16 Channel Cable Gateway Front-End SoC with Full-Spectrum Capture™ and High-Speed Serial Data Output


The MxL265D is a cable gateway front-end SoC that supports 16 downstream channels and 8 upstream channels (16 x 8). The MxL265D targets DOCSIS and Euro-DOCSIS cable gateway designs.

The MxL265D IC captures the full, 1GHz cable bandwidth, and is capable of providing up to 16 channels of digitized I/Q data through a SerDes interface, and has a maximum serial baud rate of 5.4Gbps. The MxL265D 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 MxL265D enables high-speed broadband data solutions with a compact board design and low BOM cost. The MxL265D IC is controlled through an I2C interface and operates using 3.3V, 1.8V, and 1.1V supplies. The MxL265D 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
  • SATA-based SerDes interface
  • Supports up to 16 downstream channels and 8 upstream channels
  • Outputs a DOCSIS upstream signal from 5MHz to 85MHz
  • 1.6W power consumption in a 16-channel receiver application
  • 400mW power consumption in a single-channel, LPM with an IF output center frequency that is available from 5MHz to 40MHz
  • 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
Supported Standards
  • DOCSIS 3.0 and 2.0
  • EuroDOCSIS 3.0 and 2.0 


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  • EMTAs
  • Cable modems
  • Cable gateways

Design Tools


Parts & Purchasing

Part Number Pkg Code Min Temp Max Temp Status Buy Now Order Samples
MxL265D-AF-R 0 70 Active
MxL265D-AF-T 0 70 Active
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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.

Quality & Environmental Data

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