Datasheet

AD9709
Rev. B | Page 24 of 32
EVALUATION BOARD
GENERAL DESCRIPTION
The AD9709-EB is an evaluation board for the AD9709 8-bit
dual DAC. Careful attention to layout and circuit design,
combined with a prototyping area, allow the user to easily and
effectively evaluate the AD9709 in any application where high
resolution, high speed conversion is required.
This board allows the user flexibility to operate the AD9709 in
various configurations. Possible output configurations include
transformer coupled, resistor terminated, and single-ended and
differential outputs. The digital inputs can be used in dual port
or interleaved mode and are designed to be driven from various
word generators, with the on-board option to add a resistor
network for proper load termination. When operating the
AD9709, best performance is obtained when running the digital
supply (DVDD1/DVDD2) at 3.3 V and the analog supply
(AVDD) at 5 V.
SCHEMATICS
00606-146
L1
BEADBEAD
VAL
VOLT
DCASE
VAL
VOLT
DCASE
DGND
C10C9
DVDD AVDD
2
TB1
1
TB1
BLK
BLKBLKBLK
RED
RED
BLKBLKBLK
BLK
AVDDIN
AGND
L2
DVDDIN 3
TB1
4
TB1
R5
R2
R1
RCO M
R3
R4
R6
R7
R8
R9
R2
R1
RCO M
R3
R4
R5
R6
R7
R8
R9
R2
R1
RCO M
R3
R4
R5
R6
R7
R8
R9
R2
R1
RCO M
R3
R4
R5
R6
R7
R8
R9
22
22 22
22
1
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
22
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
RP16
RP10RP15
RP9
INP1
INP31
INP32
INP33
INP34
INCK2
INP36
INP35
INP4
INP3
INP2
INP8
INP7
INP6
INP5
INP26
INP25
INP24
INP23
INP30
INP29
INP28
INP27
INP12
INP11
INP10
INP9
INCK1
INP14
INP13
Figure 46. Power Decoupling and Clocks on AD9709 Evaluation Board (1)