參數(shù)資料
型號: AK4648EC
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Stereo CODEC with MIC/HP/SPK-AMP
中文描述: 立體聲編解碼器麥克風(fēng)/惠普/胰腎聯(lián)合移植腺苷
文件頁數(shù): 22/119頁
文件大小: 1272K
代理商: AK4648EC
[AK4648]
MS0625-E-01
2007/06
- 22 -
Parameter
PLL Slave Mode (PLL Reference Clock = LRCK pin)
LRCK Input Timing
Frequency
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
BICK Input Timing
Period
Pulse Width Low
Pulse Width High
PLL Slave Mode (PLL Reference Clock = BICK pin)
LRCK Input Timing
Frequency
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
BICK Input Timing
Period
PLL3-0 bits = “0010”
PLL3-0 bits = “0011”
Pulse Width Low
Pulse Width High
External Slave Mode
MCKI Input Timing
Frequency
256fs
512fs
1024fs
Pulse Width Low
Pulse Width High
LRCK Input Timing
Frequency
256fs
512fs
1024fs
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
BICK Input Timing
Period
Pulse Width Low
Pulse Width High
External Master Mode
MCKI Input Timing
Frequency
256fs
512fs
1024fs
Pulse Width Low
Pulse Width High
LRCK Output Timing
Frequency
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
BICK Output Timing
Period
BCKO bit = “0”
BCKO bit = “1”
Duty Cycle
Symbol
min
typ
max
Units
fs
7.35
-
-
-
48
kHz
ns
%
tLRCKH
Duty
tBCK
60
45
1/fs
tBCK
55
tBCK
tBCKL
tBCKH
1/(64fs)
130
130
-
-
-
1/(32fs)
-
-
ns
ns
ns
fs
7.35
-
-
-
48
kHz
ns
%
tLRCKH
Duty
tBCK
60
45
1/fs
tBCK
55
tBCK
tBCK
tBCKL
tBCKH
-
-
1/(32fs)
1/(64fs)
-
-
-
-
-
-
ns
ns
ns
ns
0.4 x tBCK
0.4 x tBCK
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
fs
fs
7.35
7.35
7.35
-
-
-
-
-
48
26
13
kHz
kHz
kHz
ns
%
tLRCKH
Duty
tBCK
60
45
1/fs
tBCK
55
tBCK
tBCKL
tBCKH
312.5
130
130
-
-
-
-
-
-
ns
ns
ns
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
tBCK
tBCK
dBCK
-
-
-
1/(32fs)
1/(64fs)
50
-
-
-
ns
ns
%
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