XRD64L42 Datasheet, PDF (12/16 Pages) Exar Corporation – Dual 10-Bit 40MSPS CMOS ADC

VIN A
0
AGND
VIN B
0
AGND
6
1
2
4
3
Transf orm er
6
1
2
4
3
Transf orm er
Note: VRHF=1.25[(10K/10K)+1]=2.5V
0.1uF
10K
2uF
0.2uF
10K
22
AGND
22
50
22
22
10pF 10pF
0.1uF
AGND
+3.0V
50
10pF 10pF
AGND
+3.0V
Note: bypass capacitors for pins 13, 24, 39, 41, 52, 61, 62
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
1
2
VBG
VFBK
3
4
VR H F
VR H F
5
6
VR LF
VR LF
58
59
VIN A+
VIN A-
D A0
34
35
D A1
D A2
D A3
D A4
36
37
38
43
DA5 ₄₄
D A6
D A7
D A8
D A9
45
46
47
48
OTR A
49 _{VC MO}
56
55
VIN B+
D B0
D B1
D B2
20
21
22
26
VIN B-
XRD64L42
D B3
D B4
D B5
D B6
D B7
27
28
29
30
31
52
61
62
AVD D
AVD D
AVD D
D B8
D B9
OTR B
32
33
18
13
41
D VD D
D VD D
C KIN
SY NCO
PD
D IF F
19
12
15
17
TR I_A ₁₄
24
39
D OVD D
D OVD D
TR I_B
AGND
AGND
7
8
9
10
11
25
D GN D
D GN D
AGND
AGND
AGND
16
51
53
42
50
D GN D
D GN D
AGND
AGND
54
57
D GN D
23
40
D OGN D
D OGN D
AGND
AGND
AGND
AGND
60
63
64
D A0
D A1
D A2
D A3
D A4
D A5
D A6
D A7
D A8
D A9
OTR A
D B0
D B1
D B2
D B3
D B4
D B5
D B6
D B7
D B8
D B9
OTR B
AGND
AGND
AGND
+3.0V
Note: bypass capacitors for pins 13, 24, 39, 41, 52, 61, 62
0.01uF 0.01uF 0.01uF 0.01uF 0.01uF 0.01uF 0.01uF
AGND
D A[9:0], OTR A
D B[9:0], OTR B
C KIN
SY NCO
D IF F
Figure 7. Typical Application Circuit for the XRD64L42 Operating in Differential Mode