參數(shù)資料
型號(hào): AK4115
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: High Feature 192kHz 24bit Digital Audio Interface Transceiver
中文描述: 高功能192kHz的24位數(shù)字音頻接口收發(fā)器
文件頁數(shù): 59/64頁
文件大?。?/td> 606K
代理商: AK4115
ASAHI KASEI
[AK4115]
MS0573-E-00
2006/12
- 59 -
Burst Preambles in non-PCM Bitstreams
0
16 bits of bitstream
3 4
7 8
11 12
27 28 29 30 31
preamble
Aux.
LSB
MSB V U C P
sub-frame of IEC958
0
15
Pa Pb Pc Pd
Burst_payload
stuffing
repetition time of the burst
Figure 50. Data structure in IEC60958
Preamble word
Pa
Pb
Pc
Pd
Length of field
16 bits
16 bits
16 bits
16 bits
Contents
sync word 1
sync word 2
Burst info
Length code
Value
0xF872
0x4E1F
see Table 33
numbers of bits
Table 32. Burst preamble words
Bits of Pc Value
Contents
Repetition time of burst
in IEC60958 frames
4096
1536
384
1152
1152
1024
384
1152
512
1024
2048
512
1024
0-4
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16-31
0
0
1
data type
NULL data
Dolby AC-3 data
reserved
PAUSE
MPEG-1 Layer1 data
MPEG-1 Layer2 or 3 data or MPEG-2 without extension
MPEG-2 data with extension
MPEG-2 AAC ADTS
MPEG-2, Layer1 Low sample rate
MPEG-2, Layer2 or 3 Low sample rate
reserved
DTS type I
DTS type II
DTS type III
ATRAC
ATRAC2/3
reserved
reserved, shall be set to “0”
error-flag indicating a valid burst_payload
error-flag indicating that the burst_payload may contain
errors
data type dependent info
bit stream number, shall be set to “0”
Table 33. Fields of burst info Pc
5, 6
7
8-12
13-15
0
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