參數(shù)資料
型號： AK4671EG
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： Stereo CODEC with MIC/RCV/HP-AMP
中文描述： 立體聲編解碼器麥克風(fēng)/垃圾車/惠普腺苷
文件頁數(shù)： 103/164頁
文件大?。?/td> 1792K
代理商： AK4671EG
[AK4671]
MS0666-E-00
2007/10
- 103 -
■
PCM I/F A & B Format
AK4671 supports dual PCM I/F (PCM I/F A & PCM I/F B) that supports 3 kind of I/F (16bit Linear, 8bit A-Law and 8bit
μ
-Law) independently (
Table 82
and
Table 83
).
Mode
LAWA1
LAWA0
0
0
0
1
0
1
2
1
0
3
1
1
Table 82. PCM I/F A Mode (N/A: Not available)
Mode
LAWB1
LAWB0
0
0
0
1
0
1
2
1
0
3
1
1
Table 83. PCM I/F B Mode (N/A: Not available)
Four types of data formats are available and are selected by setting the FMTA1-0 and FMTB1-0 bits independently (
Table
84
and
Table 85
). In 16bit Linear mode, the serial data is MSB first, 2’s complement format. In 8bit A-Law and
μ
-Law
Mode, the serial data is MSB first. PCM I/F formats can be used in both master and slave modes. SYNCA/B and
BICKA/B are output from the AK4671 in master mode, but must be input to the AK4671 in slave mode.
Mode
FMTA1
FMTA0
Format
0
0
0
Short Frame Sync
1
0
1
Long Frame Sync
2
1
0
MSB justified
3
1
1
I
2
S
Table 84. PCM I/F A Format
Mode
FMTB1
FMTB0
Format
0
0
0
Short Frame Sync
1
0
1
Long Frame Sync
2
1
0
MSB justified
3
1
1
I
2
S
Table 85. PCM I/F B Format
In modes 2 and 3, the SDTOA/B is clocked out on the falling edge (“
↓
”) of BICKA/B and the SDTIA/B is latched on the
rising edge (“
↑
”).
In Modes 0 and 1, PCM I/F A timing is changed by BCKPA and MSBSA bits,and PCM I/F B timing is changed by
BCKPB and MSBSB bits.
When BCKPA bit = “0”, the SDTOA is clocked out on the rising edge (“
↑
”) of BICKA and the SDTIA is latched on the
falling edge (“
↓
”). When BCKPA bit = “1”, the SDTOA is clocked out on the falling edge (“
↓
”) of BICKA and the
SDTIA is latched on the rising edge (“
↑
”).
MSBSA bit can shift the MSB position of SDTOA and SDTIA by half period of BICKA.
When BCKPB bit = “0”, the SDTOB is clocked out on the rising edge (“
↑
”) of BICKB and the SDTIB is latched on the
falling edge (“
↓
”). When BCKPB bit = “1”, the SDTOB is clocked out on the falling edge (“
↓
”) of BICKB and the
SDTIB is latched on the rising edge (“
↑
”).
MSBSB bit can shift the MSB position of SDTOB and SDTIB by half period of BICKB.
Format
16bit Linear
N/A
8bit A-Law
8bit
μ
-Law
(default)
Format
16bit Linear
N/A
8bit A-Law
8bit
μ
-Law
(default)
BICKA
≥
16fs2
≥
16fs2
≥
32fs2
≥
32fs2
Figure
See
Table 86
See
Table 88
Figure 92
Figure 93
(default)
BICKB
≥
16fs2
≥
16fs2
≥
32fs2
≥
32fs2
Figure
See
Table 87
See
Table 89
Figure 92
Figure 93
(default)
相關(guān)PDF資料
PDF描述
AK4673 Stereo CODEC with MIC/HP-AMP and Touch Screen Controller
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4673 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/HP-AMP and Touch Screen Controller
AK4673EG 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/HP-AMP and Touch Screen Controller
AK4675 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/RCV/HP/SPK-AMP
AK4675EG 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/RCV/HP/SPK-AMP
AK4682 制造商:AKM 制造商全稱:AKM 功能描述:Multi-channel CODEC with 2Vrms Stereo Selector
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