芯片型号：SPDC230

•凌阳机上盒芯片解决方案，高度整合MPEG-1/-2/-4/DivX/H.264/VC-1/RMVB视频格式解碼、MP3/AAC/PCM/DTS音频格式译码，USB接口与SD/MMC/MS/MSP读卡等多媒体功能，并提供低功耗及频道搜寻快速、稳定的固定与移动解调芯片。具备高整合度与易采用设计特性的凌阳机上盒芯片解决方案，让消费者可移动享受精彩的数字电视节目，室内室外，随兴无框。

•SPDC230A is a state-of-the-art DVB-T Terrestrial COFDM (Coded Orthogonal Frequency Division Multiplex) Demodulator chip. SPDC230A Demodulator matches to Sunplus backend MPEG decoder SPHE1002A to offer a mobile DVB-T turnkey solution. The turnkey solution delivers the advanced features and outstanding performance index. It is in mass production now.

•SPDC230A builds on either 2K or 8K modes with 6, 7 or 8 MHz channels and supports QPSK/16QAM/64QAM reception. SPDC230A integrates a high performance 10-bit ADC converter. The sampling rates can be generated from different clock source, which may come from crystal, or external clocks. Another 8-bit ADC is included for RF signal strength indicator. Smart FFT design highly reduces power consumption, which can be less than half of traditional FFT, and still has good signal handling performance. SPDC230A power dissipation is low to around 230mW, which can be an industry benchmark.

•FEC implementation associated with BER, can indicate capture range for BER calculation. Serial or Parallel MPEG transport stream output can be connected to all commercial MPEG-2 processor chips. Dual AGC can be used for RF and IF AGC control. I2C-like is used for programming command interface.

SPDC232A implements diversity reception to take care of multiple path reflection for car application in the urban area.

•A 10-bit ADC converter as well as a 8-bit ADC for RSSI)

•OFDM Demodulator compliant with ESTI EN 300 744

•Channel Decoder compliant with ESTI EN 300 744

•Dual AGC interface

•Support Mobility Reception (SPDC230A) and Diversity Reception (SPDC232A)

•Parallel or serial transport stream interface

•Impulsive interference suppressor

•Robust tracking algorithm

•Automatic acquisition mechanism

DVB-T STB、DVB-T DTV、Portable DVB-T DTV、Mobile DVB-T DTV