Description:The 552A-01 produces 8 low-skew copies of the multiple input clock or fundamental, parallel-mode crystal. Unlike other clock drivers, these parts do not require a separate oscillator for the input. Using IDT's patented Phase-Locked Loop (PLL) to multiply the input frequency, it is ideal for generating and distributing multiple high-frequency clocks. This is a single chip used for 3 different applications: 1) 552A-01 (A mode) — an Oscillator mutiplier 2) 552A-01 (B mode) — a Dual 1:4 buffer 3) 552A-01 (C mod
Renesas provides a recommended PCB layout guide in their application note (APL-AN-1201) for the 552ARI-01LF, which includes thermal vias, thermal pads, and heat sink recommendations to ensure optimal thermal performance.
Renesas recommends following the guidelines outlined in their EMC application note (APL-AN-1202) for the 552ARI-01LF, which includes PCB layout considerations, component selection, and shielding recommendations to ensure EMC compliance.
The recommended power-up sequence for the 552ARI-01LF is to apply VCC first, followed by VDD, and then the input signals. This sequence helps prevent latch-up and ensures proper device operation.
To enter power-down mode, set the PD pin low. During power-down, the device's internal clock is stopped, and the output drivers are tristated. Ensure that all input signals are stable before entering power-down mode to prevent unwanted device behavior.
The maximum allowed overshoot voltage on the input pins of the 552ARI-01LF is 4.6V, which is specified in the datasheet. Exceeding this voltage may cause device damage or malfunction.
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552ARI-01LF Overview
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