BAW is a micro-resonator technology that enables the integration of high-precision and ultra-low jitter clocks directly into packages that contain other circuits. In the LMK6C and CDC6CLVCMOS oscillators, BAW is integrated with a co-located precision temperature sensor, a ultra-low jitter, low power output divider, and a small power-reset-clock management system consisting of several low noise LDOs.
Figure 1 shows the structure of the BAW resonator technology. The structure includes a thin layer of piezoelectric film sandwiched between metal films and other layers that confine the mechanical energy. The BAW utilizes this piezoelectric transduction to generate a vibration.
Motor drive systems are used in many industrial and manufacturing applications. These systems require precise control of position, torque, and speed for robust and reliable performance. Many applications such as AC inverter and VF drives, single and multi-axis servo drives, and stepper drives rely on EtherCAT® to transmit data to the host processor, which requires a reliable clocking architecture to achieve the best performance. Figure 2 shows a common clocking architecture for standard EtherCAT applications.
TI's BAW oscillators have many benefits including the following:
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