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参数资料
| 型号： | ICM7216DIPI |
| 厂商： | Intersil |
| 文件页数： | 12/18页 |
| 文件大小： | 0K |
| 描述： | IC COUNTER/TIMER FREQ 8DIG 28DIP |
| 标准包装： | 78 |
| 系列： | * |
| 其它名称： | 7216DIPI NT5007 |
ICM7216B, ICM7216D
In addition, there is a quantization error inherent in any digital
measurement of ± 1 count. Clearly this error is reduced by
displaying more digits. In the frequency mode the maximum
accuracy is obtained with high frequency inputs and in period
mode maximum accuracy is obtained with low frequency
inputs (as can be seen in Figure 11). In time interval
measurements there can be an error of 1 count per interval.
As a result there is the same inherent accuracy in all ranges
as shown in Figure 12. In frequency ratio measurement can
be more accurately obtained by averaging over more cycles
of INPUT B as shown in Figure 13.
0
2
0.01s
0.1s
FREQUENCY MEASURE
0
1
2
1s
10s
3
MAXIMUM TIME INTERVAL
FOR 10 3 INTERVALS
4
6
1 CYCLE
10 CYCLES
10 2 CYCLES
10 3 CYCLES
4
5
6
MAXIMUM TIME INTERVAL
MAXIMUM TIME
INTERVAL FOR
10 2 INTERVALS
PERIOD MEASURE
7
FOR 10 INTERVALS
8
1
10
f OSC = 10MHz
10 3 10 5
10 7
8
1
10
10 2
10 3
10 4
10 5
10 6
10 7
10 8
FREQUENCY (Hz)
FIGURE 11. MAXIMUM ACCURACY OF FREQUENCY AND
PERIOD MEASUREMENTS DUE TO LIMITATIONS
OF QUANTIZATION ERRORS
TIME INTERVAL ( μ s)
FIGURE 12. MAXIMUM ACCURACY OF TIME INTERVAL
MEASUREMENT DUE TO LIMITATIONS OF
QUANTIZATION ERRORS
0
1
RANGE
2
3
4
5
6
7
1 CYCLE
10 CYCLES
10 2 CYCLES
10 3 CYCLES
8
1
10
10 2
10 3
10 4
10 5
10 6
10 7
10 8
f A /f B
FIGURE 13. MAXIMUM ACCURACY FOR FREQUENCY RATIO MEASUREMENT DUE TO LIMITATION OF QUANTIZATION ERRORS
12
相关PDF资料 |
PDF描述 |
|---|---|
| IKH1003000 | SWITCH DIP 1/2 PITCH |
| IKN0203000 | DIP SWITCH |
| IN421WB-E | FLASHLIGHT SWIVEL HEAD W/4AA |
| INL2AAE | FLASHLIGHT MID-RANGE IND 2AA LED |
| INL2DE | FLASHLIGHT MID-RANGE IND 2D LED |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ICM7216DIPI WAF | 制造商:Intersil Corporation 功能描述: |
| ICM7216DLPL | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:8-Digit, Multi-Function, Frequency Counters/Timers |
| ICM7217 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:4 Digit (LED) Presettable Up/Down Counter |
| ICM7217_01 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:4-Digit LED Display, Programmable Up/Down Counter |
| ICM7217A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
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