Description:The 843071I is a Serial ATA (SATA)/Serial Attached SCSI (SAS) Clock Generator. The 843071I uses an 18pF parallel resonant crystal over the range of 20.833MHz - 28.3MHz. For SATA/SAS applications, a 25MHz crystal is used and either 75MHz or 150MHz may be selected with the FREQ_SEL pin. For 10Gb Fibre Channel applications, a 26.5625MHz crystal is used for 159.375MHz output. The 843071I has excellent <1ps phase jitter performance, over the 12kHz - 20MHz integration range. The 843071I is packaged in a small 8-p
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 core voltage (VCC) before the input/output voltage (VIO).
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 may include using a JTAG adapter, configuring the JTAG pins, and implementing boundary scan testing.
Renesas provides thermal design guidelines and thermal models (e.g., JEDEC JESD51-7) for the 843071AGILF in their documentation. Engineers should consider factors like junction temperature, thermal resistance, and heat sink design to ensure reliable operation in high-temperature environments.
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843071AGILF Overview
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