參數(shù)資料
型號(hào)： SAA7376
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： Digital servo processor and Compact Disc decoder CD7
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝： 14 X 14 MM, 2.70 MM HEIGHT, PLASTIC, MS-022, SOT-393-1, QFP-64
文件頁(yè)數(shù)： 11/56頁(yè)
文件大小： 311K
代理商： SAA7376
1998 Feb 26
11
Philips Semiconductors
Product specifications
Digital servo processor and Compact Disc
decoder (CD7)
SAA7376
7.5
Subcode data processing
7.5.1
Q-
CHANNEL PROCESSING
The 96-bit Q-channel word is accumulated in an internal
buffer. The last 16 bits are used internally to perform a
Cyclic Redundancy Check (CRC). If the data is good, the
SUBQREADY-I signal will go LOW. SUBQREADY-I can
be read via the SDA or STATUS pins, selected via
register 2. Good Q-channel data may be read from SDA.
7.5.2
EIAJ 3
AND
4-
WIRE SUBCODE
(CD
GRAPHICS
)
INTERFACES
Data from all the subcode channels (P-to-W) may be read
via the subcode interface, which conforms to
EIAJ CP-2401. The interface is enabled and configured as
either a 3-wire or 4-wire interface via register F. The
subcode interface output formats are illustrated in Fig.7,
where the RCK signal is supplied by another device such
as a CD graphics decoder.
7.5.3
V4
SUBCODE INTERFACE
Data of subcode channels, Q-to-W, may be read via pin V4
if selected via register D. The format is similar to RS232
and is illustrated in Fig.8. The subcode sync word is
formed by a pause of 200
μ
s minimum. Each subcode byte
starts with a logic 1 followed by 7 bits (Q-to-W). The gap
between bytes is variable between 11.3
μ
s and 90
μ
s.
The subcode data is also available in the EBU output
(DOBM) in a similar format.
Fig.7 EIAJ subcode (CD graphics) interface format.
handbook, full pagewidth
SBSY
SFSY
RCK
SUB
SFSY
RCK
SUB
SFSY
RCK
SUB
EIAJ 4-wire subcode interface
EIAJ 3-wire subcode interface
SF0
SF1
SF2
SF3
SF97
SF0
SF1
P-W
P-W
P-W
P-W
P-W
P-W
P
Q
R
S
T
U
V
W
MBG410
SF0
SF1
SF2
SF3
SF97
SF0
SF1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA7377 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital servo processor and Compact Disc decoder CD7
SAA7377GP 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital servo processor and Compact Disc decoder CD7
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SAA7378GP 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single Chip Digital Servo Processor and Compact Disc Decoder
SAA7380 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Error correction and host interface IC for CD-ROM ELM
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