Abstract: A golf club head that is capable of preserving the metallic acoustic signature of an entirely metallic golf club head all while utilizing a lightweight composite material is disclosed herein. More specifically, the golf club head in accordance with the present invention creates a frontal acoustic chamber in conjunction with a rear weight saving chamber via a panel member barrier is disclosed. The panel member may even be combined with an optimized thickness relationship at the transition region between the striking face portion and the panel member to further optimize the performance of the golf club head.

Abstract: A GPIO includes a transmitter having an output stage connected to the I/O pad and adapted to supply transmit data to an I/O pad in response to output data generated by a low voltage core logic operating within a functional voltage range for transmit operations; a receiver adapted to supply receive data to the low voltage core logic operating within the functional voltage range in response to input data received at the I/O pad for receive operations; a VLV transmitter adapted to supply VLV transmit data to the output stage of the transmitter and not directly to the I/O pad in response to output test data generated by the low voltage core logic; and a VLV receiver adapted to supply VLV receive data to the low voltage core logic operating within a low core supply voltage range in response to input data received from the output stage of the transmitter.

Abstract: A method and circuit for trimming a current source packaged with a device can facilitate trimming of the current source without the need for additional pins or dual function pins, resulting in improved accuracy and/or simplified trimming techniques. An exemplary packaged device is configured with a trimming circuit comprising a current trimming network and a coupling circuit. An exemplary packaged device can comprise any op amp, current or voltage reference, and/or sensor device, and is configured with one or more monitor inputs. An exemplary current trimming network comprises a variable current source and a reference current source, wherein a magnitude of the variable current source can be compared to the magnitude of the reference current source. An exemplary coupling circuit is coupled between the current trimming network and the device and is configured for enabling and disabling connection of an output of the current trimming network and a monitor input of the device.