參數(shù)資料
型號: AK5351
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: Enhanced Dual Bit ΔΣ 20 Bit ADC(用于立體聲數(shù)字系統(tǒng)的20位2通道A/D轉(zhuǎn)換器(采用加強型雙位結(jié)構(gòu)))
中文描述: 增強雙位ΔΣ20位ADC(用于立體聲數(shù)字系統(tǒng)的20位2通道的A / D轉(zhuǎn)換器(采用加強型雙位結(jié)構(gòu)))
文件頁數(shù): 8/19頁
文件大?。?/td> 174K
代理商: AK5351
ASAHI KASEI
[AK5351]
0166-E-00
1997/4
- 8 -
SWITCHING CHARACTERISTICS
(Ta=25
°
C; VA,VD,VB=5.0V±10%; C
L
=20pF)
Parameter
Symbol
min
typ
max
Unit
Control Clock Frequency
Master Clock 256fs:
Pulse width Low
Pulse width High
384fs:
Pulse width Low
Pulse width High
Serial Data Output Clock
Channel Select Clock(Sampling Frequency)
Duty Cycle
Serial Interface Timing (Note 14 )
Slave Mode(SMODE1="L")
SCLK Period
SCLK Pulse width Low
Pulse width High
SCLK Rising to LRCK Edge (Note 15 )
LRCK Edge to SCLK Rising (Note 15 )
LRCK Edge to SDATA MSB Valid
SCLK Falling to SDATA Valid
SCLK Rising to FSYNC Edge(Note 15 )
FSYNC Edge to SCLK Rising(Note 15 )
Master Mode(SMODE1="H")
SCLK Frequency
Duty Cycle
FSYNC Frequency
Duty Cycle
SCLK Falling to LRCK Edge
LRCK Edge to FSYNC Rising
SCLK Falling to SDATA Valid
SCLK Falling to FSYNC Edge
Power down timing
PD Pulse width
PD Rising to SDATA Valid (Note 16 )
Note 14 : Refer to Serial Data Interface.
Note 15 : Specified LRCK and FSYNC edges not to coincide with the rising edges of SCLK.
Note 16 : The number of LRCK rising edges after PD brought high. The value is in master mode.
In slave mode it becomes one LRCK clock(1/fs) longer.
f
CLK
t
CLKL
t
CLKH
f
CLK
t
CLKL
t
CLKH
f
SLK
fs
2.048
30.0
30.0
3.072
20.0
20.0
8
25
12.288
18.432
3.072
48
13.824
20.736
6.912
54
75
MHz
ns
ns
MHz
ns
ns
MHz
kHz
%
t
SLK
t
SLKL
t
SLKH
t
SHLR
t
LRSH
t
DLR
t
DSS
t
SHF
t
FSH
f
SLK
f
FSYNC
t
SLR
t
LRF
t
DSS
t
SF
144.7
65
65
30
30
30
30
-20
-20
64fs
50
2fs
50
1
50
50
20
50
20
ns
ns
ns
ns
ns
ns
ns
ns
ns
Hz
%
Hz
%
ns
tslk
ns
ns
t
PDW
t
PDV
150
516
ns
1/fs
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