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VP310CGGQ1R

更新时间： 2024-09-27 22:15:35

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VP310CGGQ1R 数据手册

VP310

Satellite Channel Decoder

Preliminary Information

SHORTFORM TECHNICAL MANUAL

DS5155 -1.00 21/04/99

Ordering Information

VP310 CG GQ1R

VP310 - Key Features

• Conforms to EBU specification for DVB-S and DirecTV specification for DSS.

• On-chip digital filtering supports 1 to 45MBaud Symbol rates.

• On-chip 6-bit 60 or 90MHz dual-ADC.

• High speed scanning mode for blind symbol rate and code rate acquisition.

• Up to ± 15MHz LNB frequency tracking.

• Fully digital timing and phase recovery loops.

• High level software interface for minimum development time.

• DiSEqC™ v1.1: control outputs for full control of LNB and dish.

Applications

• DVB 1 to 45MBaud compliant satellite receivers.

• DSS 20MBaud compliant satellite receivers.

• SCPC receivers. (Single Channel Per Carrier)

• SMATV trans-modulators. (Single Master Antenna TV)

• LMDS. (Local Multipoint Distribution Service)

• Satellite PC applications.

The VP310 is a QPSK/BPSK 1 to 45MBaud demodulator and channel decoder for

digital satellite television transmissions to the European Broadcast Union ETS 300 421

specification. It receives analog I and Q signals from the tuner, digitises and digitally

demodulates this signal, and implements the complete DVB/DSS FEC (Forward Error

Correction), and de-scrambling function. The output is in the form of MPEG2 or DSS

transport stream data packets. The VP310 also provides automatic gain control to the

RF front-end devices.

The VP310 has a serial I²C port interface to the control microprocessor. Minimal

software is required to control the VP310 because of the built in automatic search and

decode control functions.

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