BBT3821-JH

Overview

The BBT3821-JH is an octal retimer integrated circuit manufactured by Renesas Electronics Corporation, designed for high-speed signal integrity restoration. It supports data rates ranging from 2.488 Gbps to 3.1875 Gbps per lane. The device features eight independent channels with CML differential inputs and outputs that support both CML and CMOS logic levels. Powered by a supply voltage between 1.425V and 2.5V, it operates within a commercial temperature range of 0°C to 70°C. The component is housed in a 192-EBGA-B package measuring 17x17 mm, suitable for surface mount applications.

Feature Summary

• Octal architecture providing eight independent retiming lanes
• Supports data rates from 2.488 Gbps up to 3.1875 Gbps
• CML differential input/output interface with CMOS output compatibility
• Single power supply operation between 1.425V and 2.5V

Applications

• High-speed serial communication links requiring signal regeneration
• Backplane interconnect systems
• Storage area network (SAN) infrastructure
• Telecommunications equipment

Procurement Notes

Verify the specific suffix -JH against official Renesas documentation to confirm exact pinout, lead finish, and environmental compliance status. Ensure the 192-EBGA-B package dimensions align with PCB footprint requirements before procurement.

Selection Notes

Select this component when eight lanes of retiming are required at speeds up to 3.1875 Gbps. Confirm that the system environment remains within the 0°C to 70°C operating range. Verify that the available power supply rails can provide stable voltage between 1.425V and 2.5V.

Part Context

This part belongs to the Retimer category under Application Specific Clock/Timing components. It serves as a signal conditioning device to extend transmission distances and improve eye diagrams in high-speed digital interfaces.

Replacement Considerations

Cross-reference with other octal retimers such as the ISL35822 or DS160PT801 if alternative sourcing is needed. Verify electrical compatibility and pin-to-pin correspondence before substitution.