Description:The 85408 is a low skew, high performance 1-to-8 Differential-to-LVDS Clock Distribution Chip from IDT. The 85408 CLK, nCLK pair can accept most differential input levels and translates them to 3.3V LVDS output levels. Utilizing Low Voltage Differential Signaling (LVDS), the 85408 provides a low power, low noise, low skew, point-to-point solution for distributing LVDS clock signals. Guaranteed output and part-to-part skew specifications make the 85408 ideal for those applications demanding well defined perf
Renesas provides a recommended PCB layout guide in their application note (R01AN4301EJ0100) which includes thermal design considerations, such as thermal vias, copper pours, and component placement.
Renesas recommends a specific power sequencing scheme in their application note (R01AN4301EJ0100) to ensure proper device operation. The sequence involves powering up the VCC, VCCIO, and VREF pins in a specific order.
The built-in voltage regulator has a limited current capability (typically 100mA) and is intended for powering the internal circuitry. It's not suitable for powering external components or high-current applications.
Renesas provides power-saving modes, such as the 'Low Power Mode' and 'Sleep Mode', which can be enabled through register settings. Additionally, optimizing the clock frequency, disabling unused peripherals, and using dynamic voltage and frequency scaling can help reduce power consumption.
Renesas recommends following the guidelines in their EMC application note (R01AN4302EJ0100) for designing a robust and EMC-compliant system. This includes using proper shielding, filtering, and layout techniques to minimize electromagnetic interference.
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85408BGLFT Overview
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