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AD9745 Arkusz danych(PDF) 9 Page - Analog Devices

Numer części AD9745
Szczegółowy opis  Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
Logo AD - Analog Devices

AD9745 Arkusz danych(HTML) 9 Page - Analog Devices

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AD9741/AD9743/AD9745/AD9746/AD9747
Rev. 0 | Page 9 of 28
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CVDD18
CVSS
CLKP
CLKN
CVSS
CVDD18
DVSS
DVDD18
P1D7
P1D6
P1D5
P1D4
P1D3
P1D2
P1D1
P1D0
17
NC
18
NC
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
FSADJ
RESET
CSB
SCLK
SDIO
SDO
DVSS
DVDD18
NC
NC
NC
NC
NC
NC
NC
NC
P2D0
P2D1
NC = NO CONNECT
PIN 1
INDICATOR
AD9741
(TOP VIEW)
Figure 2. AD9741 Pin Configuration
Table 8. AD 9741 Pin Function Descriptions
Pin No.
Mnemonic
Description
1, 6
CVDD18
Clock Supply Voltage (1.8 V).
2, 5
CVSS
Clock Supply Common (0 V).
3
CLKP
Differential DAC Clock Input.
4
CLKN
Complementary Differential DAC Clock Input.
7, 28, 48
DVSS
Digital Supply Common (0 V).
8, 47
DVDD18
Digital Core Supply Voltage (1.8 V).
9 to 16
P1D<7:0>
Port 1 Data Bit Inputs.
17 to 24, 26, 30, 39 to 46
NC
No Connect.
25
DCO
Data Clock Output. Use to clock data source.
27
DVDD33
Digital I/O Supply Voltage (3.3 V).
29
IQSEL
I/Q Framing Signal for Single-Port Mode Operation.
31 to 38
P2D<7:0>
Port 2 Data Bit Inputs.
49
SDO
Serial Peripheral Interface Data Output.
50
SDIO
Serial Peripheral Interface Data Input and Optional Data Output.
51
SCLK
Serial Peripheral Interface Clock Input.
52
CSB
Serial Peripheral Interface Chip Select Input. Active low.
53
RESET
Hardware Reset. Active high.
54
FSADJ
Full-Scale Current Output Adjust. Connect a 10 kΩ resistor to AVSS.
55
REFIO
Reference Input/Output. Connect a 0.1 μF capacitor to AVSS.
56, 57, 71, 72
AVDD33
Analog Supply Voltage (3.3 V).
58, 61, 64, 67, 70
AVSS
Analog Supply Common (0 V).
59
IOUT2P
DAC2 Current Output True. Sources full-scale current when input data bits are all 1.
60
IOUT2N
DAC2 Current Output Complement. Sources full-scale current when data bits are all 0.
62
AUX2P
Auxiliary DAC2 Default Current Output Pin.
63
AUX2N
Auxiliary DAC2 Optional Output Pin. Enable through SPI.
65
AUX1N
Auxiliary DAC1 Optional Output Pin. Enable through SPI.
66
AUX1P
Auxiliary DAC1 Default Current Output Pin.
68
IOUT1N
Complementary DAC1 Current Output. Sources full-scale current when data bits are all 0.
69
IOUT1P
DAC1 Current Output. Sources full-scale current when data bits are all 1.
EPAD
AVSS
Exposed Thermal Pad. Must be soldered to copper pour on top surface of PCB for mechanical
stability and must be electrically tied to low impedance GND plane for low noise performance.


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