RTL2830中文资料DVB-T COFDM Demodulator数据手册Realtek规格书

描述 Description

The RTL2830 is a high-performance DVB-T COFDM demodulator that integrates a COFDM demodulator, FEC decoder, and de-interleavers, and is compatible with NorDig 1.02 and ETS 300 744 (ETSI Specification).  The RTL2830 supports tuners at IF (Intermediate Frequency) (36MHz/44MHz) or low-IF (4.57MHz) input using a 28.8MHz or 25MHz crystal. Embedded with an advanced ADC, the RTL2830 features high stability in portable reception. Via a two-wire interface, the output transport stream supports parallel and serial interfaces, providing great flexibility for implementation with different back-end ICs or USB bridge ICs. The state-of-the-art RTL2830 features Realtek proprietary algorithms (patent-pending), including superior channel estimation, co-channel interface rejection, long echo channel reception, and impulse noise cancellation, and provides an ideal solution for a wide range of applications for PC-TV, portable TV, Set-Top Box, TV tuner module etc.

特性 Features

• COFDM demodulator compatible with NorDig 1.02 and ETSI 300 744
• On-chip FEC decoder and de-interleaver
• Cost-effective direct IF sampling architecture and pure digital solution
• Supports multiple IF frequencies (4.57, 36.167 or 43.75 MHz) and spectrum inversion
• Single low-cost crystal for clock generation (±100 ppm)
• Automatic transmission mode and guard interval detection
• Impulse noise cancellation circuits
• Automatic carrier recovery over a wide range offset
• Superior performance in echo-reduction outside the guard interval
• Embedded Adjacent and Co-channel interference rejection circuits
• Common phase error compensation
• On-chip PLL to minimize jitter noise
• Delayed AGC with programmable take-over point (TOP)
• Supports parallel and serial MPEG transport stream interfaces (two-wire interface)
• 64-pin LQFP ‘Green’ package

应用 Application

• DVB-T Set-Top box
• TV tuner module
• Portable DTV device
• USB dongle solution