'DVB-S' related articles 1

  1. 2009/05/04 CE6313 - DVB-S Satellite Demodulator
Description
The CE6313 is a QPSK/BPSK 1 - 45 MSps demodulator and channel decoder for digital satellite television transmissions to the European Broadcast Union ETS 300 421 specification. It receives analogue I and Q signals from the tuner, digitises and digitally demodulates this signal, implements the complete DVB/DSS FEC (Forward Error Correction) and descrambling function. The output is in the form of MPEG2 or DSS transport stream data packets. The CE6313 also provides automatic gain control to the RF front-end device.
The CE6313 has a serial 2-wire bus interface to the control microprocessor. Minimal software is required to control the CE6313 because of the built in automatic search and decode control functions.

Features
*Conforms to EBU specification for DVB-S and DirecTV specification for DSS
*On-chip digital filtering supports 1 - 45 MSps symbol rates
*On-chip 60 or 90 MHz dual-ADC
*High speed scanning mode for blind symbol rate/code rate acquisition
*Automatic spectral inversion resolution
*High level software interface for minimum development time
*Up to ±22.5 MHz LNB frequency tracking
*DiSEqC™ v2.2: receive/transmit for full control of LNB, dish and other components
*Compact 64-pin LQFP package (7 x 7 mm)
*A full DVB-S front-end reference design is available, ref. CE9541

Applications
*DVB 1 - 45 MSps compliant satellite receivers
*DSS 20 MSps compliant satellite receivers
*SMATV (Single Master Antenna TV) transmodulators
*Satellite PC applications

DJCE6313, WJCE6313

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