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| 型号： | AD7877ACBZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 31/45页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR TOUCH SCREEN 25-WLCSP |
| 标准包装： | 10,000 |
| 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： | 可供 |
| 数据接口： | 串行，SPI? |
| 数据速率/采样率 (SPS，BPS)： | 125k |
| 电压基准： | 外部，内部 |
| 电源电压： | 2.7 V ~ 5.25 V |
| 电流 - 电源： | 1µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 25-UFBGA，WLCSP |
| 供应商设备封装： | 25-WLCSP |
| 包装： | 带卷 (TR) |
| 配用： | EVAL-AD7877EBZ-ND - BOARD EVALUATION FOR AD7877 |
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AD7877
Data Sheet
Rev. D | Page 36 of 44
Register Name: Control Register 2
Write Address: 0010
Read Address:
00010
Default Value:
0x000
Type:
Read/write
Table 17.
Bit
Name
Read/Write
Description
0
TMR0
R/W
LSB of conversion interval timer
1
TMR1
R/W
MSB of conversion interval timer
00 = convert only once
01 = every 1024 clock periods (512 s)
10 = every 2048 clock periods (1.024 ms)
11 = every 16,384 clock periods (8.19 ms)
2
REF
R/W
Selects internal or external reference
0 = internal reference
1 = external reference
3
POL
R/W
Indicates polarity of signal on STOPACQ pin
0 = active low
1 = active high
4
FCD0
R/W
LSB of first conversion delay
5
FCD1
R/W
MSB of first conversion delay
This delay occurs before the first conversion after powering up the ADC, before converting the X and Y
coordinate channels to allow settling, and after the last conversion to allow PENIRQ precharge
00 = 1 clock period delay (500 ns)
01 = 256 clock periods delay (128 s)
10 = 2048 clock periods delay (1.024 ms)
11 = 16,384 clock periods delay (8.19 ms)
6
PM0
R/W
LSB of ADC power management code
7
PM1
R/W
MSB of ADC power management code
00 = ADC and reference powered down continuously
For the following codes, regardless of PM bits, the reference is always powered down if the REF bit is 1:
01 = ADC and reference powered down when not converting
10 = ADC and reference powered up continuously (master sequencer does not work if PM = 10)
11 = ADC powered down when not converting, reference powered up
8
ACQ0
R/W
LSB of ADC acquisition time
9
ACQ1
R/W
MSB of ADC acquisition time
00 = 4 clock periods (2 s)
01 = 8 clock periods (4 s)
10 = 16 clock periods (8 s)
11 = 32 clock periods (16 s)
10
AVG0
R/W
LSB of ADC averaging code
11
AVG1
R/W
MSB of ADC averaging code
00 = no averaging (1 conversion per channel)
01 = 4 measurements per channel averaged
10 = 8 measurements per channel averaged
11 = 16 measurements per channel averaged
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7877ACBZ-REEL7 | 功能描述:IC CTRLR TOUCH SCREEN 25-WLCSP 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) |
| AD7877ACP | 制造商:Analog Devices 功能描述:TOUCH SCREEN CNTRLR 32LFCSP - Bulk |
| AD7877ACP-500RL7 | 制造商:Analog Devices 功能描述:TOUCH SCREEN CONTROLLER |
| AD7877ACP-REEL | 制造商:AD 制造商全称:Analog Devices 功能描述:Touch Screen Controller |
| AD7877ACP-REEL7 | 制造商:Analog Devices 功能描述:TOUCH SCREEN CONTROLLER |
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