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CAP1006-2-AIA-TR 参数 Datasheet PDF下载

CAP1006-2-AIA-TR图片预览
型号: CAP1006-2-AIA-TR
PDF下载: 下载PDF文件 查看货源
内容描述: 5和6通道电容式触摸传感器 [5 and 6 Channel Capacitive Touch Sensor]
分类和应用: 模拟IC传感器信号电路
文件页数/大小: 53 页 / 736 K
品牌: SMSC [ SMSC CORPORATION ]
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5 and 6 Channel Capacitive Touch Sensor  
Datasheet  
Table 5.31 STBY_AVG Bit Decode  
STBY_AVG[2:0]  
NUMBER OF SAMPLES TAKEN  
PER MEASUREMENT  
2
1
0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
1
2
4
8 (default)  
16  
32  
64  
128  
Bit 2 - STBY SAMP_TIME - Determines the time to take a single sample when the device is in Standby.  
„
„
‘0’ - The sampling time is ~2.56ms.  
‘1’ (default) - The sampling time is ~1.28ms.  
Bits 1 - 0 - STBY_CY_TIME[2:0] - Determines the overall cycle time for all measured channels during  
normal operation as shown in Table 5.17. All measured channels are sampled at the beginning of the  
cycle time. If additional time is remaining, then the device is placed into a lower power state for the  
remaining duration of the cycle.  
Table 5.32 STBY_CY_TIME Bit Decode  
STBY_CY_TIME[1:0]  
1
0
OVERALL CYCLE TIME  
0
0
1
1
0
1
0
1
35ms  
70ms (default)  
105ms  
140ms  
APPLICATION NOTE: The programmed cycle time is only maintained if the total averaging time for all samples is  
less than the programmed cycle. The STBY_AVG[2:0] bits will take priority so that if more  
samples are required than would normally be allowed during the cycle time, the cycle time  
will be extended as necessary to accommodate the number of samples to be measured.  
Revision 1.1 (08-05-09)  
SMSC CAP1005 / CAP1006  
DATA4S4HEET