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參數資料
| 型號： | EVAL-AD7879-1EBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 17/41頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVALUATION FOR AD7879-1 |
| 標準包裝： | 1 |
| 主要目的： | 接口，觸摸屏控制器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | AD7879-1 |
| 主要屬性： | 4 線電阻式觸控屏控制器，I²C 和 SPI 接口 |
| 次要屬性： | 圖形用戶界面，USB 接口 |
| 已供物品： | 板，線纜，CD，觸控屏 |
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AD7879/AD7889
Rev. C | Page 23 of 40
Table 13. Control Register 2
Address
Bit Name
Data Bit
Description
Default
Value
0x02
PM[1:0]
[15:14]
ADC power management.
0x4040
00 = full shutdown; the ADC, oscillator, bias, and temperature sensor are all powered down.
01 = analog blocks to be powered down depend on the ADC mode.
If ADC mode is master mode, the ADC, oscillator, bias, and temperature sensor are powered
down and must wake up when the user touches the screen.
If ADC mode is slave mode, the ADC and temperature sensor are powered down when not
being used. They wake up automatically when required. The oscillator and bias are powered
up because they are needed to measure time. This also applies to the single-conversion mode.
10 = ADC, bias, and oscillator are powered up continuously, irrespective of ADC mode.
11 = same as 01.
GPIO EN
13
GPIO enable.
0 = AUX/VBAT channel active.
1 = GPIO enabled on AUX/VBAT/GPIO pin.
GPIO DAT
12
GPIO data bit.
GPIO DIR
11
GPIO direction.
0 = output.
1 = input.
GPIO POL
10
GPIO polarity.
0 = GPIO pin is active low.
1 = GPIO pin is active high.
SER/DFR
9
Selects normal (single-ended) or ratiometric (differential) conversion.
0 = ratiometric (differential).
1 = normal (single-ended).
AVG[1:0]
[8:7]
ADC averaging.
00 = 2 middle values averaged (one measurement when median filter is disabled).
01 = 4 middle values averaged.
10 = 8 middle values averaged.
11 = 16 values averaged.
MED[1:0]
[6:5]
Median filter size.
00 = median filter disabled.
01 = 4 measurements.
10 = 8 measurements.
11 = 16 measurements.
SW/RST
4
Software reset; digital logic is reset when this bit is set.
FCD[3:0]
[3:0]
ADC first conversion delay.1
Starts at 128 s (default) and continues to 4.096 ms in steps of 128 s (see Table 22).
1
This delay occurs before conversion of the X and Y coordinate channels (including Z1 and Z2) to allow for screen settling and before the first conversion to allow the
ADC to power up.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| EVAL-AD7879EBZ | 功能描述:BOARD EVALUATION FOR AD7879 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 標準包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
| EVAL-AD7887CB | 制造商:Analog Devices 功能描述:EVAL BD FOR 2.7 V TO 5.25 V, MICROPWR, 2CH, 125 KSPS, 12-BIT - Bulk |
| EVAL-AD7887CB4 | 制造商:AD 制造商全稱:Analog Devices 功能描述:2.7 V to 5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead MSOP |
| EVAL-AD7887CBZ | 功能描述:BOARD EVAL FOR AD7887 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數轉換器 (ADC) 系列:* 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數量:1 位數:12 采樣率（每秒）:94.4k 數據接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標準）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| EVAL-AD7888CB | 制造商:Analog Devices 功能描述:EVAL KIT FOR 2.7 V TO 5.25 V, MICROPWR, 8CH, 125 KSPS, 12-BI - Bulk |
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