参数资料
型号: AD9231BCPZRL7-40
厂商: Analog Devices Inc
文件页数: 2/36页
文件大小: 0K
描述: IC ADC 12BIT 40MSPS 64LFCSP
标准包装: 750
位数: 12
采样率(每秒): 40M
数据接口: 串行,SPI?
转换器数目: 2
功率耗散(最大): 103mW
电压电源: 模拟和数字
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-VFQFN 裸露焊盘,CSP
供应商设备封装: 64-LFCSP-VQ(9x9)
包装: 带卷 (TR)
输入数目和类型: 4 个单端,单极;2 个差分,单极
AD9231
Rev. A | Page 10 of 36
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
PIN 1
INDICATOR
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
D8B
D9B
DR
VD
D
D10B
(M
SB
)D1
1B
OR
B
DCO
B
DCO
A
NC
DR
VD
D
NC
(LSB
)D
0A
D1
A
D2
A
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
AV
D
AV
D
VI
N
+
B
VI
N
–B
AV
D
AV
D
RB
IA
S
VC
M
SE
N
SE
VR
E
F
AV
D
AV
D
VI
N
A
VI
N
+
A
AV
D
AV
D
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CLK+
CLK–
SYNC
NC
(LSB) D0B
D1B
DRVDD
D2B
D3B
D4B
D5B
D6B
D7B
NOTES
1. NC = NO CONNECT.
2. THE EXPOSED PADDLE MUST BE SOLDERED TO THE PCB GROUND TO
ENSURE PROPER HEAT DISSIPATION, NOISE, AND MECHANICAL
STRENGTH BENEFITS.
PDWN
OEB
CSB
SCLK/DFS
SDIO/DCS
ORA
D11A (MSB)
D10A
D9A
D8A
D7A
DRVDD
D6A
D5A
D4A
D3A
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
AD9231
TOP VIEW
(Not to Scale)
08
12
1-
0
05
Figure 5. Pin Configuration
Table 8. Pin Function Description
Pin No.
Mnemonic
Description
0
GND
Exposed paddle is the only ground connection for the chip. Must be connected to PCB AGND.
1, 2
CLK+, CLK
Differential Encode Clock. PECL, LVDS, or 1.8 V CMOS inputs.
3
SYNC
Digital Input. SYNC input to clock divider. 30 kΩ internal pull-down.
4, 5, 6, 7, 25, 26, 27, 29
NC
Do Not Connect.
8 to 9, 11 to 18, 20, 21
D0B to D11B
Channel B Digital Outputs. D11B = MSB.
10, 19, 28, 37
DRVDD
Digital Output Driver Supply (1.8 V to 3.3 V).
22
ORB
Channel B Out-of-Range Digital Output.
23
DCOB
Channel B Data Clock Digital Output.
24
DCOA
Channel A Data Clock Digital Output.
30 to 36, 38 to 42
D0A to D11A
Channel A Digital Outputs. D11A = MSB.
43
ORA
Channel A Out-of-Range Digital Output.
44
SDIO/DCS
SPI Data Input/Output (SDIO). Bidirectional SPI Data I/O in SPI mode. 30 kΩ internal pull-
down in SPI mode.
Duty Cycle Stabilizer (DCS). Static enable input for duty cycle stabilizer in non-SPI mode.
30 kΩ internal pull-up in non-SPI (DCS) mode.
45
SCLK/DFS
SPI Clock (SCLK) Input in SPI mode. 30 kΩ internal pull-down.
Data Format Select (DFS). Static control of data output format in non-SPI mode. 30 kΩ internal
pull-down.
DFS high = twos complement output.
DFS low = offset binary output.
46
CSB
SPI Chip Select. Active low enable; 30 kΩ internal pull-up.
47
OEB
Digital Input. Enable Channel A and Channel B digital outputs if low, tristate outputs if high.
30 kΩ internal pull-down.
48
PDWN
Digital Input. 30 kΩ internal pull-down.
PDWN high = power-down device.
PDWN low = run device, normal operation.
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