A good PCB layout for the LMK03002CISQ/NOPB involves keeping the clock input traces as short as possible, using a solid ground plane, and minimizing the distance between the device and the crystal oscillator. Additionally, it's recommended to use a 4-layer PCB with a dedicated ground plane to reduce noise and EMI.
To ensure proper power and decoupling, use a low-ESR capacitor (e.g., 0.1 μF) between VCC and GND, and a 10 μF capacitor between VCC and GND for bulk decoupling. Also, ensure that the power supply is clean and regulated, and that the device is operated within the recommended voltage range (1.8V to 3.6V).
The LMK03002CISQ/NOPB can tolerate a maximum frequency deviation of ±50 ppm from the nominal frequency. Exceeding this limit may affect the device's performance and accuracy.
To configure the LMK03002CISQ/NOPB for a specific clock frequency, use the device's internal PLL to multiply the input frequency. The PLL can be programmed using the device's control registers. Consult the datasheet for specific register settings and calculations to achieve the desired output frequency.
The recommended crystal oscillator frequency range for the LMK03002CISQ/NOPB is between 10 MHz and 40 MHz. Operating outside this range may affect the device's performance and accuracy.
LMK03002CISQ/NOPB datasheet
by Texas Instruments
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