A good PCB layout for the LMK04828BISQX/NOPB involves separating the analog and digital grounds, using a solid ground plane, and keeping the clock and data lines as short as possible. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
The LMK04828BISQX/NOPB can be configured using the SPI interface. The device has a set of registers that control the clock frequency, output format, and other parameters. The specific configuration will depend on the application requirements, but the datasheet provides a detailed description of the registers and their functions.
The LMK04828BISQX/NOPB can generate clock frequencies up to 3072 MHz. However, the maximum frequency may be limited by the specific application and the quality of the external clock source.
To ensure low jitter, it's essential to use a high-quality external clock source, such as a crystal oscillator or a high-stability clock source. Additionally, the PCB layout should be designed to minimize noise and ensure good signal integrity. The LMK04828BISQX/NOPB also has built-in features such as phase-locked loop (PLL) filtering and noise shaping to help reduce jitter.
Yes, the LMK04828BISQX/NOPB can be used in a redundant clocking system for high-reliability applications. The device has a built-in clock redundancy feature that allows it to automatically switch to a backup clock source in case of a failure. This feature can be configured using the SPI interface.
LMK04828BISQX/NOPB datasheet
by Texas Instruments
