ATBM8831

ATBM8830 / ATBM8831   Low-power and high-performance DTMB full modes demodulator Product Brief Full DTMB demodulation „ 3780 carriers and single carrier „ QPSK/4QAM-NR/16QAM/32QAM/64QAM „ FEC rates of 0.4, 0.6 and 0.8 „ Guard internals of PN420, PN595 and PN945 „ Time de-interleaver depth M=240 and M=720 „ Modulation mode automatic detection Block Diagram and Technology Block Diagram of ATBM8830/8831   General description „ Compliant to GB20600-2006, China Digital Terrestrial Broadcasting Standard „ Supporting demodulation of single-carrier and multi-carrier modes „ Supporting high IF, low IF and I/Q input, compatible with CAN tuners and silicon tuners „ TS output in parallel or serial format „ Pin compatible with other AltoBeam LQFP/BGA demodulator chips Advantages „ High performance in both multi-carrier and single-carrier modes „ Rapid PLL lock and channel changing „ Outstanding multipath and pre-echo performance in SFN environment „ Very low power consumption „ Very simple software driver, easy to integrate Applications „ iDTV, set-top-box, car receiver „ PCTV card and USB TV dongle „ Portable or handled TV receiver „ DTV testing or experiment equipment AGC Tuner ATBM8830/ATBM8831 DTMB Demodulator IF to baseband Timing recovery Frequency recovery SDRAM* FEC decoding Time de-interleaver Channel estimaion ADC PLL Crystal Transport Stream (MPEG2, MPEG4, H.264 or AVS) Descrambler Equalization www.DataSheet.co.kr SDRAM* „ „ „ „ „ „ „ „ 130nm CMOS process On chip ...