QAMI5516

www.DataSheet4U.com ® QAMi5516 Single module demodulator and decoder IC for digital video set-top boxes DATA BRIEF Description The QAMi5516 is an integrated demodulator/decoder solution for digital cable receivers for compressed video, sound and data services. A QAM demodulator performs IF to MPEG-2 block processing of QAM carriers. The demodulated stream is then processed by video and audio decoders using standard Omega technology. The QAMi5516 contains all of the most commonly used descramblers, and thus allows a single platform to be developed to cover the entire mainstream set-top box market (USA, Europe, Asia) . Application: Highly cost-effective solution for digital cable set-top boxes Flash SDRAM (optional) SDRAM IR Tx/Rx Tuner IF in SSCn_DIN/DOUT SDA QAMi5516 RGB SSCn_SCLK SCL Serial/parallel TSOUT CVBS/YC TSIN1/2 RS232 VCR March 2004 1/2 QAMi5516 Features ■ Decodes ITU-T J.83-Annexes A/B/C and DVBC bitstreams ■ Integrated high performance ADC ■ Support for 4-, 16-, 32-, 64-, 128-, 256-point constellation variable symbol ■ Rate from 0.87 MBaud to 11.7 MBaud ■ Robust integrated adaptative equalizer ■ I²C serial bus and I²C repeater ■ Lock time <100ms ■ 180 MHz 32-bit ST20 CPU ● ■ Graphics/display www.DataSheet4U.com 5 display planes (background, video, still, OSD and cursor) ● 2, 4 and 8bpp CLUT graphics ● ■ PAL/NTSC/SECAM video encoder RGB, CVBS, Y/C and YUV outputs with 10-bit DACs ● Encoding of CGMS, teletext, WSS, VPS, closed caption ● Macrovisi...