AD9742 Analog Devices, AD9742 Datasheet - Page 19

• Manufacturer Part Number: AD9742
• Manufacturer: Analog Devices

Specifications of AD9742

• Resolution (bits): 12bit
• Dac Update Rate: 210MSPS
• Dac Settling Time: 11ns
• Max Pos Supply (v): +3.6V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: Par

EVALUATION BOARD
GENERAL DESCRIPTION
The TxDAC family evaluation boards allow for easy setup and
testing of any TxDAC product in the SOIC and LFCSP pack-
ages. Careful attention to layout and circuit design, combined
with a prototyping area, allows the user to evaluate the AD9742
easily and effectively in any application where high resolution,
high speed conversion is required.
This board allows the user the flexibility to operate the AD9742
in various configurations. Possible output configurations
include transformer coupled, resistor terminated, and single and
differential outputs. The digital inputs are designed to be driven
from various word generators, with the on-board option to add
a resistor network for proper load termination. Provisions are
also made to operate the AD9742 with either the internal or
external reference or to exercise the power-down feature.
TB1 1
TB1 2
TB1 3
TB1 4
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
4
2
6
8
RIBBON
J1
C7
0.1µF
C9
0.1µF
1
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
3
5
7
9
L2
L3
BLK
BLK
BEAD
BEAD
TP4
TP6
JP3
+
+
C4
10µF
25V
C5
10µF
25V
RED
RED
CKEXTX
DB13X
DB12X
DB11X
DB10X
DB9X
DB8X
DB7X
DB6X
DB5X
DB4X
DB3X
DB2X
DB1X
DB0X
TP2
TP5
Figure 38. SOIC Evaluation Board—Power Supply and Digital Inputs
C6
0.1µF
C8
0.1µF
DVDD
AVDD
CKEXTX
BLK
BLK
DB13X
DB12X
DB11X
DB10X
DB9X
DB8X
DB7X
DB6X
DB5X
DB4X
DB3X
DB2X
DB1X
DB0X
TP7
TP10
BLK
BLK
Rev. B | Page 19 of 32
TP8
TP9
OPT
OPT
RP5
RP6
1 RP3
2 RP3
3 RP3
4 RP3
5 RP3
6 RP3
7 RP3
8 RP3
1 RP4
2 RP4
3 RP4
4 RP4
5 RP4
6 RP4
7 RP4
8 RP4
22Ω
22Ω
22Ω
22Ω
22Ω
22Ω
22Ω
22Ω
22Ω
22Ω
22Ω
22Ω
22Ω
22Ω
22Ω
22Ω
16
15
14
13
12
11
10
9
16
15
14
13
12
11
10
9
OPT
OPT
RP1
RP2
AD9742
DB13
DB12
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
CKEXT