Description:The 841S102I is a PLL-based clock synthesizer specifically designed for PCI_Express™ Clock applications. This device generates a 100MHz differential HCSL clock from an input reference of 25MHz. The input reference may be derived from an external source or by the addition of a 25MHz crystal to the on-chip crystal oscillator. An external reference is applied to the XTAL_IN pin with the XTAL_OUT pin left floating.The device offers spread spectrum clock output for reduced EMI applications. An I2C bus interface
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, heat sink recommendations, and PCB layer stack-up suggestions to ensure optimal thermal performance.
Renesas recommends a specific power sequencing scheme to ensure proper device operation. This information can be found in the device's user manual or application notes. Typically, the sequence involves powering up the VCCIO and VCC cores in a specific order, followed by the AVCC and DVCC supplies.
Renesas recommends using high-quality, low-ESR decoupling capacitors with a value of 0.1 μF to 1 μF, placed as close as possible to the device's power pins. The exact capacitor values and placement can be found in the device's datasheet or application notes.
Renesas provides guidelines for JTAG interface handling during production testing in their device-specific documentation. This includes information on JTAG pin connections, signal levels, and testing procedures to ensure reliable device programming and testing.
Renesas provides thermal design guidelines and thermal models for the 841S102EGILF in their documentation. Engineers should consider factors such as junction temperature, thermal resistance, and heat sink design to ensure reliable device operation in high-temperature environments.
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841S102EGILF Overview
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