Description:The 8T39S08A is a high-performance clock fanout buffer. The input clock can be selected from two differential inputs or one crystal input. The internal oscillator circuit is automatically disabled if the crystal input is not selected. The crystal pin can be driven by a single-ended clock. The selected signal is distributed to eight differential outputswhich can be configured as LVPECL, LVDS and HCSL outputs. In addition, an LVCMOS output is provided. All outputs can be disabled into a high-impedance state.
Renesas provides a recommended PCB layout guide in their application note (AP6111) which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize noise.
The 8T39S08ANLGI has a low-power mode that can be enabled by setting the appropriate registers. Refer to the datasheet section 10.3.2 for details on how to configure the device for low-power mode, including setting the clock frequency, disabling unnecessary peripherals, and using the power-down mode.
The 8T39S08ANLGI has an operating temperature range of -40°C to +125°C, as specified in the datasheet. However, it's essential to note that the device's performance and reliability may degrade at extreme temperatures, and proper thermal management is crucial to ensure reliable operation.
The 8T39S08ANLGI is not specifically designed or qualified for radiation-hardened applications. If you need a radiation-hardened device, you should consider Renesas' radiation-hardened products or consult with their sales team for guidance on suitable alternatives.
Renesas provides a clock configuration guide in their application note (AP6112) that includes troubleshooting tips and guidelines for configuring the clock tree, including setting the clock frequency, enabling/disabling clock sources, and debugging clock-related issues.
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