參數(shù)資料
型號(hào): AD9238BSTZRL-20
廠商: Analog Devices Inc
文件頁(yè)數(shù): 15/48頁(yè)
文件大?。?/td> 0K
描述: IC ADC 12BIT DUAL 20MSPS 64LQFP
標(biāo)準(zhǔn)包裝: 2,000
位數(shù): 12
采樣率(每秒): 20M
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 2
功率耗散(最大): 180mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應(yīng)商設(shè)備封裝: 64-LQFP(7x7)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 4 個(gè)單端,單極;2 個(gè)差分,單極
AD9238
Rev. C | Page 22 of 48
Table 8. PCB Jumpers
JP
Description
Normal
Setting
Comment
1
Reference
Out
1 V Reference Mode
2
Reference
In
1 V Reference Mode
3
Reference
Out
1 V Reference Mode
4
Reference
Out
1 V Reference Mode
5
Reference
Out
1 V Reference Mode
6
Shared Reference
Out
7
Shared Reference
Out
8
PDWN B
Out
9
PDWN A
Out
10
Shared Reference
Out
11
Duty Cycle
In
Duty Cycle Restore On
12
Twos Complement
Out
13
Input
In
Using XFMR Input
14
Input
In
Using XFMR Input
15
Input
Out
Using XFMR Input
16
Input
Out
Using XFMR Input
17
AD8138 Supply
A
Using XFMR Input
18
Input
Out
Using XFMR Input
19
Input
Out
20
Input
In
21
Input
In
22
AD8138 Supply
A
23
Mux Select
Out
24
Tie Clocks
In
Using One Signal for Clock
25
Data Clock
A
26
Data Clock
Out
Using One Signal for Clock
27
Mux Select
In
28
OEB_A
Out
29
Mux Select
Out
30
Data Clock
Out
35
OEB_B
Out
Table 9. Reference Jumpers
Reference Mode
JP1
JP2
JP3
JP4
JP5
1 V Internal
Out
In
Out
0.5 V Internal
Out
In
Out
External
In
Out
In
AD9238
EVALUATION BOARD
SINE SOURCES
LOW JITTER
(HP8644)
SINE SOURCE
LOW JITTER
(HP8644)
BAND-PASS
FILTERS
OUTPUT
BUFFERS
INPUT
CIRCUITRY
CLOCK
CIRCUITRY
AD9238
02640-060
REFERENCE MODE
SELECTION/EXTERNAL
REFERENCE/CONTROL
LOGIC
Figure 39. PCB Test Setup
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