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| 型号： | AD7879-1WARUZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 17/41页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT CTRLR TOUCH 16TSSOP |
| 标准包装： | 2,500 |
| 类型： | 电阻 |
| 触摸面板接口： | 4 线 |
| 输入数/键： | 1 TSC |
| 分辨率（位）： | 12 b |
| 评估套件： | * |
| 数据接口： | I²C，串行 |
| 数据速率/采样率 (SPS，BPS)： | 105k |
| 电压基准： | 内部 |
| 电源电压： | 1.6 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
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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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相关代理商/技术参数 |
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| AD7879-1WARUZ-RL7 | 功能描述:IC ADC 12BIT CTRLR TOUCH 16TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 触摸屏控制器 系列:- 标准包装:96 系列:- 类型:- 触摸面板接口:- 输入数/键:- 分辨率（位）:- 评估套件:* 数据接口:- 数据速率/采样率 (SPS，BPS):- 电压基准:- 电源电压:- 电流 - 电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| AD7879ACBZ-500R7 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Voltage Controller for Touch Screens |
| AD7879ACBZ-RL | 制造商:Analog Devices 功能描述: |
| AD7879ACPZ-500R7 | 制造商:Analog Devices 功能描述:TOUCH SCREEN CONTROLLER - Tape and Reel 制造商:Analog Devices 功能描述:ADC 12BIT 3.6V 105KSPS SPI 16LFCSP 制造商:Analog Devices 功能描述:ADC, 12BIT, 3.6V, 105KSPS, SPI, 16LFCSP 制造商:Analog Devices 功能描述:ADC, 12BIT, 3.6V, 105KSPS, SPI, 16LFCSP; Resolution (Bits):12bit; Sampling Rate:105kSPS; Digital IC Case Style:LFCSP; No. of Pins:16; Input Channel Type:Single Ended; Data Interface:SPI; Operating Temperature Min:-40C; Operating ;RoHS Compliant: Yes |
| AD7879ACPZ-RL | 功能描述:IC ADC 12BIT CTLR TOUCH 16LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 触摸屏控制器 系列:- 标准包装:96 系列:- 类型:- 触摸面板接口:- 输入数/键:- 分辨率（位）:- 评估套件:* 数据接口:- 数据速率/采样率 (SPS，BPS):- 电压基准:- 电源电压:- 电流 - 电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
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