MANHASSET, N.Y. Sarnoff Corp. has introduced silicon intellectual property (IP) that demodulates digital/HDTV signals from both 8-VSB (broadcast) and 64/256QAM (cable) sources, helping TV makers meet FCC mandates for implementing digital TV reception.
Designated the VSB/QAM Demodulator Core, the IP is fully compatible with ATSC and OpenCable standards and is available for license now.
Earlier this month, Sarnoff, Princeton, N.J., introduced silicon IP to decode and display ATSC digital TV signals at any resolution including HDTV. The new demodulating IP complements the decoding IP, enabling TV makers to create a single-chip DTV reception system, according to the company.
"This IP lets TV manufacturers quickly and cost-effectively meet FCC mandates that require digital TV capabilities in new sets," said Bill Mayweather, Sarnoff 's Silicon Strategies Business Director. "It's an integrated solution for cable and terrestrial broadcasts that works reliably even with inexpensive tuners."
The demodulator IP's all-digital design eliminates the need for costly add-on circuitry, which the company said would become important as smaller, less expensive TV sets add DTV capabilities and manufacturers begin making converters for older analog sets.
The IP includes forward error correction blocks for each standard. The output can be directly connected to an HDTV audio/video decoder via the parallel or serial interface. An optional 10-bit A/D converter is available to create a complete standalone system.
In addition, the demodulator is compatible with the Advanced Television Systems Committee's recently approved design guidelines titled "The Receiver Performance Guideline Recommended Practice".
Sarnoff's digital TV IP is available for immediate delivery. Deliverables include Verilog source code and test benches, firmware, extensive documentation, and engineering support. The IP can be customized to provide additional features for specific applications.