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參數資料
| 型號： | AD7899 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Evaluation Board for 5V, 12-Bit, Serial 220kSPS ADC in 8-Pin Package |
| 中文描述： | 評估板為5V，12位，串行220kSPS ADC的8引腳封裝 |
| 文件頁數： | 8/12頁 |
| 文件大小： | 484K |
| 代理商： | AD7899 |
EVAL-AD7899CB
–8–
REV. 0
Figure 4. The Setup Screen
configuration file and click
L oad
. T he Evaluation Board
C ontroller will be reset and the D SP program will be
downloaded. When the download has been completed the
power supply settings indicated in the configuration file are
set and the user may hear some of the relays clicking. T he
pull-down menus items such as number of samples and
sampling frequency will have been set to the default values
specified by the configuration file. T he user is free to change
these at will. Once all the settings had been decided the user
can click
Close
to return to the main form.
T aking Samples
When the user clicks
Sample
the software will instruct the
Evaluation Board Controller to take the required number of
samples at the required frequency from the evaluation board.
T hese samples are then uploaded and displayed. An FFT and
Histogram are also calculated and displayed. If the user clicks
Cont Samp
the software will repeat the process indefinitely
until the user clicks the button again. While the software is
continuously sampling data the other control buttons are
disabled.
Other B uttons
T he
Reset
button will cause the Evaluation Board Controller
to perform a reset function. When this happens the power
supplies are turned off and the program in DSP memory is
lost. T he user should repeat the setup instructions to down-
load another program if required.
T he
Quit
button will exit the software, the program running
on the Evaluation Board Controller is not terminated.
ME NU BAR IT E MS
T he main screen of the Evaluation Board Controller contains
a number of options available as pull-down menu items. T he
functions of these are listed below.
File Menu:
Setup Menu:
Selecting this option displays the Setup Screen
as shown in Figure 3.
Load Raw Data:
Selecting this option allows the user to load
data which had been saved by the software during a previous
session.
Save Raw Data:
Selecting this option allows the user to save
the current set of sample data points. T he data can be
reloaded to the Evaluation Board Controller software at a
later date or can be used by other programs for further
analysis
Save Binary Data:
Selecting this option allows the user to
save the current set of sample data points. T he data is saved
in binary format as a text file. T his method can be useful for
examining code flicker, looking for stuck bits etc.
Save FFT Data:
Selecting this option allows the user to save
the current set of FFT data points. FFT data cannot be
reloaded into the Evaluation Board Controller software but
can be loaded into other software packages for further
analysis.
E xit:
Quits the program.
Printer Port:
T his menu item allows the user to select which printer port
should be used for communication with the Evaluation Board
C ontroller.
LPT 1:
T his option selects 0x378 as the printer port
address. T his is the default option.
LPT 2:
T his option selects 0x278 as the printer port
address.
PRN:
T his option selects 0x3BC as the printer port
address.
Help:
T his menu item gives information about the current revision
of software for the particular evaluation board being used.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7899AR-1 | 功能描述:IC ADC 14BIT 400KSPS 5V 28-SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率（每秒）:300k 數據接口:并聯 轉換器數目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7899AR-1REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 400ksps 14-bit Parallel 28-Pin SOIC W T/R |
| AD7899AR-1REEL7 | 制造商:Analog Devices 功能描述:ADC SGL SAR 400KSPS 14BIT PARALLEL 28SOIC W - Tape and Reel |
| AD7899AR-2 | 功能描述:IC ADC 14BIT 400KSPS 5V 28-SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數:12 采樣率（每秒）:3M 數據接口:- 轉換器數目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數目和類型:- |
| AD7899AR-2REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 400ksps 14-bit Parallel 28-Pin SOIC W T/R |
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