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參數(shù)資料
| 型號： | GS1503-CFZ |
| 廠商： | Gennum Corporation |
| 元件分類： | Codec |
| 英文描述： | HD EMBEDDED AUDIO CODEC |
| 中文描述： | 高清嵌入式音頻編解碼 |
| 文件頁數(shù)： | 25/83頁 |
| 文件大?。?/td> | 815K |
| 代理商： | GS1503-CFZ |
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1.7 AUDIO DATA PACKETS
1.7.1 Audio Data Packet Structure
Figure 23 shows the structure of the audio data packets as
defined in SMPTE 299M. The audio data packets are
multiplexed into the Chroma channel of the video data
stream. Table 4 lists the description of the individual audio
data packet words. Note that the GS1503 will automatically
generate certain audio data packet words.
Fig. 23 Audio Data Packet Structure
1.7.2 Audio Data Packet DID Setting
The audio group DID for audio input channels 1 to 4 (AIN1/
2 and AIN3/4) is set in DATAIDA[1:0] bits 1-0 of Host
Interface register 014h. The audio group DID for audio input
channels 5 to 8 (AIN5/6 and AIN7/8) is set in DATAIDB[1:0]
bits 3-2 of Host Interface register 014h. Table 5 shows the
2-bit Host Interface setting for the corresponding audio
group DID.
When CASCADE is set LOW (external pin or register), the
GS1503 will default to audio groups 1 and 2, where AIN1/2
and AIN3/4 will be multiplexed with audio group 1 DID, and
AIN5/6 and AIN7/8 with audio group 2 DID.
Table 4: Audio Data Packet Word Descriptions
NAME
NO OF
WORDS
DESCRIPTION
DATA
AUTO-GENERATION
ADF
3
Ancillary Data Flag
000h
3FFh
3FFh
Yes
DID
1
Audio Group Data ID
2E7h
1E6h
1E5h
2E4h
See Table 5 in
Section 1-7-2
DBN
1
Data Block Number
Repeat 1-255
Yes
DC
1
Data Count
218h
Yes
CLK
2
Audio Clock Phase Data
-
Yes
CH1
4
Channel 1 audio data
-
CH2
4
Channel 2 audio data
-
CH3
4
Channel 3 audio data
-
CH4
4
Channel 4 audio data
-
ECC0-5
6
Error correction code for lower 8 bits of first 24 words
-
Yes
CS
1
Checksum. Calculates the sum of lower 9 bits of 22
words from DID
-
Yes
A
User Data Words
E
1
D
D
D
C
C
C
C
C
E
E
E
E
E
C
ECC Protected
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相關代理商/技術參數(shù) |
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| GS1504 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:HDTV Adaptive Equalizer |
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| GS1504-CKD | 制造商:Rochester Electronics LLC 功能描述: 制造商:Gennum Corporation 功能描述: |
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| GS1504-CTD | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:HDTV Adaptive Equalizer |
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