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參數(shù)資料
| 型號： | SAA7327 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Digital servo processor and Compact Disc decoder with integrated DAC for video CD (CD7 II)(應(yīng)用于視頻CD的帶綜合數(shù)模轉(zhuǎn)換器（DAC）的數(shù)字伺服處理器和光盤譯碼器) |
| 中文描述： | 數(shù)字伺服處理器和光盤解碼器集成了用于視頻光盤（CD7抗原二）（應(yīng)用于視頻光碟的帶綜合數(shù)模轉(zhuǎn)換器（DAC）的的數(shù)字伺服處理器和光盤譯碼器援會） |
| 文件頁數(shù)： | 14/68頁 |
| 文件大?。?/td> | 284K |
| 代理商： | SAA7327 |
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2000 Jun 26
14
Philips Semiconductors
Product specification
Digital servo processor and Compact Disc
decoder with integrated DAC for video CD (CD7 II)
SAA7327
W96
1
Q
R
S
T
U
V
W
1
Q
200/n
μ
s
min
11.3/n
μ
s
11.3/n
μ
s min
90/n
μ
s max
MBG401
Fig.9 Subcode format and timing on pin V4.
n = disc speed.
7.6
FIFO and error corrector
The SAA7327 has a
±
8 frame FIFO. The error corrector is
a t = 2, e = 4 type, with error corrections on both C1
(32 symbol)and C2(28 symbol)frames.Foursymbolsare
used from each frame as parity symbols. This error
corrector can correct up to two errors on the C1 level and
up to four errors on the C2 level.
The error corrector also contains a flag processor. Flags
are assigned to symbols when the error corrector cannot
ascertain if the symbols are definitely good. C1 generates
output flags which are read after (de-interleaving) by C2,
to help in the generation of C2 output flags.
The C2 output flags are used by the interpolator for
concealment of uncorrectable errors. They are also output
via the EBU signal (DOBM). The EF output will flag bytes
in error in both audio and CD-ROM modes.
7.6.1
F
LAGS OUTPUT
(CFLG)
The flags output pin CFLG shows the status of the error
corrector and interpolator and is updated every frame
(7.35
×
n kHz). In the SAA7327 chip a 1-bit flag is present
on the CFLG pin as illustrated in Fig.10. This signal shows
the status of the error corrector and interpolator.
The first flag bit, F1, is the absolute time sync signal, the
FIFO-passed subcode sync and relates the position of the
subcode sync to the audio data (DAC output). This flag
mayalsobeusedinasuperFIFOorinthesynchronization
of different players. The output flags can be made
available at bit 4 of the EBU data format (LSB of the 24-bit
data word), if selected by decoder register A.
handbook, full pagewidth
F1
F2
F3
F4
F5
F6
F7
F8
F1
F8
11.3/n
μ
s
33.9/n
μ
s
33.9/n
μ
s
MBG425
Fig.10 Flag output timing diagram.
n = disc speed.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAA7335GP | DSP for CD and DVD-ROM systems |
| SAA7335 | DSP for CD and DVD-ROM systems(在CD和DVD-ROM應(yīng)用中的DSP) |
| SAA7341 | COMS Digital decoding IC for Compact Disc |
| SAA7341GP | COMS Digital decoding IC for Compact Disc |
| SAA7345 | Bitstream conversion ADC for digital audio systems |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA7327H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital servo processor and Compact Disc decoder with integrated DAC for video CD CD7 II |
| SAA7327H/T/M2B,557 | 功能描述:視頻 IC COMPACT DISC SYSTEMS RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| SAA7327HBG | 功能描述:視頻 IC COMPACT DISC SYSTEMS RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| SAA7335 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DSP for CD and DVD-ROM systems |
| SAA7335GP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DSP for CD and DVD-ROM systems |
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