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參數資料
型號: TC9402EJD
廠商: Microchip Technology
文件頁數: 15/28頁
文件大小: 545K
描述: IC V-FREQ/FREQ-V CONV 14CDIP
標準包裝: 29
類型: 電壓至頻率和頻率至電壓
頻率 - 最大: 100kHz
全量程: ±100ppm/°C
線性: ±0.25%
安裝類型: 通孔
封裝/外殼: 14-CDIP(0.300",7.62mm)
供應商設備封裝: 14-CERDIP
包裝: 管件
?2007 Microchip Technology Inc.
DS21483D-page 15
TC9400/9401/9402
FIGURE 6-2:    F/V Single Supply F/V Converter.
6.3  Input Buffer
F
OUT
 and F
OUT
/2 are not used in the F/V mode. How-
ever, these outputs may be useful for some applica-
tions, such as a buffer to feed additional circuitry. Then,
F
OUT
 will follow the input frequency waveform, except
that F
OUT
 will go high 3祍 after F
IN
 goes high; F
OUT
/2
will be square wave with a frequency of one-half F
OUT
.
If these outputs are not used, Pins 8, 9 and 10 should be
connected to ground (see Figure6-3 and Figure6-4).
FIGURE 6-3:    F/V Digital Outputs.
Offset
Adjust
10k?/DIV>
.01礔
6.2V
IN914
33k?/DIV>
100k?/DIV>
500k?/DIV>
0.1礔
100k?/DIV>
V+ = 10V to 15V
1
47pF
V
OUT
Frequency
Input
TC9400
6
10k?/DIV>
2
11
1.0
4
14
12
3
5
GND
V
REF
OUT
 
I
IN
Zero
Adjust
V
REF
I
BIAS
Amp Out
V
DD
V
SS
GND
6
7
1.0k?/DIV>
V+
1.0k?/DIV>
0.01礔
.001礔
DET
Note:  The output is referenced to Pin 6, which is at 6.2V (Vz). For frequency meter applications,
a 1mA meter with a series scaling resistor can be placed across Pins 6 and 12.
M?/DIV>
M?/DIV>
0.5ms
 Min
5.0ms
Min
Delay = 3ms
Input
F
OUT
F
OUT
/2
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