U2739M

` Support of mode I, II, III and IV according to ETS 300 401
` Time and frequency synchronization with a widerange parameter set
` Optional implementation of user-defined synchronization strategy by using OAK USE-bootmode
` Flexible software configuration (set 1 (temic kernel), set 2 (user extension) concept)
` Automatic mode detection (AMD)
` Generation of receiver status information
` Generation of tuner control signals
` Generation of pulse width modulated VCXO control signal
` Plastic TQFP100 package or plastic LQFP144 respectively ceramic QFP144 package for software development
` Power supply 3.3 V, master clock 24.576 MHz

Channel Decoder
` Demodulation and decoding of up to 64 UEP/EEP sub-channels
` Support of dynamic multipex reconfiguration (DMR) without mute state
` Digital Null-Symbol detection (FSYNCH generation)
` Channel filtering (48 dB)
` Optional SAW filter equilization
` Digital AFC (frequency tolerance < 0.5 Hz for mode I)
` Digital AGC with a gain control range of 40 dB
` On-chip de-interleaver memory for full 1.8 Mbit/s decoding data rate
` Time and frequency synchronization on DSP OAK core
` FIC interpreter
` Support of AIC decoding (set 2)
` Support of Tll decoding and corresponding RDI insertion (set 2)

Audio Source Decoder
` Audio source decoder ISO MPEG 1, 2 layer II (ISO/IEC 11172/3)
` Half (24 kHz according ISO/IEC 13818-3) and full (48 kHz) sampling rate
` I2S and SPDIF output interfaces
` Programmable fader
` Programmable DRC

Data Decoder
` Support 2 packet mode decoder on OAK DSP core
` FIC on-chip memory, acces via MC interface
` V24/RS232 output

The U2739M is an integrated circuit in advanced CMOS technology for demodulation and decoding of a DAB signal according to ETS 300 401. The channel decoder part includes the main features OFDM demodulation and time and frequency synchronization synchronizationalgorithms on OAK DSP core platform. The audio source decoder supports ISO MPEG 1, 2 layer II half and full sampling rate. The data decoder part of U2739M is realized on the integrated OAK DSP core and includes 2 packet mode decoders. Several standard interfaces, like I2C/L3, I2S or RDI are implemented to offer a flexible utilization. The U2739M offers a user-defined implementation of the time and frequency synchronization by down-loading the corresponding software algorithms to the OAK DSP core.