Quad XLB Input Digital Satellite Channel Stacking Switch
Product Brief


The EN5520 is part of Maxlinear’s second generation low power CMOS digital Channel Stacking Switch (dCSS) product family for MDU switch applications. The EN5520 regulation enables aggregating up to 8.4 GHz of satellite content from four wideband RF inputs to single or dual Lband IF outputs.
The device integrates a 32-channel stacking engine that is controlled by an embedded microcontroller. The 32 configurable Channel Select Filters (CSFs) can be allocated to any of the two IF outputs to offer complete flexibility to the operators for distributing multi-channel content over coaxial cable to a single family home or to two Multiple Dwelling Units (MDUs) at the lowest system cost.
Each IF output is configurable in channel stacking mode or in legacy L-band bypass mode, and features a dedicated DiSEqC2.x compatible modem for remote control by the subscriber STBs.


  • Four wideband RF inputs with bandwidth from 250 MHz to 2350 MHz
  • Two L-band IF outputs with bandwidth from 950 MHz to 2150 MHz
    • CSS or legacy L-band bypass modes
    • Positive/negative IF tilt correction
  • Configurable 32-channel stacking engine
    • Programmable channel select filters
    • Fully flexible user bands allocation
    • Spectral inversion
  • Integrated microcontroller and control APIs for customer application software
    • DiSEqC 2.x compatible modems with support for EN50494 and EN50607 regulations
    • I2C interface
    • Multiple GPIO pins
    • SPI flash interface
  • UART debug port
  • Single external 25 MHz reference crystal
  • Low power consumption
  • Small 9 x 9 mm2 QFN, 76-pin package


Contact Sales to request additional information.


  • Digital channel stacking multi-switches

Design Tools


Parts & Purchasing

Part Number Pkg Code Min Temp Max Temp Status Buy Now Order Samples
EN5520-01-1 -40 65 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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