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CAP1128-1-BP-TR 参数 Datasheet PDF下载

CAP1128-1-BP-TR图片预览
型号: CAP1128-1-BP-TR
PDF下载: 下载PDF文件 查看货源
内容描述: [LED Driver]
分类和应用: 驱动接口集成电路
文件页数/大小: 88 页 / 585 K
品牌: SMSC [ SMSC CORPORATION ]
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8 Channel Capacitive Touch Sensor with 2 LED Drivers  
Datasheet  
Table 5.16 M_PRESS Bit Decode  
M_PRESS[3:0]  
3
2
1
0
M_PRESS SETTINGS  
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
35ms  
70ms  
105ms  
140ms  
175ms  
210ms  
245ms  
280ms (default)  
315ms  
350ms  
385ms  
420ms  
455ms  
490ms  
525ms  
560ms  
5.10  
Averaging and Sampling Configuration Register  
Table 5.17 Averaging and Sampling Configuration Register  
ADDR  
R/W  
REGISTER  
B7  
B6  
B5  
B4  
B3  
B2  
B1  
B0  
DEFAULT  
Averaging and  
Sampling  
Config  
CYCLE_TIME  
[1:0]  
24h  
R/W  
AVG[2:0]  
SAMP_TIME[1:0]  
39h  
The Averaging and Sampling Configuration register controls the number of samples taken and the total  
sensor input cycle time for all active sensor inputs while the device is functioning in Active state.  
Bits 6 - 4 - AVG[2:0] - Determines the number of samples that are taken for all active channels during  
the sensor cycle as shown in Table 5.18. All samples are taken consecutively on the same channel  
before the next channel is sampled and the result is averaged over the number of samples measured  
before updating the measured results.  
For example, if CS1, CS2, and CS3 are sampled during the sensor cycle, and the AVG[2:0] bits are  
set to take 4 samples per channel, then the full sensor cycle will be: CS1, CS1, CS1, CS1, CS2, CS2,  
CS2, CS2, CS3, CS3, CS3, CS3.  
SMSC CAP1128  
Revision 1.32 (01-05-12)  
DATA5S1HEET