参数资料
型号: AD9643BCPZ-250
厂商: ANALOG DEVICES INC
元件分类: ADC
英文描述: 2-CH 14-BIT FLASH METHOD ADC, PARALLEL ACCESS, QCC64
封装: 9 X 9 MM, ROHS COMPLIANT, MO-220VMMD-4, LFCSP-64
文件页数: 6/36页
文件大小: 1659K
代理商: AD9643BCPZ-250
AD9643
Rev. A | Page 14 of 36
09
63
6-
00
5
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
B
D8–/
D9–
B
D8
+
/D
9+
DRV
D
B
D10–/
D11
B
D10
+
/D
11+
(M
S
B
)B
D12–/
D13
(M
SB
)B
D
12+/
D
13
+
DCO
DCO
+
(L
S
B
)A
D0
–/
D
1–
(L
S
B
)A
D0+
/D
1+
DRV
D
A
D2–/
D3–
A
D2
+
/D
3+
A
D4–/
D5–
A
D4
+
/D
5+
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
AV
DD
AV
DD
VI
N
+
B
VI
N
–B
AV
DD
AV
DD
DN
C
VC
M
DN
C
DN
C
AV
DD
AV
DD
VI
N
–A
VI
N
+
A
AV
DD
AV
DD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CLK+
CLK–
SYNC
DNC
(LSB) B D0–/D1–
(LSB) B D0+/D1+
DRVDD
B D2–/D3–
B D2+/D3+
B D4–/D5–
B D4+/D5+
B D6–/D7–
B D6+/D7+
NOTES
1. DNC = DO NOT CONNECT. DO NOT CONNECT TO THIS PIN.
2. THE EXPOSED THERMAL PADDLE ON THE BOTTOM OF THE
PACKAGE PROVIDES THE ANALOG GROUND FOR THE PART.
THIS EXPOSED PADDLE MUST BE CONNECTED TO GROUND FOR
PROPER OPERATION.
PDWN
OEB
CSB
SCLK
SDIO
OR+
OR–
A D12+/D13+ (MSB)
A D12–/D13– (MSB)
A D10+/D11+
A D10–/D11–
DRVDD
A D8+/D9+
A D8–/D9–
A D6+/D7+
A D6–/D7–
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
AD9643
CHANNEL
MULTIPLEXED
(EVEN/ODD)
LVDS
TOP VIEW
(Not to Scale)
PIN 1
INDICATOR
Figure 5. LFCSP Channel Multiplexed (Even/Odd) LVDS Pin Configuration (Top View)
Table 9. Pin Function Descriptions for Channel Multiplexed (Even/Odd) LVDS Mode
Pin No.
Mnemonic
Type
Description
ADC Power Supplies
10, 19, 28, 37
DRVDD
Supply
Digital Output Driver Supply (1.8 V Nominal).
49, 50, 53, 54, 59, 60, 63, 64
AVDD
Supply
Analog Power Supply (1.8 V Nominal).
4, 5, 6, 7
DNC
Do Not Connect. Do not connect to this pin.
0
AGND,
Exposed Paddle
Ground
Analog Ground. The exposed thermal paddle on the bottom of the
package provides the analog ground for the part. This exposed
paddle must be connected to ground for proper operation.
ADC Analog
51
VIN+A
Input
Differential Analog Input Pin (+) for Channel A.
52
VINA
Input
Differential Analog Input Pin () for Channel A.
62
VIN+B
Input
Differential Analog Input Pin (+) for Channel B.
61
VINB
Input
Differential Analog Input Pin () for Channel B.
55
DNC
Do Not Connect. Do not connect to this pin.
56
DNC
Do Not Connect. Do not connect to this pin.
58
DNC
Do Not Connect. Do not connect to this pin.
57
VCM
Output
Common-Mode Level Bias Output for Analog Inputs. This pin
should be decoupled to ground using a 0.1 μF capacitor.
1
CLK+
Input
ADC Clock Input—True.
2
CLK
Input
ADC Clock Input—Complement.
Digital Input
3
SYNC
Input
Digital Synchronization Pin. Slave mode only.
Digital Outputs
8
B D0/D1 (LSB)
Output
Channel B LVDS Output Data 0/Data 1—Complement.
9
B D0+/D1+ (LSB)
Output
Channel B LVDS Output Data 0/Data 1—True.
11
B D2/D3
Output
Channel B LVDS Output Data 2/Data 3—Complement.
12
B D2+/D3+
Output
Channel B LVDS Output Data 2/Data 3—True.
13
B D4/D5
Output
Channel B LVDS Output Data 4/Data 5—Complement.
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