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參數(shù)資料
| 型號： | ICM7216B |
| 廠商： | Intersil Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | 8-Digit, Multi-Function, Frequency Counters/Timers |
| 中文描述： | 8位數(shù)字，多功能，頻率計(jì)數(shù)器/定時(shí)器 |
| 文件頁數(shù)： | 12/18頁 |
| 文件大小： | 642K |
| 代理商： | ICM7216B |
12
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
accuracy is obtained with high frequency inputs and in
mode maximum accuracy is obtained with low frequency
inputs (as can be seen in Figure 11). In
mode the maximum
period
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
be more accurately obtained by averaging over more cycles of
INPUT B as shown in Figure 13.
measurement can
FIGURE 11. MAXIMUM ACCURACY OF FREQUENCY AND
PERIOD MEASUREMENTS DUE TO LIMITATIONS
OF QUANTIZATION ERRORS
FIGURE 12. MAXIMUM ACCURACY OF TIME INTERVAL
MEASUREMENT DUE TO LIMITATIONS OF
QUANTIZATION ERRORS
FIGURE 13. MAXIMUM ACCURACY FOR FREQUENCY RATIO MEASUREMENT DUE TO LIMITATION OF QUANTIZATION ERRORS
FREQUENCY MEASURE
0
2
4
8
1
10
10
3
10
7
FREQUENCY (Hz)
M
6
0.01s
0.1s
S
10
5
10s
1s
PERIOD MEASURE
f
OSC
= 10MHz
1 CYCLE
10 CYCLES
10
CYCLES
10
3
CYCLES
MAXIMUM TIME INTERVAL
FOR 10
INTERVALS
MAXIMUM TIME
INTERVAL FOR
10
INTERVALS
MAXIMUM TIME INTERVAL
FOR 10 INTERVALS
10
3
TIME INTERVAL (
μ
s)
10
4
10
5
10
6
10
7
10
8
10
2
10
1
0
1
2
3
4
5
6
7
8
M
S
1 CYCLE
10 CYCLES
10
2
CYCLES
10
3
CYCLES
RANGE
10
3
10
4
f
A
/f
B
10
5
10
6
10
7
10
8
10
2
10
1
0
1
2
3
4
5
6
7
8
M
S
ICM7216B
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICM7216B_04 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:8-Digit, Multi-Function, Frequency Counters/Timers |
| ICM7216BIJI | 制造商:HAR 功能描述:7216 HAR'86 13/TUBE CERAMIC |
| ICM7216BIPI | 制造商:Rochester Electronics LLC 功能描述:DISPLAY 8 DIGIT FREQ COUNTER 28PDIP IND - Bulk 制造商:Intersil Corporation 功能描述: |
| ICM7216BIPI WAF | 制造商:Intersil Corporation 功能描述: |
| ICM7216BLPL | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:8-Digit, Multi-Function, Frequency Counters/Timers |
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