參數(shù)資料
型號: AK4682
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Multi-channel CODEC with 2Vrms Stereo Selector
中文描述: 多通道選擇與2Vrms的立體聲編解碼器
文件頁數(shù): 9/43頁
文件大小: 667K
代理商: AK4682
[AK4682]
MS0610-E-01
2007/07
- 9 -
DC CHARACTERISTICS
(Ta=-20
°
C ~+85
°
C; TVDD=2.7 ~ 5.25V; DVDD1, DVDD2, AVDD1, AVDD2=4.75 ~ 5.25V; PVDD=8.5
12.6V)
Parameter
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage ( Iout=-400
μ
A)
Low-Level Output Voltage
(Iout= -400
μ
A(except SDA pin), 3mA(SDA pin))
Input Leakage Current
SWITCHING CHARACTERISTICS
(Ta=-20
°
C ~+85
°
C; TVDD=2.7 ~ 5.25V; DVDD1, DVDD2, AVDD1, AVDD2=4.75 ~ 5.25V; PVDD=8.5
12.6V; C
L
=
20pF (except for SDA pin), Cb=400pF(SDA pin))
Parameter
Symbol
Master Clock Timing
Frequency
Duty
dECLK
Master Clock
(Note: 10)
256fsn, 128fsd:
Pulse Width Low
Pulse Width High
384fsn, 192fsd:
Pulse Width Low
Pulse Width High
512fsn, 256fsd, 128fsq:
Pulse Width Low
Pulse Width High
768fsn, 384fsd, 192fsq:
Pulse Width Low
Pulse Width High
tCLKH
LRCKA (LRCKB) Timing (Slave Mode)
Normal mode
Normal Speed Mode
Double Speed Mode
Quad Speed Mode
Duty Cycle
Duty
TDM 128 mode
LRCKA frequency
“H” time
“L” time
tLRL
LRCKB Timing (Master Mode)
Normal mode
LRCKB frequency
Duty Cycle
Duty
Power-down & Reset Timing
PDN Pulse Width (Note: 11)
PDN “
” to SDTOB valid (Note: 12)
tPDV
Note: 10 MCLKB supports only the normal mode (256fsn, 384fsn, 512fsn, 768fsn).
Note: 11 The AK4682 can be reset by bringing the PDN pin = “L”.
Note: 12 These cycles are the number of LRCKB rising from PDN rising.
Symbol
VIH
VIL
VOH
VOL
min
2.2
-
typ
-
-
-
max
-
0.8
-
0.4
Units
V
V
V
V
TVDD-0.4
-
Iin
-
-
±
10
μ
A
min
8.192
40
8.192
27
27
12.288
20
20
16.384
15
15
24.576
10
10
32
64
120
45
32
1/128fs
1/128fs
32
150
typ
50
max
36.864
60
12.288
18.432
24.576
36.864
Units
fECLK
MHz
%
fCLK
tCLKL
tCLKH
fCLK
tCLKL
tCLKH
fCLK
tCLKL
tCLKH
fCLK
tCLKL
MHz
ns
ns
MHz
ns
ns
MHz
ns
ns
MHz
ns
ns
fsn
fsd
fsq
48
96
192
55
96
kHz
kHz
kHz
%
kHz
ns
ns
kHz
%
ns
1/fs
fs
tLRH
fs
50
522
48
tPD
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