參數(shù)資料
型號(hào): HD49235FS
廠商: Hitachi,Ltd.
元件分類: 數(shù)字信號(hào)處理
英文描述: Digital Signal Processor for CD
中文描述: 數(shù)字信號(hào)處理器的CD
文件頁(yè)數(shù): 35/41頁(yè)
文件大?。?/td> 192K
代理商: HD49235FS
HD49235FS
Rev.2, Aug. 1995, page 35 of 41
8 bit
16 bit
R0
L
M
L
M
L
M
L1-MSB
L1
R1-MSB
R1
L2-MSB
L2
MPX
DAS
CKX
(2.12 MHz)
Figure 22 Audio/ROM Data Output Sequence (When 48-fs Clock is Selected):
DAS Switched at Fall of CKX
16 bit
R0
L
M
L
M
L
L
L1-LSB
L1
R1-LSB
R1
L2-LSB
L2
MPX
DAS
CKX
(2.82 MHz)
16 bit
M
Figure 23 Audio/ROM Data Output Sequence (When 64-fs Clock is Selected):
DAS Switched at Rise of CKX
R0
L
M
L
M
L
M
F/B
SYNC
L1
R1
L2
MPX
DAS
CKX
(2.12 MHz)
8 bit
SUB
CODE
F/B
SYNC
F
B
D
D
D
D
D
D
P
Q
R
S
T
U
V
W
Figure 24 Audio/ROM Data Output Sequence with Subcode Data Inserted (When 48-fs
Clock is Selected): DAS Switched at Fall of CKX
R5
L0
R0
L1
R1
L2
R2 L3
R3
L4
R4
L5
R5
L0
R0
L1
R1
1 frame
1 sector
S2 S3 . . .S96 S97 S0
1 frame
S96 S97 S0
S1
S1
S2
(a) FSYNC Timing
(b) F/B SYNC Timing
DAS
FSYNC
DAS
FSYNC
BSYNC
In audio mode,
FSYNC goes
low at the timing
of the L2 data
Figure 25 F/B SYNC Signal Timing Diagram
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