32 Channel Cable Gateway Front-End SoC with Full-Spectrum Capture™ and High-Speed Serial Data Output
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Min Temp (°C) 0
Max Temp (°C) 70
Package QFN48 7x7
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The MxL268 is a cable gateway front-end SoC that supports 32 downstream channels and 8 upstream channels (32 x 8). The MxL268 targets DOCSIS and Euro-DOCSIS cable gateway designs.

The MxL268 IC captures the full, 1GHz cable bandwidth, and is capable of providing 24 channels of digitized I/Q data and 8 channels of demodulated data over SerDes. The MxL268 IC also receives digitized upstream signals from a DOCSIS back-end IC using the SerDes interface, and outputs upstream analog signals in the 5MHz to 85MHz range to an external PGA.

With its high integration and low-power consumption, the MxL268 enables high-speed broadband data solutions with a compact board design and low BOM cost. The MxL268 IC is controlled through an I2C interface and operates using 3.3V, 1.8V, and 1.1V supplies. The MxL268 is available in a small 7mm x 7mm footprint 48-pin QFN package.

  • Full-Spectrum Capture™ (FSC™) cable tuner capable of receiving QAM channels from 44MHz to 1006MHz without external SAW filters
  • Remote network monitoring, including spectrum reporting
  • Two SATA 3.0-based SerDes interfaces
  • Eight QAM demodulators
  • Supports up to 32 downstream channels and 8 upstream channels
  • Outputs a DOCSIS upstream signal from 5MHz to 85MHz
  • 1.98W power consumption in a 32-channel receiver application
  • 686mW in Low-Power Mode (LPM)
  • Downstream channel bandwidth that is configurable to 6MHz or 8MHz
  • Reference clock output is provided to the DOCSIS back-end IC for SerDes communication
  • I2C-compatible digital control interface

  • EMTAs
  • Cable modems
  • Cable gateways

Documentation & Design Tools

Type Title Version Date File Size
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Parts & Purchasing

Part Number Min Temp Max Temp Status
MXL268-AF-R 0 70 Active
MXL268-AF-T 0 70 Active

Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.