:

• forming a first transceiver chain that includes a first bulk acoustic wave (BAW) filter, the first BAW filter having a filter design;
• forming a first transceiver chain that includes a first bulk acoustic wave (BAW) filter, the first BAW filter having a filter design;
• hardwiring a first combination of the external pin configuration of one or more external pins in the set of external pins of the first BAW filter in the first transceiver chain;
• hardwiring a second combination of the external pin configuration of one or more external pins in the set of external pins of the second BAW filter in the second transceiver chain such that the first combination of the external pin configuration is different than the second combination of the external pin configuration.

A user element comprising radio frequency (RF) front-end circuitry, the RF front-end circuitry comprising:

• a first transceiver chain that includes a first bulk acoustic wave (BAW) filter, the first BAW filter having a filter design;
• a second transceiver chain that includes a second BAW filter having a same filter design as the first BAW filter, wherein the filter design includes:
• a network of BAW resonators such that the first BAW filter includes a network of BAW resonators and the second BAW filter includes a network of BAW resonators with a same BAW network configuration;
• and
• a set of external pins such that that the first BAW filter includes a set of external pins and the second BAW filter includes a set of external pins with a same external pin configuration;
• wherein a first combination of the external pin configuration of one or more external pins in the set of external pins of the first BAW filter is hardwired in the first transceiver chain;
• and
• wherein a second combination of the external pin configuration of one or more external pins in the set of external pins of the second BAW filter is hardwired in the second transceiver chain such that the first combination of the external pin configuration is different than the second combination of the external pin configuration.