TC35273 Просмотр технического описания (PDF) - Toshiba

Номер в каталоге

Компоненты Описание

Список матч

TC35273

TOSHIBA MPEG-4 Audiovisual LSI

Toshiba 

1. Functional Specifications

Preliminary

MPEG-4 Audiovisual Codec LSI

TC35273

1.1 MPEG-4 Video Codec

U ISO MPEG-4 International Standard Simple Profile @Level 1 is supported. Encoding and

decoding with QCIF (176 x 144 pixel) at 15 frames per second are executed.

U YCbCr 4:2:2 8bit digital camera input. A CMOS camera or an NTSC decoder is connected.

U Temporal filter and size conversion for pre-filter function.

U YCbCr 4:2:2 8bit digital display output. An NTSC encoder or an LCD controller is connected.

U Size conversion and de-blocking filter for post-filter function.

1.1.1. Speech Codec / Audio Decoder

U AMR Speech Codec at 8kbps with CS-ACELP.*

U ITU-T G.729 speech codec at 8Kbps with CS-ACELP.*

U ITU-T G.723.1 speech codec at 5.3kbp with ACELP, or 6.3kbps with MP-MLQ.*

U Stereo Twin-VQ audio decoder at 96kbps with up to 44.1-kHz sampling frequency.*

U ISO/IEC 13818-7 AAC LC audio decoder at 144kbps with up to 48-kHz sampling frequency.*

U PCM stereo or monoral sound input/output. An external microphone and a speaker are

connected via DAC and ADC, respectively.

1.1.2. Multiplexer/Demultiplexer

U Multiplexing and demultiplexing with ITU-T H.223 and H.223 Annex A,B protocol at 32Kbps

384Kbps.*

U Demultiplexing with ITU-T H.222.0 / ISO/IEC13818-1 at 32Kbps 1024Kbps.*

U Bitstream input/output via a network serial interface.

* In order to run this LSI as an MEPG-4 audiovisual LSI, Specified firmware programs have to be

obtained in advance

TOSHIBA Confidential

3/23

Version 0.90

2000-4-27

Share Link: