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AS3502 数据表(PDF) 28 Page - ams AG

部件名 AS3502
功能描述  13-BIT LINEAR FEATURE CODEC WITH ANALOGUE FRONTEND
PDF  29 Pages
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制造商  AMSCO [ams AG]
网页  http://www.ams.com
标志 AMSCO - ams AG

AS3502 数据表(HTML) 28 Page - ams AG

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REV. M
Page 28
September 1998
AS3502
Serial Control Interface Timing (-40°C<TA <+70°C, 3.0 V
£VDD£4.5 V)
#
Parameter
Symbol
Condition
Min.
Typ.*
Max.
Units
1
Frequency of SCL
fSCLK
128
2048
kHz
2
Width of SCL Low
tWCH
160
ns
3
Width of SCL High
tWCL
160
ns
4
Fall Time of SCL
tFC
50
ns
5
Rise Time of SCL
tRC
50
ns
6
Hold Time from SCL High to /CS
Low
tHCS
For 1st SCL
10
ns
7
Hold Time from SCL High to /CS
High
tHSC
For 8th SCL
100
ns
8
Set up Time from /CS Transition
to SCL High
tSSC
60
ns
9
Setup Time from /CS Transition
to SCL Low
tSSC0
SDO is not enabled for a single
byte transfer
60
ns
10
Setup Time SDI Data In toSCL
High
tSDC
50
ns
11
Hold Time SCL High to SDI
Invalid
tHCD
50
ns
12
Delay Time SCL Low to SDO
Data Out Valid
tDCD
100pF + 2 LSTTL Loads
80
ns
13
Delay Time from /CS Low to
SDO Valid
tDSD
Only valid for dual chip selects
80
ns
14
Delay Time from /CS Low to
SDO High Impedance,
whichever comes earlier
tDDZ
15
80
ns
1
2
88
SCL
CS
SDI
SDO
1
6
8
2
3
10
11
7
0
0
7
70
1
4
5
6
7
8
9
12
13
7
14
14
6
Serial Control Interface Timing Diagramme



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