ak4115 AKM Semiconductor, Inc., ak4115 Datasheet - Page 59

• Manufacturer Part Number: ak4115
• Description: High Feature 192khz 24bit Digital Audio Interface Transceiver
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
MS0573-E-00
Bits of Pc Value
0-4
5, 6
7
8-12
13-15
Burst Preambles in non-PCM Bitstreams
Preamble word
Pa
Pb
Pc
Pd
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16-31
0
0
1
0
Contents
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”
Pa Pb Pc Pd
0
preamble
Length of field
16 bits
16 bits
16 bits
16 bits
3 4
Aux.
7 8
Figure 50. Data structure in IEC60958
Table 33. Fields of burst info Pc
Table 32. Burst preamble words
repetition time of the burst
11 12
sub-frame of IEC958
Burst_payload
LSB
0
Contents
sync word 1
sync word 2
Burst info
Length code
- 59 -
16 bits of bitstream
stuffing
Repetition time of burst
in IEC60958 frames
≤4096
1536
384
1152
1152
1024
384
1152
512
1024
2048
512
1024
MSB V U C P
Value
0xF872
0x4E1F
see Table 33
numbers of bits
27 28 29 30 31
15
[AK4115]
2006/12