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DVB-H is the latest development from the DVB Project targeting handheld, battery powered devices such as mobile telephones, PDAs, etc.. Based on DVB-T's excellent mobile performance, it answers need to ensure reliable, high speed, high data rate reception.
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DTMB Receiver
Features
- Optimized GB20600-2006 compliant single chip demodulator
- Supports both Multi-carrier and Single-carrier modes
- Supports 64QAM, 32QAM, 16QAM, 4QAM and 4QAM-NR modulation for both fixed and mobile applications.
- FEC rates of 0.4, 0.6 and 0.8
- Guard intervals of PN420, PN595 and PN945
- Time de-interleaving: M = 240 or M = 720
- MPEG-2 Transport Stream parallel output
- Automatic parameter discovery and update
- Integrated BER (bit error rate) monitoring
- Average Noise Magnitude monitoring
- Channel Bandwidth: 8 MHz
- Optimized for maximum signal resiliency in all conditions (impulse noise, echoes, fading, etc)
Overview
DMR 8000 is a DTMB Receiver and demodulator, fully compliant with the GB20600-2006 standard.
The receiver is based on a specialized ASIC, a single chip demodulator.
The demodulator supports both Multi-carrier and Single-carrier modes.
Designed for digital terrestrial reception of high definition, standard definition and other multi-media-based services, the demodulator is intended for indoor, outdoor, fixed, portable and automotive applications.
The DTMB Receiver input signal is connected to a UHF tuner, which converts the signal to IF.
The ASIC demodulator chip takes the analog or digital IF signal as input, converts it to baseband and then performs the necessary demodulation and FEC (forward error correction) decoding and provides an MPEG-2 transport stream output in parallel format.
The operation parameters of the DTMB Receiver are monitored and controlled by the embedded system controller.
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