Texas Instruments recommends a careful PCB layout and routing to minimize jitter and ensure reliable operation. This includes keeping the clock signal traces short and shielded, using a solid ground plane, and avoiding vias and layer changes near the clock signal paths. Additionally, it's recommended to use a low-ESR capacitor for the VCCO pin and to decouple the VCCO pin from the VCC pin.
The CDC2509BPWR can be configured using the SEL0-SEL2 pins to select the desired clock frequency and output format. The device also has a programmable clock divider that can be set using the DIV0-DIV2 pins. Refer to the datasheet for the specific configuration options and settings for your desired clock frequency and output format.
The CDC2509BPWR can support clock frequencies up to 250 MHz. However, the maximum frequency may vary depending on the specific application, PCB layout, and output load. It's recommended to consult the datasheet and perform thorough testing to ensure reliable operation at the desired clock frequency.
The CDC2509BPWR requires a stable power supply and proper decoupling to ensure reliable operation. It's recommended to use a low-dropout regulator (LDO) to power the device and to decouple the VCC pin with a 0.1 μF ceramic capacitor and a 10 μF electrolytic capacitor. Additionally, it's recommended to use a separate power plane for the VCCO pin and to decouple it with a 0.1 μF ceramic capacitor.
The CDC2509BPWR has a maximum operating temperature of 85°C. To ensure reliable operation in high-temperature environments, it's recommended to provide adequate heat sinking, use a thermally conductive PCB material, and ensure good airflow around the device. Additionally, it's recommended to derate the device's power consumption and clock frequency at higher temperatures to prevent overheating.
CDC2509BPWR datasheet
by Texas Instruments
