Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital grounds separate. Additionally, it's essential to minimize the distance between the DS9637ACMX and the crystal oscillator, and to use a low-ESR capacitor for the VCC pin.
To ensure accurate clock frequency output, it's crucial to select a high-quality crystal oscillator with a frequency tolerance of ±20 ppm or better. Additionally, the DS9637ACMX requires a stable power supply, and the VCC pin should be decoupled with a 0.1 μF capacitor.
The DS9637ACMX can generate clock frequencies up to 100 MHz. However, the maximum frequency is dependent on the specific application and the quality of the external crystal oscillator.
The DS9637ACMX can be configured for a specific clock frequency output by selecting the appropriate values for the R1 and R2 resistors, and the C1 and C2 capacitors. The Texas Instruments datasheet provides a detailed calculation formula and example values for common clock frequencies.
The power consumption of the DS9637ACMX is typically around 20 mA, but it can vary depending on the specific application, clock frequency, and operating conditions. The device has a low-power shutdown mode that can reduce the power consumption to less than 1 μA.
DS9637ACMX datasheet
by Texas Instruments
