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Product Detailed Parameters
- Description：FCCSP 4.80X4.00X1.00 MM, 0.40MM
- Series：-
- PLL：No
- Mfr：Renesas Electronics Corporation
- Main Purpose：Ethernet
- Input：-
- Output：-
- Number of Circuits：4
- Ratio - Input:Output：1:01
- Differential - Input:Output：No/No
- Frequency - Max：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：81-VFBGA, FCCSPBGA
- Supplier Device Package：81-FCCSP (4.8x4)
Download product information
Overview
The HXC44400-BFI is a quad-channel linear PAM4 Direct Modulated Laser (DML) driver designed for long-reach optical applications. It supports signaling rates up to 28 GBaud or 56 Gbps PAM4. The device handles complete digital-to-optical conversion, integrating CML input with equalization, laser driver, drive control, and supervision functions. It operates within a surface-mount FCCSP package measuring 4.80 x 4.00 x 1.00 mm.
Feature Summary
- Quad-channel linear PAM4 DML driver supporting up to 56 Gbps PAM4 signaling
- Integrates CML input equalization, laser driver, and drive control
- Supports Automatic Power Control (APC) and temperature monitoring
- Designed for direct DC-coupled die in TOSA applications
Applications
- Long-reach (LR) optical modules
- Direct coupled Transmitter Optical Sub-Assembly (TOSA)
- High-speed data communication links
Procurement Notes
Verify the specific -BFI suffix against official Renesas documentation to confirm exact binning or revision status. Confirm current production status as high-speed optical drivers may have limited availability or end-of-life notifications. Ensure compatibility with the target laser diode specifications before procurement.
Selection Notes
Select this component for designs requiring integrated PAM4 driving for LR optical applications. Verify that the host interface supports CML inputs with equalization. Ensure the design accommodates the 81-FCCSP package dimensions of 4.8x4.0 mm. Check thermal requirements for direct die coupling in TOSA assemblies.
Part Context
This part belongs to Renesas' portfolio of high-speed optical interconnect solutions. It complements retimers and clock recovery devices by providing the final stage of electrical-to-optical signal conversion. The quad-channel architecture allows for compact multi-lane optical transceiver designs.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult Renesas application notes for potential family replacements or updated series.
