Description:The 843003I-01 is a 3 differential output LVPECL Synthesizer designed to generate Ethernet reference clock frequencies and is a member of the family of high performance clock solutions from IDT. Using a 19.53125MHz or 25MHz, 18pF parallel resonant crystal, the following frequencies can be generated based on the settings of 4 frequency select pins (DIV_SEL[A1:A0], DIV_SEL[B1:B0]): 625MHz, 312.5MHz, 156.25MHz, and 125MHz. The 843003I-01 has 2 output banks, Bank A with 1 differential LVPECL output pair and Ban
Renesas provides a recommended PCB layout guide in their application note (R01AN3804EU0100) which includes thermal design considerations, such as thermal vias, copper pours, and component placement, to ensure optimal thermal performance.
Renesas recommends a specific power sequencing scheme in their application note (R01AN3804EU0100) to ensure proper device operation. The recommended sequence is: VCC, VCCIO, and then VREF.
Although the datasheet specifies an operating temperature range of -40°C to 85°C, Renesas recommends derating the device's performance at temperatures above 70°C to ensure reliability and prevent thermal shutdown.
Renesas recommends following their guidelines for vibration testing and design considerations (R01AN3804EU0100) to ensure the device's reliability in high-vibration environments. Additional mechanical support, such as screw-down or adhesive, may be necessary.
Renesas provides a troubleshooting guide in their application note (R01AN3804EU0100) that covers common issues, such as power-on reset, clocking, and signal integrity. Additionally, Renesas offers technical support and FAQs on their website.
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843003AGI-01LF Overview
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