Description:The 874003 is a high performance Differential-to-LVDS Jitter Attenuator designed for use in PCI Express® systems. In some PCI Express® systems, such as those found in desktop PCs, the PCI Express® clocks are generated from a low bandwidth, high phase noise PLL frequency synthesizer. In these systems, a jitter attenuator may be required to attenuate high frequency random and deterministic jitter components from the PLL synthesizer and from the system board. The 874003 has 3 PLL bandwidth modes: 200kHz, 400kH
Renesas provides a recommended PCB layout guide in their application note (APN) documents, which can be found on their website. The guide includes thermal vias, copper pours, and other layout considerations to ensure optimal thermal performance.
Renesas recommends following the power sequencing guidelines outlined in the datasheet, which involves powering up the VCC and VCCIO pins in a specific order. Additionally, Renesas provides a power sequencing application note that provides more detailed information and examples.
While the datasheet specifies an operating temperature range of -40°C to 125°C, Renesas recommends derating the device's performance at temperatures above 85°C to ensure reliability and prevent thermal shutdown.
Renesas provides an I2C troubleshooting guide in their application note documents, which covers common issues such as bus contention, clock stretching, and slave address conflicts. Additionally, Renesas recommends using an I2C bus analyzer tool to debug I2C communication issues.
Renesas recommends implementing ESD protection measures such as TVS diodes, ESD protection ICs, or ESD-resistant capacitors to protect the device from electrostatic discharge. The specific protection scheme will depend on the application and environment.
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874003AGLFT Overview
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