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VP310 Datasheet(PDF) 2 Page - Mitel Networks Corporation |
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VP310 Datasheet(HTML) 2 Page - Mitel Networks Corporation |
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2 / 31 page  VP310 PRELIMINARY DATA 2 Overview The VP310 is a QPSK/BPSK 1 to 45MBaud demodulator and channel decoder for digital satellite television transmissions compliant to both DVB-S and DSS standards and other systems, such as LMDS, that use the same architecture. A Command Driven Control (CDC) system is provided making the VP310 very simple to program. After the tuner has been programmed to the required frequency, to acquire a DVB transmission, the VP310 requires a minimum of five registers to be written, see Figure 15 on page 19. Activity flow diagrams for initialisation and basic channel change are included in section 2. The VP310 provides a monitor of Bit Error Rate after the QPSK module and also after the Viterbi module. For receiver installation, a high speed scan or ‘blind search’ mode is available. This allows all signals from a given satellite to be evaluated for frequency, symbol rate and convolutional coding scheme. Dual ADC Timing recovery Matched filter Phase recovery I²C Interface DVB DSS FEC Analog AGC control Acquisition Control Clock Generation MPEG/ DSS Packets Bus I/O Q I/P I I/P De-rotator Decimation Filteriing Figure 1. VP310 Functional Block Diagram. |
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