Description:The 8545I is a low skew, high performance 1-to-4 LVCMOS/LVTTL-to-LVDS Clock Fanout Buffer and a member of the family of High Performance Clock Solutions from IDT. Utilizing Low Voltage Differential Signaling (LVDS) the 8545I provides a low power, low noise, solution for distributing clock signals over controlled impedances of 100?. The 8545I accepts a LVCMOS/LVTTL input level and translates it to 3.3V LVDS output levels. Guaranteed output and part-to-part skew characteristics make the 8545I ideal for those
Renesas provides a recommended PCB layout guide in their application note (APL-AN-1201) which includes thermal design considerations, such as thermal vias, copper pours, and component placement.
Renesas recommends a specific power sequencing scheme in their datasheet, which involves powering up the VCC and VDD pins in a specific order. Additionally, they provide a power sequencing diagram in their application note (APL-AN-1202).
Renesas recommends using high-frequency, low-ESR capacitors (e.g., 100nF, 1uF, and 10uF) with a voltage rating of at least 2.5V, placed as close as possible to the VCC and VDD pins.
Renesas provides an I2C troubleshooting guide in their application note (APL-AN-1203), which covers common issues such as bus contention, clock stretching, and slave address conflicts.
The 8545BGILF is rated for operation from -40°C to +125°C, but Renesas recommends derating the device for reliable operation above 85°C.
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8545BGILF Overview
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