San Jose, Calif. Techwell, Inc. unveiled two, four-channel NTSC/PAL video decoders with integrated audio analog-to-digital (A/D) converters, and a Motion Joint Photographic Experts Group (MJPEG) compression controller for multichannel digital video recorders (DVRs) for security surveillance applications.
Extending Techwell's TW2800 family of security ICs, the pin-to-pin compatible TW2815 and TW2816 four-channel video decoders convert analog composite video signals to digital component YCbCR data for standalone and PC-based DVR security applications.
The TW2815 also includes audio codecs and combined with the new TW2700 four-channel compression controller provide a scalable, end-to-end MJPEG DVR solution, said David Nam, Techwell's vice president of sales and marketing.
The TW2815 and TW2816 include four integrated analog anti-aliasing filters, 10-bit, CMOS-based A/D converters, and high-performance adaptive 4H comb filters for all NTSC/PAL standards.
Both ICs provide simultaneous four channel Full D1 and CIF time-multiplexed outputs with 54 MHz, and both operate at an ultra low level of power (typically 480 milliwatts to 500 mW). In addition, the TW2815 offers four integrated audio A/D converters, an audio digital-to-analog (D/A) converter, multichannel audio mixed analog output, and support for a standard I2S interface for record output and playback input.
The TW2700 is a real-time four-channel video compression controller for security applications that can compress and decompress four full-size video data streams simultaneously, Nam said.
Features include four ITU-R BT.656 compatible video input ports; an independent compression engine for each channel with a proprietary algorithm; support for triplex operations, simultaneous recording, playback and network connection; and support for up to sixteen channels through cascade mode.
The pin-to-pin compatible TW2815 and TW2816 are priced at $12.00 and $10.00, respectively, in 10,000-piece quantities, and come in a 100-pin, TQFP package. The devices are currently sampling with production slated for Q2.Click here for the TW2815 data sheet. Click here for the TW2816 data sheet.
The TW2700, priced at $25.00 in same quantities, uses a 256-pin, PQFP package. The device will begin sampling in Q2, and will go into full production in Q3. Click here for the TW2700 data sheet.
Techwell Inc., 1-408-435-3888, www.Techwellinc.com.