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參數(shù)資料
| 型號(hào)： | MB87L2250 |
| 廠商： | FUJITSU LTD |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | MPEG2 Transport, Video and Audio Decoder with integrated 32-Bit RISC CPU |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP208 |
| 封裝： | PLASTIC, FP-208 |
| 文件頁(yè)數(shù)： | 4/6頁(yè) |
| 文件大?。?/td> | 127K |
| 代理商： | MB87L2250 |
MB87L2250 - MPEG2 Decoder
Product Profile
October 1998
Edition 1.1
4
Fujitsu Mikroelektronik GmbH Proprietary Information
Confidential
2.4.
BUFFER MANAGEMENT
Individual buffer allocation for each stream
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Video Buffer / Audio Buffer / Teletext Buffer / 29 Section Data Buffer
Section buffer types
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circular buffer
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buffer size individually programmable for each stream between 256 byte and 32 Kbytes
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each buffer with write and stop pointers for buffer management
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stop pointer software controlled
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IRQ generation and stream disable in case of buffer overflow (programmable)
2.5.
Video Decoder
Decoding of MPEG-2 Video ML@MP ISO/IEC 13818-2, MP@LL, SP@ML
Error concealment using syntax checker and concealment vectors
MPEG-1 Bit stream inside ISO-11172-2 decoded DVB compliant
Supports 3:2 pull down
2.5 Frame architecture
2.6.
Video Output
Supports different Video-DAC’s (CCIR/ITU 601, CCIR/ITU 656)
8 bit Y, Cr, Cb
4:2:0 or 4:2:2 output format
Vertical filtering
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4:2:0 -> 4:2:2 conversion (chrominance up sampling),
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letterbox for 4:3 monitors
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SIF-upsampling (chrominance and luminance up sampling)
Horizontal filtering with 8 tap poly phase filter
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pan/scan
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DVB full screen up sampling
digital insertion for Teletext into the VBI
picture down scaling (75% picture size)
2.7.
OSD
no limitation of the number of OSD-regions (depends only on the available memory)
individual mode and colour palette for each defined OSD region
load of colour map for each region programmable
4 bits mix weight
256 colours (8 Bit), 64 colours (6 Bit), 16 colours (4 Bit), 4 colours (2 Bit) mode supported
full resolution or SIF format
in one region transparent, mixed and OSD-only possible
memory save mode to increase OSD memory
independent or same bit map for even / odd-field.
2.8.
Audio Decoder
ISO/IEC 11172-3 (MPEG 1 Audio)
ISO/IEC 13818-3 (MPEG 2 Audio in two channel mode)
Layer I & Layer II Decoding
Single / Dual / Joint Stereo / Stereo
Sampling Rates: 32 KHz / 44,1 KHz / 48 KHz / 16 KHz / 22.05 KHz / 24 KHz
All bit rates supported
CRC error detection
Error concealment
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