參數(shù)資料
型號(hào): AK4673EG
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Stereo CODEC with MIC/HP-AMP and Touch Screen Controller
中文描述: 立體聲編解碼器麥克風(fēng)/惠普- AMP及觸摸屏控制器
文件頁(yè)數(shù): 18/107頁(yè)
文件大?。?/td> 1171K
代理商: AK4673EG
[AK4673]
MS0670-E-00
2007/09
- 18 -
Parameter
External Master Mode
MCKI Input Timing
Frequency
Pulse Width Low
Pulse Width High
LRCK Output Timing
Frequency
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
BICK Output Timing
Period
Duty Cycle
Audio Interface Timing (DSP Mode)
Master Mode
LRCK “
” to BICK “
” (
Note 30
)
LRCK “
” to BICK “
” (
Note 31
)
BICK “
” to SDTO (BCKP bit = “0”)
BICK “
” to SDTO (BCKP bit = “1”)
SDTI Hold Time
SDTI Setup Time
Slave Mode
LRCK “
” to BICK “
” (
Note 30
)
LRCK “
” to BICK “
” (
Note 31
)
BICK “
” to LRCK “
” (
Note 30
)
BICK “
” to LRCK “
” (
Note 31
)
BICK “
” to SDTO (BCKP bit = “0”)
BICK “
” to SDTO (BCKP bit = “1”)
SDTI Hold Time
SDTI Setup Time
Audio Interface Timing (Right/Left justified & I
2
S)
Master Mode
BICK “
” to LRCK Edge (
Note 30
)
LRCK Edge to SDTO (MSB)
(Except I
2
S mode)
BICK “
” to SDTO
SDTI Hold Time
SDTI Setup Time
Slave Mode
LRCK Edge to BICK “
” (
Note 31
)
BICK “
” to LRCK Edge (
Note 32
)
LRCK Edge to SDTO (MSB)
(Except I
2
S mode)
BICK “
” to SDTO
SDTI Hold Time
SDTI Setup Time
Note 30. MSBS, BCKP bits = “00” or “11”.
Note 31. MSBS, BCKP bits = “01” or “10”.
Note 32. BICK rising edge must not occur at the same time as LRCK edge.
Symbol
Min
typ
max
Units
256fs
512fs
1024fs
fCLK
fCLK
fCLK
tCLKL
tCLKH
1.8816
3.7632
7.5264
0.4/fCLK
0.4/fCLK
-
-
-
-
-
12.288
13.312
13.312
-
-
MHz
MHz
MHz
Ns
Ns
fs
7.35
-
-
-
48
-
-
kHz
ns
%
tLRCKH
Duty
tBCK
50
BCKO bit = “0”
BCKO bit = “1”
tBCK
tBCK
dBCK
-
-
-
1/(32fs)
1/(64fs)
50
-
-
-
ns
ns
%
tDBF
tDBF
tBSD
tBSD
tSDH
tSDS
0.5 x tBCK
40
0.5 x tBCK
40
70
70
50
50
0.5 x tBCK 0.5 x tBCK + 40
0.5 x tBCK 0.5 x tBCK + 40
-
-
-
-
ns
ns
ns
ns
ns
ns
70
70
-
-
tLRB
tLRB
tBLR
tBLR
tBSD
tBSD
tSDH
tSDS
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
-
-
50
50
-
-
-
-
-
-
-
-
-
-
-
-
ns
ns
ns
ns
ns
ns
ns
ns
80
80
-
-
tMBLR
tLRD
tBSD
tSDH
tSDS
40
70
70
50
50
-
-
-
-
-
40
70
70
-
-
ns
ns
ns
ns
ns
tLRB
tBLR
tLRD
tBSD
tSDH
tSDS
50
50
-
-
50
50
-
-
-
-
-
-
-
-
ns
ns
ns
ns
ns
ns
80
80
-
-
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