參數(shù)資料
型號(hào)： AD9042STPCB
廠商： Analog Devices, Inc.
英文描述： 12-Bit, 41 MSPS Monolithic A/D Converter
中文描述： 12位，41 MSPS的單片機(jī)的A / D轉(zhuǎn)換器
文件頁(yè)數(shù)： 14/24頁(yè)
文件大?。?/td> 488K
代理商： AD9042STPCB
AD9042
–14–
REV. A
transformer, a sine wave could have been used; however, note
that U5 requires T T L levels to function properly.
AD9042 output data is latched using 74ACT 574 (U3, U4)
latches following 499 ohm series resistors. T he resistors limit
the current that would otherwise flow due to the digital output
slew rate. T he resistor value was chosen to represent a time
constant of ~25% of the data rate at 40 MHz. T his reduces slew
rate while not appreciably distorting the data waveform. Data is
latched in a pipeline configuration; a rising edge generates the
new AD9042 data sample, latches the previous data at the
converter output, and strobes the external data register over J3.
Power and ground must be applied to J3 to power the digital
logic section of the evaluation board.
NC = NO CONNECT
14
13
12
11
10
9
8
1
2
3
4
7
6
5
17
16
15
20
19
18
28
27
26
25
24
23
22
21
GND
D8
D9
D10
(MSB) D11
DV
CC
ENCODE
D5
D6
D7
ENCODE
AIN
V
OFFSET
V
REF
D2
D3
D4
AV
CC
GND
AV
CC
D1
NC
NC
(LSB) D0
GND
GND
GND
GND
U2
AD9042
GND
GND
GND
GND
GND
+5V
GND
+5VA
+5VA
R2
499
2
9
8
7
6
3
4
5
12
13
14
15
16
17
18
19
R3
499
R4
499
R5
499
R6
499
R7
499
U3
74ACT574
8D
7D
5D
1D
CK
4D
6D
3D
2D
5Q
6Q
7Q
8Q
2Q
3Q
4Q
1Q
OE
B06
B07
B08
B09
B10
B11
GND
GND
3
2
1
4
6
T1
T1–1T
R15
100
U1
K1115
14
7
8
V
CC
V
EE
C14
0.1μF
+5VA
1
2
3
U5
74AS00
5
6
U5
74AS00
4
BUFLAT
BNC
J1
BNC
J2
R1
60.4
C2
0.1μF
R14
49.9
C3
0.1μF
11
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
+5V
B11
B10
B09
B08
B07
B06
B05
B04
B03
B02
B01
B00
GND
GND
GND
GND
GND
2
9
8
7
6
3
4
5
12
13
14
15
16
17
18
19
U4
74ACT574
8D
7D
5D
1D
CK
4D
6D
3D
2D
5Q
6Q
7Q
8Q
2Q
3Q
4Q
1Q
OE
B00
B01
B02
B03
B04
B05
GND
GND
11
1
OUT
BUFLAT
R8
499
R9
499
R10
499
R11
499
R12
499
R13
499
H40DM
J3
+5V
C6
10μF
+
C7
0.1μF
C11
0.1μF
C12
0.1μF
C13
0.1μF
C15
0.1μF
C16
0.1μF
+5VA
C4
10μF
+
C8
0.1μF
C9
0.1μF
C17
0.1μF
Figure 37. AD9042D/PCB Schematic
T able I. AD9042D/PCB Bill of Material
Item
Quantity
Reference
Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2
10
2
1
2
1
12
1
1
1
1
1
2
1
+5VA, GND
C2–C3, C7–C9, C11–C17
C4, C6
J3
J1, J2
R1
R2–R13
R14
R15
T 1
U1
U2
U3, U4
U5
Banana Jack
Ceramic Chip Capacitor 0805, 0.1
μ
F
T antalum Chip Capacitor 10
μ
F
40-Pin Double Row Male Header
BNC Coaxial PCB Connector
Surface Mount Resistor 1206, 60.4 ohms
Surface Mount Resistor 1206, 499 ohms
Surface Mount Resistor 1206, 49.9 ohms
Surface Mount Resistor 1206, 100 ohms
Surface Mount T ransformer Mini-Circuits T 1–1T
40.96 MHz Clock Oscillator
AD9042AD 12-Bit–41 MSPS ADC Converter
74ACT 574 Octal Latch
74AS00 Quad T wo Input NAND Gate
相關(guān)PDF資料
PDF描述
AD9042AD 12-Bit, 41 MSPS Monolithic A/D Converter
AD9042AST 12-Bit, 41 MSPS Monolithic A/D Converter
AD9042CHIPS 12-Bit, 41 MSPS Monolithic A/D Converter
AD9042 12-Bit, 41 MSPS Monolithic A/D Converter(41MSPS,單片12位A/D轉(zhuǎn)換器)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9048 制造商:AD 制造商全稱:Analog Devices 功能描述:Monolithic 8-Bit Video A/D Converter
AD9048JJ 制造商:Analog Devices 功能描述: 制造商:Analog Devices 功能描述:Analog Digital Converter, Single, 8 Bit, 28 Pin, PLCC
AD9048JN 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 8-Bit
AD9048JP 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 8-Bit
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