DOCSIS 3.0 cable modem SoC

STiD128 is STMicroelectronics’ next generation front-end device for interactive cable gateway and set-top box applications. STiD128 can also be used standalone for cable modem application.

STiD128 provides a solution for operators to specify a range of very high-performance DOCSIS 3.0 STB, multimedia gateway or cable modem platforms.

A total of 16 demodulation channels can be used for DOCSIS out of which 8 channels can be used as video channels. Allocation of the channels is flexible.

A powerful dual core CPU allows telephony and data distribution including routing/switching and firewalling.

Key Features

  • Dual CPU architecture - one for DOCSIS® and one for host including eRouting and VoIP management
  • ARM Cortex-A9 770 MHz, dual-core CPU with NEON™ SIMD co-processor
  • DOCSIS 3.0 data cable modem:
    • Up to 16 downstream channels (up to 800 Mbit/s)
    • Up to 4 upstream channels
  • Up to 8 video QAM demodulation channels
  • Video QAM operations independent from DOCSIS
  • Digital direct interface to full band tuners
  • VoIP through ARM Cortex-A9 CPU:
    • Up to 2 lines VoIP with PacketCable™ 1.5 or 2.0 reference software
  • USB 2.0 host interface
  • 2 x PCIe interfaces for WiFi connectivity
  • DDR2/3, 8/16-bit LMI interface
  • Serial NOR, SPI interface
  • 3 x Gbit Ethernet ports
  • Flexible channel allocation for active standby power consumption reduction



Description Version Size
DB1736 DB1736: DOCSIS 3.0 and video front-end for gateway set-top box and cable modem 3.0 158 KB