VP305 Datasheet, PDF (1/85 Pages) Mitel Networks Corporation – Satellite Channel Decoder

VP305/6
Satellite Channel Decoder
Preliminary Information
DM5009-1.0 09/07/98
TECHNICAL MANUAL
This is an unpublished work the copyright in which vests in Mitel. All rights reserved.
The information contained herein is the property of Mitel and is supplied without liability for
errors or omissions. No part may be reproduced or used except as authorised by contract
or other written permission. The copyright and the foregoing restriction on reproduction
and use extend to all media in which the media may be embodied.
The VP305/6 is a decoder for digital satellite television transmissions to the European Broadcast
Union ETS 300 421 specification (ref. 1). They receive digitised I and Q signals from the tuner,
demodulate the QPSK data and provide a complete Forward Error Correction, (FEC) and de-
scrambling function. The output is in the form of packetised MPEG2 transport stream data. The
VP305/6 also provides automatic gain control and synchronising signals to the RF front end
devices.
The VP305 has only a parallel interface port to the control microprocessor.
The VP306 has both a serial I²C port and a parallel interface port to the control microprocessor.
MITEL CONFIDENTIAL INFORMATION