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T2M › Broadcast/Codec › ISDB-T Demodulator & Decoder IP

ISDB-T Demodulator & Decoder IP

概述和功能介绍

This demodulator supports ISDB-T (Terrestrial Digital broadcast standard), DVB-T(ETSI EN 300 744 standard) and DVB-T2 in a single SoC Chip, and high performance 10-bits ADC is integrated for DVB-T, ISDB-T and DVB-T2 demodulation, and a shared AGC, which support both single-loop and dual loop, can be flexible with a variety of RF tuners. ISDB-T demodulation fully compliant ARIB STD-B31(ISDB-T), and low power consumption receiver for receiving digital terrestrial broadcasting based on the Integrated Services Digital Broadcasting Terrestrial Television System(ISDB-T). Through the Serial or Parallel TS Interface, output the MPEG-2 / H.264 Transport Signal. ISDB-T demodulation integrate, and flexible down converter function, so, support zero- IF(Direct Conversion) signal , low-IF(about 5MHz). ISDBT demodulator has fully high performance digital signal processing algorithm for all kind of transmission mode and parameters ISDB-T signals, also can demodulate the digital terrestrial sound broadcast. And support fixed and portable reception.

   isdb-t-demodulator

 

功能描述
  • Fully compliant with ARIB STD-B31(ISDB-T)
  • Support 1-3 layers transmission and support partial reception(one-segment reception)
  • Automatic detect and receive all combinations of transmission mode, modulation, GI, and code rate Mode: Mode 1, Mode 2, Mode 3Modulation: DQPSK, QPSK, 16-QAM, 64- QAMGuard Internal: 1/32, 1/16, 1/8, 1/4Code Rate: 1/2, 2/3, 3/4, 5/6, 7/8Time De-Interleave I=0, 1, 2, 4, 8 (Mode3)
  • Support 6/7/8MHz channel bandwidth and low- IF(about5MHz)and zero-IF(Direct Conversion)
  • Integrated high performance dual ADC support single-end and differential input
  • Automatic Spectrum reverse detection and correction in base-band processing
  • Both support single-loop AGC and dual loop AGC (RF/IF) for different RF front-end
  • Full digital IQ imbalance compensation
  • Digital channel filter for adjacent channel interference rejection
  • Novel Fine Timing Synchronization for FFT window position indifferent reception channel
  • Fully digital sampling/clock synchronization for max +/-200ppmoffset recovery
  • Fully digital carrier synchronization for max +/- 500KHz off set recovery
  • High performance Common phase error correction
  • Robust Co-Channel interference detection and suppression
  • High performance Inter symbol interference canceller(ISIC)algorithm for performance enhancement in presence of out of GI interference.
  • Support portable reception with novel Doppler detection and channel estimation algorithm
  • Fast auto channel search with TMCC decoder even in presence of lower CNR
  • Multiple diagnostic: RSSI, BER, PER, C/N, Service quality, constellation, CIR, TMCC change indicator

Applications

  • Set Top Box
  • Hybrid IP TV
  • PVR, USB Dongle
  • Professional equipment
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