Overview
Description
The HXC42400 is a uni-directional Quad Channel CDR / Retimer for retiming data rates from 25Gbps to 28.05Gbps. It is optimized for 100Gbps Ethernet, OIF CEI-28G-VSR and OTU-4 Optical Transport applications. The HXC42400 can be used in either direction of a transceiver module and can be adopted into QSFP28+, or CFP2/CFP4 modules because of its low 100mW per channel power dissipation. In Bypass operation, the HXC42400 supports legacy data rates up to 16Gbps.
Designed for direct DC-coupled anode drive of the DFB laser diode for cost-effective and compact assemblies. Available in FCBGA 5x5mm form.
Features
- Quad 25 – 28Gbps CDR / Retimer
- Bypass-mode to support legacy data rate up to 16Gbps
- Programmable 3-tap output de-emphasis for transmit
- Adaptive linear equalizer and decision-feedback equalizer (DFE) to cover up to 16dB lossy channel in receiver
- Low sensitivity of 20mVPPD and adjustable threshold level of data sampler
- Reference-less and Master channel-less operation
- Independent, adaptive bandwidth control in RX CDR for optimum jitter tolerance
- Programmable output swing up to 1200mVpp
- Internal and automatic DC and phase offset calibrations
- On-chip testability; EOM, JTOL, PRBS generator/checker, local/remote loopback,
- Polarity (P/N) inversion
- I2C control interface
Comparison
Applications
Documentation
Featured Documentation
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| Product Brief | PDF 183 KB | |
| End Of Life Notice | PDF 160 KB | |
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Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| VFQFPN | C | Tube | ||
| BOARD | C | Box |
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Videos & Training
HXT14450 / HXR14450 Integrated 56 Gb/s Optical CDR / Retimers
Watch an overview of the industry’s first CMOS-based PAM4 CDR solutions, HXT14450 50G/lane PAM4 integrated CDR with VCSEL driver and HXR14450 TIA designed for 200 Gb/s and 400 Gb/s transceivers and AOCs (active optical cables) in datacenters. The series features significantly lower power and smaller size compared with traditional DSP solutions, as well as higher integration – including an integrated MCU – to further simplify system design.
Video List
