Datasheet

AD9954
Rev. B | Page 38 of 40
5
4
3
2
1
VCCGND
DVDD
DVDD_I/O
AVDD
6 5 4 3 2 7 8 9
11
1
15 16 17 18 19
1D
74LVC574A74LVC574A74LVC574A
74LVC14A74LVC14A
U12U12
8D
6 5 4 3 2 7 8 9
1D 8D
1D 8D
C1
EN
W2
U9
11
1
C1
EN U10
11
1
C1
EN U11
14 13 12
15 16 17 18 19 14 13 12
15 16 17 18 19 14 13 12
5 6 7 8 9 4 3 2 1 28 29 30 31 32 27 33 34 35 36 26 25 20 21 22 23 24
10 11 12 13 16 17 18 14 15 19
A3 A4 A5 A6 A7 A2 A1 A0 C0
28 29 30
C2 B3
27 33 34 35
C3
26 25 20 21 22 23 24
B6 B7 B5 B4
16 17 18
C1
15 19
6 5 4 3 2
65
4321
7 8 9
PS1_DUT2 OSK_DUT1 OSK_DUT2 FUD_DUT1 FUD_DUT2 PS0_DUT2 PS1_DUT1 PS0_DUT1
PWRDWNCTRL_DUT2 CLKMODESEL_DUT1 CLKMODESEL_DUT2 RESET_DUT1 RESET_DUT2 PWRDWNCTRL_DUT1 I/O_SYNC_DUT2 I/O_SYNC_DUT1
CSB_DUT2 REF_CLK CSB_DUT1 SCLK SDI
VCC : 20 GND : 10
VCC GND
VCC : 20 GND : 10
VCC : 20 GND : 10
TB5
U3
C68 0.1µF
C69 0.1µF
C70 0.1µF
C71 0.1µF
C72 0.1µF
GND
VCC
C26 10µF
GND
DVDD_I/O
C28 10µF
SCLK1
GND
VCC
C25 10µF
GND
AVDD
C27 10µF
GND
DVDD
J15
R32
0Ω
R36
10kΩ
R37 10kΩ
DIGITAL LOGIC
REF CLK
74LVC14A
U12
8
VCC
GND
CLOCK F CLOCK A CLOCK D
VCC SCLK1
VCC
9
74LVC14A
U12
1011
74LVC14A
C36CRPX
U12
U4
3
1
2
SDI
SDIO SDO
RB_ENABLE
74LVC125A
U6
9
10
8
74LVC125A
U6
5
4
6
74LVC125A
U6
R35 10kΩ
VCC
R34
10kΩ
03374-035
Figure 37. Evaluation Board Interface Logic