參數(shù)資料
型號(hào)： SAA7818HL
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： DVD and CD playback IC
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP208
封裝： 28 X 28 MM, 1.40 MM HEIGHT, PLASTIC, SOT-459-1, MS-026, LQFP-208
文件頁(yè)數(shù)： 1/30頁(yè)
文件大?。?/td> 118K
代理商： SAA7818HL
1.
General description
The SAA7818HL is a device for 6
×
DVD and 18
×
CD playback applications.
This device contains an embedded microcontroller which can operate as a 33 MHz or
67 MHz equivalent 80C51 and interfaces to the channel decoder, block decoder and servo
processor.
New features enable superior playability in both CD and DVD modes.
The block decoder has an embedded DVD video authentication module and supports up
to 64 Mbit of external SDRAM memory. The data can be fed out in a number of different
configurations including I
2
S-bus, ATAPI and UDE. This device also includes the option to
bypass the external memory altogether, creating a bufferless ATAPI or UDE data path
solution.
The channel decoder has selectable differential and single-ended HF inputs, which are
compatible with the TZA1036 and TZA1038 devices. There is an option to output the data
as raw I
2
S-bus via some programmable data I/O pins. With increased tap setting for the
PLL equalizer compared with the SAA7816 device and enhanced playability of black dots
and scratches, overall playability has been greatly improved. There are also benefits due
to a new defect detector that allows holding the HF PLL frequency and slicer settings over
a defect. These, together with an additional limit equalizer lead to improved tolerance to
continuity errors in DVD playback mode. There are also two extra motor gain settings
compared to the SAA7816 device and support for copyright protection strategies in games
applications.
The servo processor has been upgraded to include an improved defect detection and
handling process, an integrated envelope detection circuit and also DC offset
compensation on the diode inputs.
2.
Features
I
Host interface:
N
Supports ATAPI interface
N
Configurable as generic DMA interface; for use with external host interface devices
N
Automatic determination of block length for mode 2; form 1 and form 2 sectors;
block length transferred is programmable
N
Supports synchronous UDE interface
N
Supports bufferless mode.
I
Block decoder:
N
Supports CD-ROM, CDr, CD-DA, VCD, SVCD, CD-I, photo CD and DVD video
formats
SAA7818HL
DVD and CD playback IC
Rev. 03 — 25 November 2004
Product data sheet
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