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參數資料
| 型號： | LC7871NE |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封裝： | QFP-100 |
| 文件頁數： | 1/19頁 |
| 文件大?。?/td> | 299K |
| 代理商： | LC7871NE |
Ordering number : EN4861
51795TH (OT) No. 4861-1/19
Overview
The LC7871E and LC7871NE are CMOS LSIs that
integrate the signal processing functions required for
compact disk extended graphics (CD-EG) decoding in a
single chip. These products accept the R to W subcode
signals output by CDP-DSP products such as the
LC7860KA, LC7867E, LC7868E, LC7869E, or
LC78681E, and perform de-interleaving, error detection
and correction, graphics instruction processing, and image
processing.
Functions
The LC7871E and LC7871NE allow a CD-EG decoder
to be constructed with only three chips with the addition
of two external DRAMs (64k
× 4). (An RGB encoder is
provided on chip.)
The LC7871E and LC7871NE perform subcode
synchronization signal interpolation and protection.
They also perform R to W signal de-interleaving and
error detection and correction.
These products include two crystal oscillator systems
(one for NTSC and one for PAL) which can be easily
switched from a control pin. These products generate the
reference clocks as well as all internal timings for these
two standards by using a 14.31818 MHz crystal for
NTSC and a 17.734476 MHz crystal for PAL.
Control of image display using CD graphics instructions
and display processing.
Composite video 8-bit D/A converter output as well as
“define-transparency” 6-bit D/A converter output.
Support for superimposition
Microprocessor interface function that supports end-
product upgrades.
External input pin for channel selection
Built-in 6-bit RGB D/A converters
The only difference between the LC7871E and the
LC7871NE is in the BGC to VRAM transfer.
The LC7871E uses a preset memory instruction for
transfer to VRAM, whereas the LC7871NE uses the
load CLUT instruction.
Features
A CD-G decoder can be constructed from only two
chips, since no controller is required.
A CD-EG decoder can be constructed with the addition
of two 256-kbit DRAMs since no controller is required.
Silicon gate CMOS process for low power dissipation
5 V single voltage power supply
Package Dimensions
unit: mm
3151-QFP100E
SANYO: QIP100E
[LC7871E, 7871NE]
LC7871E, 7871NE
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
CD Graphics Decoder
CMOS LSI
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LC7872E | 制造商:Panasonic Industrial Company 功能描述:IC |
| LC7874E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:CD Graphics Decorder |
| LC7876E | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LC7880 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:16 bit D/A CONVERTER |
| LC7880M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:16 bit D/A CONVERTER |
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