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參數(shù)資料
| 型號： | TC9402EJD |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 15/28頁 |
| 文件大?。?/td> | 545K |
| 描述： | IC V-FREQ/FREQ-V CONV 14CDIP |
| 標(biāo)準(zhǔn)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(yīng)商設(shè)備封裝： | 14-CERDIP |
| 包裝： | 管件 |
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?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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