BCM3510 PRODUCT Brief ® BCM3510 B C M 3 5 1 0 H D T V / C AT V O F B E N E F I T S • Full equalizer architecture spans -6 to +40 msec delays. • Automatic NTSC co-channel rejection filter provides performance superior to traditional designs. • Full 496-tap equalizer implementation eliminates multipath effects over a wide dynamic range. • Direct IF sampling architecture reduces system cost. • Digital adjacent channel filters provide additional rejection for challenging environmental conditions. • On-chip digital PLL simplifies circuit design. • Integrated microcontroller with on-chip ROM for 1–51 Mbps variable rate QAM/VSB receiver Direct 36/44 MHz IF sampled architecture 10-Bit A/D converter with integral AGC amplifier Digital demodulator and matched filters Adjacent channel filters NTSC co-channel rejection filter 496-tap adaptive decision-feedback equalizer All-digital clock and carrier recovery Integrated PLLs to minimize external components • • • • • • • • • S U M M A R Y F E AT U R E S • Integrated 64/256-QAM and 8-VSB receiver RECEIVER • CATV/HDTV standards-compliant FEC decoder • ITU-T J.83 annex A/B/C CATV modes • ATSC A/53 HDTV mode • Integrated deinterleaver RAM for all modes simplified software development, intelligent monitoring and fast-channel acquisition. • Intelligent embedded microcontroller • MPEG-2 transport output • PCMCIA and Smart Card Format—EIA 679 A,B • PLL Generated Output Clock • Glueless interface to BCM7020 video and graphics subsystem • Low-power standby mode • I C or SPI microcontroller interface • 128-pin PQFP package • 3.3V I/O and analog operation, • Operates at 15 dB SNR threshold of visibility. • Multiple AGC loops handle wide dynamic range input and rapid signal fading. • Integrated AGC and 10-bit A/D converter for direct interface to standard DTV tuners. • MPEG-2 transport interface requires no glue logic to interface to the BCM7020 video and graphics subsystem, smart cards and PCMCIA conditional access devices. 2 • Support for both QAM and VSB for cable TV ready systems at no additional cost. 1.8V digital operation QAM/VSB CATV/HDTV Receiver Memory Conditional Access BCM3510 RF IN ATSC/CATV Tuner VSB/QAM HDTV/CATV Receiver BCM3310 Broadband Communications Processor BCM7020 HDTV MPEG-2 Transport Demux, Audio/ Video Decoder and Display Engine HD Video Audio