Description:The MK2069-01 is a VCXO (Voltage Controlled Crystal Oscillator) based clock generator that offers system synchronization, jitter attenuation, and frequency multiplication or translation. It can accept an unstable, jittery input clock and provide a de-jittered, low phase noise output clock at a user determined frequency. The device's clock multiplication ratios are user selectable since all major PLL divider blocks can be configured through device pin settings. External PLL loop filter components allow tailo
Renesas provides a recommended PCB layout guide in their application note (R01AN2732EU0100) which includes thermal design considerations, such as keeping the thermal pad connected to a solid ground plane and using thermal vias to dissipate heat.
A reliable POR circuit can be implemented using an external voltage detector, such as the Renesas RP108 series, which provides a reset signal to the MK2069-01GILF during power-up and power-down sequences.
To ensure EMI and EMC compliance, follow Renesas' guidelines for PCB layout, component selection, and shielding. Additionally, consider using EMI filters, such as ferrite beads, and ensure that the MK2069-01GILF is properly decoupled with capacitors.
To optimize the clock tree for low power consumption, use the MK2069-01GILF's built-in clock gating feature, which allows you to selectively disable clock signals to unused modules. Additionally, consider using a clock frequency scaling technique to reduce power consumption during periods of low system activity.
The recommended settings for the IVR depend on the specific application requirements. However, as a general guideline, set the IVR to provide a stable output voltage of 1.2V to 1.35V, with a typical output current of 100mA to 200mA, depending on the system's power requirements.
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MK2069-01GILF Overview
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