- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385814 > SAA7325 (NXP Semiconductors N.V.) Digital servo processor and Compact Disc decoder with integrated DAC (CD10 II)(具有綜合數(shù)模轉(zhuǎn)換器（DAC）的數(shù)字伺服處理器和光盤譯碼器) PDF資料下載
參數(shù)資料
| 型號： | SAA7325 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Digital servo processor and Compact Disc decoder with integrated DAC (CD10 II)(具有綜合數(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援會（CD10型二）（具有綜合數(shù)模轉(zhuǎn)換器（DAC）的的數(shù)字伺服處理器和光盤譯碼器） |
| 文件頁數(shù)： | 20/68頁 |
| 文件大?。?/td> | 281K |
| 代理商： | SAA7325 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁當前第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁
2000 Jun 26
20
Philips Semiconductors
Product specification
Digital servo processor and Compact Disc
decoder with integrated DAC (CD10 II)
SAA7325
7.9
EBU interface
The bi-phase mark digital output signal at pin DOBM is in
accordance with the format defined by the IEC958
specification. Three different modes can be selected via
decoder register A:
DOBM pin held LOW
Data taken before concealment, mute and fade (must
always be used for CD-ROM modes)
Data taken after concealment, mute and fade.
7.9.1
F
ORMAT
The digital audio output consists of 32-bit words
(‘subframes’) transmitted in bi-phase mark code (two
transitions for a logic 1 and one transition for a logic 0).
Words are transmitted in blocks of 384. The formats are
given in Table 6.
Table 6
Format
Table 7
Description of table 6
Table 8
Bit assignment
FUNCTION
BITS
DESCRIPTION
Sync
Auxiliary
Error flags
Audio sample
Validity flag
User data
Channel status
Parity bit
0 to 3
4 to 7
4
8 to 27
28
29
30
31
not used; normally zero
CFLG error and interpolation flags when selected by register A
first 4 bits not used (always zero) twos complement LSB = bit 12, MSB = bit 27
valid = logic 0
used for subcode data (Q-to-W)
control bits and category code
even parity for bits 4 to 30
FUNCTION
DESCRIPTION
Sync
The sync word is formed by violation of the bi-phase rule and therefore does not contain any data.
Its length is equivalent to 4 data bits. The 3 different sync patterns indicate the following situations:
sync B: start of a block (384 words), word contains left sample; sync M: word contains left sample
(no block start) and sync W: word contains right sample.
Left and right samples are transmitted alternately.
Audio samples are flagged (bit 28 = 1) if an error has been detected but was uncorrectable.
This flag remains the same even if data is taken after concealment.
Subcode bits Q-to-W from the subcode section are transmitted via the user data bit. This data is
asynchronous with the block rate.
The channel status bit is the same for left and right words. Therefore a block of 384 words contains
192 channel status bits. The category code is always CD. The bit assignment is given in Table 8.
Audio sample
Validity flag
User data
Channel status
FUNCTION
BITS
DESCRIPTION
Control
0 to 3
copy of CRC checked Q-channel control bits 0 to 3; bit 2 is logic 1 when
copy permitted; bit 3 is logic 1 when recording has pre-emphasis
always zero
CD: bit 8 = logic 1, all other bits = logic 0
set by register A; 10 = level I; 00 = level II; 01 = level III
always zero
Reserved mode
Category code
Clock accuracy
Remaining
4 to 7
8 to 15
28 to 29
6 to 27 and 30 to 191
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAA7326 | Digital servo processor and Compact Disc decoder with integrated DAC (CD10 II)(具有綜合數(shù)模轉(zhuǎn)換器（DAC）的數(shù)字伺服處理器和光盤譯碼器) |
| SAA7388GP | Error correction and host interface IC for CD-ROM ELM |
| SAA7388 | Error correction and host interface IC for CD-ROM ELM |
| SAA7392HL | Channel encoder/decoder CDR60 |
| SAA7392 | Channel encoder/decoder CDR60(通道編碼器/譯碼器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA7325H | 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 CD10 |
| SAA7326 | 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 CD10 |
| SAA7326H | 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 CD10 |
| SAA7327 | 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 | 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。