DESCRIPTION

The VP2614 Video De-Multiplexer forms part of the Mitel Semiconductor chip set for video conferencing, video telephony, and multimedia applications. It extracts video parameters and run length coded DCT coefficients from an H.261 bitstream. Elements of the data which have been variable length coded according to the specification are decoded within the device. It produces tagged data, aligned to a macroblock timing structure, in the format needed by the VP2615 Decoder. Side information and status bits are separately made available for the system controller.

FEATURES

■ Fully integrated H.261 video de-multiplexer

■ Inputs an H.261 bitstream. Outputs error corrected run length coded coefficients.

■ Interfaces directly to the VP2615 H.261 decoder

■ Extracts side information and status for transfer to a System Controller

■ User definable system level options for proprietary applications

■ Average input rates between 40 Kbit /sec and 2Mbit / sec. Maximum peak input rates of 4 Mbit / sec.

■ 100 pin quad flatpack

ASSOCIATED PRODUCTS

■ VP2611 H.261 Encoder

■ VP2612 H.261 Video Multiplexer

■ VP2615 H.261 Decoder

■ VP520S CIF / QCIF Converter

■ VP510 Colour Space Converter