AD9857
GND
GND
W8 W10 W9 W7
C1
0.01µF
R2
MC100LEVL16
J1
50V
2
3
7
6
GND
Q
Q
R10 R8
D
D
R12
50Ω
0
0
U6
GND
U10
J7
DVDD
AVDD
GND
R3
50Ω
R1
2000Ω
J6
5
4
8
GND
VCC
GND
CLOCK INPUT
VCC
1
2
3
4
TxENABLE
TB1
VCC
GND
POWER
CONNECTION
W2
RESET
DPD
W11
CIC TEST POINT
W12
J8
PARALLEL PORT
P1
DVDD
GND
U1
74HC574
VCC
AVDD
1
1
20
19
OUT_EN VCC
2
2
C20
0.01µF
R4
1.3kΩ
VCC
D0
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
VCC
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
3
3
4
18
17
16
15
14
13
12
11
D1
D2
D3
D4
D5
D6
D7
GND
4
5
5
U2
SN74HC14
6
6
U3
74HC125
1
2
3
4
5
6
7
14
13
12
11
10
9
7
7
1A
1Y
2A
2Y
3A
VCC
6A
8
8
14
13
12
1
2
EN1 VCC
D1 EN4
RBE
RBE
1
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
W6
D13
D13
D12
D11
D10
D9
DIFF_CLKEN
AGND
AVDD
NC
9
9
6Y
5A
2
3
D12
D11
D10
D9
10
11
12
13
14
10
3
4
CLOCK
Q1
D4
11
10
EN2 Q4
D2 EN3
5Y
GND
GND
5
6
7
4
3Y 4A
GND 4Y
8
9
8
VCC
Q2
D3
5
AGND
PLL_FILTER
AVDD
AGND
NC
GND Q3
6
D8
D8
GND
GND
W1
GND
15
16
17
18
19
20
21
R5
3.9kΩ
7
AD9857
D7
D7
GND
U7
74HC574
U5
VCC
8
DVDD
DVDD
DVDD
DGND
DGND
DGND
D6
GND
9
1
2
20
19
18
17
16
15
14
13
12
11
OUT_EN VCC
W4
10
11
12
13
14
15
16
17
18
19
20
NC
D0
D1
D2
D3
D4
D5
D6
D7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
3
DAC_RSET
DAC_BP
AVDD
AGND
IOUT
R6
3.9kΩ
4
22
23
24
25
26
27
VCC
5
W13
C19
0.01µF
6
GND
D6
D5
D4
D3
D2
D1
D0
7
D5
8
D4
IOUT
9
10
D3
AGND
AVDD
AGND
NC
GND CLOCK
28
29
30
31
32
D2
GND
D1
D0
33
34
35
36
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
AVDD
DVDD
GND
SDIO
SDIO
SYNCIO
PS1
PSO
CS
SCLK
AVDD
C29
10µF
C2
0.1µF
C3
0.1µF
C4
0.1µF
C5
0.1µF
C6
0.1µF
C7
0.1µF
C8
0.1µF
J3
C22
C23
C24
33pF
15pF
5.6pF
GND
TFORMCT
3
2
1
4
5
6
VCC
W3
L1
68nH
L2
L3
J4
W5
100nH 120nH
C30
10µF
C9
0.1µF
C10
0.1µF
C11
0.1µF
C12
0.1µF
C13
0.1µF
J2
C25
C26
C27
C28
22pF
56pF
68pF
47pF
GND
R7
50Ω
R9
50Ω
DVDD
GND
C31
10µF
C14
0.1µF
C15
0.1µF
C16
0.1µF
C17
0.1µF
82.5MHz ELLIPTIC
LOW-PASS FILTER
GND
GND
Figure 37. Schematic of AD9857 Evaluation PCB
Rev. C| Page 37 of 40