參數(shù)資料
型號： ADS5500
英文描述： 14-Bit, 80MSPS Analog-to-Digital Converter
中文描述： 14位，80Msps模擬到數(shù)字轉換器
文件頁數(shù)： 8/30頁
文件大?。?/td> 401K
代理商： ADS5500
SBAS308A MAY 2004 REVISED MARCH 2005
www.ti.com
8
t
SLOADS
t
WSCLK
t
OS
t
OH
t
WSCLK
t
SCLK
16 x M
MSB
LSB
LSB
MSB
t
SLOADH
SCLK
SEN
SDATA
Figure 4. Serial Programming Interface Timing Diagram
Table 1. Serial Programming Interface Timing Characteristics
SYMBOL
PARAMETER
MIN(1)
TYP(1)
MAX(1)
UNIT
t
SCLK
SCLK Period
50
ns
t
WSCLK
SCLK Duty Cycle
25
50
75
%
t
SLOADS
SEN to SCLK setup time
8
ns
t
SLOADH
SCLK to SEN hold time
6
ns
t
DS
Data Setup Time
8
ns
t
DH
Data Hold Time
6
ns
(1)Typ, min, and max values are characterized, but not production tested.
Table 2. Serial Register Table
A3
A2
A1
A0
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
DESCRIPTION
1
1
1
0
0
TP<1>
TP<0>
0
0
0
0
0
0
0
0
0
TP<1:0> Test modes for output data capture
TP<1:0> = 00: Normal mode of operation
TP<1:0> = 01: All outputs forced to 0
TP<1:0> = 10: All outputs forced to 1
TP<1:0> = 11: Each output bit toggles between 0 and
1. There is no ensured relationship between the bits
See Note 2
1
1
1
1
PDN
0
0
0
0
0
0
0
0
0
0
0
PDN = 0 : Normal mode of operation, PDN = 1 :
Device is put in power down (low current) mode
(1)All register contents default to zero on reset.
(2)The patterns given are applicable to the straight offset binary output format. If 2’s complement output format is selected, the test mode outputs
will be the 2’s complement equivalent of these patterns.
Table 3. DATA FORMAT SELECT (DFS TABLE)
DFS-PIN VOLTAGE (VDFS)
DATA FORMAT
CLOCK OUTPUT POLARITY
V
DFS
2
12
AV
DD
Straight Binary
Data valid on rising edge
4
12
AV
DD
V
DFS
5
12
AV
DD
2’s Complement
Data valid on rising edge
7
12
AV
DD
V
DFS
8
12
AV
DD
Straight Binary
Data valid on falling edge
V
DFS
10
12
AV
DD
2’s Complement
Data valid on falling edge
相關PDF資料
PDF描述
ADS5521 14-Bit, 80MSPS Analog-to-Digital Converter
ADS5522 14-Bit, 80MSPS Analog-to-Digital Converter
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ADS5542 14-Bit, 80MSPS Analog-to-Digital Converter
ADS5520 14-Bit, 80MSPS Analog-to-Digital Converter
相關代理商/技術參數(shù)
參數(shù)描述
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