General 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. Features COFDM demodulator compatible with NorDig 1.02 and ETSI 300 744 On-chip FEC decoder and de-inter leaver 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 Applications DVB-T Set-Top box TV tuner module Portable DTV device USB dongle solution

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