High Performance 4x4 802.11ac Wave 2 5GHz Single Chip Optimized for Dense Environments

The CL2440 is a future-ready, powerful, highly integrated, 4x4 802.11ac wave 2 single chip implementing full 802.11ac Wave 2 functionality including MU-MIMO, 160MHz channel support, beamforming and 4 Spatial Streams. The CL2440 integrates both a CPU and memory to run more of the wireless LAN functions on-chip, delivering a strong host offloading solution with no need for costly external memories. Designed for fit, the CL2440 comes in a compact 88 pin QFN enabling a full 4x4 high performance 802.11ac interface in a standard full-sized min PCIe card with the lowest power consumption.


  • IPTV and Cable Home Gateway Data & Video Distribution
  • Carrier-Grade Unified Home Gateway
  • Carrier-Grade Home Networking
  • Multi-Room DVR
  • Wi-Fi enabled Set-Top Boxes and Hybrid DVB-S/C/T
  • Wireless TV for Over the Top Content
  • Enterprise Access Points


  • Single chip solution with integrated RF, Baseband and MAC
  • Built-in powerful CPU, memories and accelerators for maximum host offloading
  • Novel DSP-based PHY architecture for flexible SDR Wi-Fi
  • IEEE 802.11ac wave 2 4T4R MU-MIMO
  • Best in class form and fit for smaller, cooler and more cost-effective designs
  • IEEE 802.11a/n compliant
  • Explicit and Implicit Beam Forming for increased coverage
  • 20MHz/40MHz/80MHz/160MHz Bandwidth
  • QAM 256 (MCS 8, 9) modulation
  • Real-time Rx and Tx antenna diversity
  • LDPC Tx and Rx on both 802.11ac and 802.11n
  • STBC Tx and Rx
  • Short guard interval (Short GI)
  • Frame Aggregation and block ACK
  • WEP 64/128, WPA, WPA2, TKIP, AES, WAPI
  • IEEE 802.11e, h, i, k, r, v, w, z support
  • Multiple BSSID support
  • PCI Express v2.0 (backwards compatible with v1.1)
  • Enhanced Radar Detection for long and short pulse radar
  • Advanced Spectrum Intelligence
  • Support wake event signaling in Wake-On-WLAN applications