Realtek Launches Worldwide First 4K UHD Set-top Box SoC (RTD1311), Integrating AV1 Video Decoder and Multiple CAS Functions


HSINCHU, Taiwan – June 17, 2019 – Realtek Semiconductor Corp. (Taiwan Stock Exchange: 2379.TW), one of the world’s leading network and multimedia IC providers, launched the worldwide first 4K UHD set-top box SoC (RTD1311) that integrates AV1 video decoding and multiple Conditional Access System (CAS) functions.

Realtek’s RTD1311, incorporating a powerful ARM CPU, is the first to integrate the new AV1 decoder video technology. The chip also supports HEVC 1080P encoder, all HDR standards, diverse output interfaces such as HDMI 2.1, USB3.0, and PCI-e, along with built-in far-field voice recognition. The RTD1311 integrates various Middleware and CAS functions to offer the best solution platform for set-top boxes. In addition, the RTD1311 has a built-in DVB-C demodulator and multiple TS interfaces to respond to different signals of Cable and Satellite simultaneously. Realtek is one of the few silicon vendors to possess a complete portfolio encompassing Bluetooth remote control unit and Wi-Fi chip solutions, which ultimately simplifies the system integration process for ODMs. 

The RTD1311 is a dedicated set-top box SoC that meets far-field voice, secure encryption, and Wi-Fi network requirements. It not only improves the user experience, but also enables the set-top box to play a key and creative role in the home media center.

“In recent years, with the popularity of large-size ultra-high-definition TVs and user demand for video with high picture quality, the penetration rate of 4K set-top boxes has grown tremendously”, said Realtek’s Vice President and Spokesman, Yee-Wei Huang. “The RTD1311 set-top box solution is a highly integrated high-performance platform that reduces the system development cycle to meet the increasing demands of the rapidly growing 4K set-top box market”.

Realtek’s representatives will attend BroadcastAsia 2019  (18 June~20 June, at Suntec Singapore Convention & Exhibition Centre), and will be available to meet with end customers at the venue to answer customer questions. Please contact This email address is being protected from spambots. You need JavaScript enabled to view it. if you would like to discuss any aspect of RTD1311implementation with our representatives during BroadcastAsia 2019.

About Realtek

Realtek Semiconductor Corporation is a world-leading IC provider that designs and develops a wide range of IC products for communications network, computer peripheral, and multimedia applications. Products include 10/100/1000/2500M Ethernet Controllers/PHYs, 10/100/1000M Ethernet Switch Controllers/Media Converter Controllers/Gateway Controllers, Wireless LAN Controllers & AP/Router SoCs, xDSL, VoIP Solutions, Bluetooth, xPON, IoT Solutions, Automotive Ethernet Solutions, High Fidelity Audio Solutions for Consumer and PC Applications, Card Reader Controllers, Web/IP Camera Controllers, LCD Monitor/ATV/DTV Controllers, and Digital Home Center Controllers. With advanced design expertise in RF, analog, and mixed signal circuits, and with strong manufacturing and system knowledge, Realtek offers full-featured, high-performance, and competitive total solutions. More information on Realtek can be found on the website at

Editorial Contact:
Tracy Ho
Realtek Semiconductor Corp.
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