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參數(shù)資料
| 型號(hào)： | TC9402EJD |
| 廠商： | TelCom Semiconductor, Inc. |
| 英文描述： | POT 1.0K OHM 6MM CERMET TOP SMD |
| 中文描述： | VOLTAGE-TO-FREQUENCY/FREQUENCY-TO-VOLTAGE變換器 |
| 文件頁數(shù)： | 13/13頁 |
| 文件大?。?/td> | 154K |
| 代理商： | TC9402EJD |
3-299
TELCOM SEMICONDUCTOR, INC.
7
6
5
4
3
1
2
8
VOLTAGE-TO-FREQUENCY/
FREQUENCY-TO-VOLTAGE CONVERTERS
TC9400
TC9401
TC9402
In some cases, however, the TC9400 output must be
zero at power-on without a frequency input. In such cases,
a capacitor connected from pin 11 to V
DD
will usually be
sufficient to pulse the TC9400 and provide a power-on reset
(see Figure 11A). Where predictable power-on operation is
critical, a more complicated circuit, such as Figure 11B, may
be required.
VDD
14
11
1000pF
THRESHOLD
DETECTOR
1k
fIN
VDD
100k
1
μ
F
3
4
8
6
fIN
1
C
2
R
5
B
16
VCC
CLRA
Q
VSS
A
CD4538
(A)
(B)
TC9400
To TC 9400
Figure 11. Power-On Operation/Reset
F/V POWER-ON RESET
In F/V mode, the TC9400 output voltage will occasion-
ally be at its maximum value when power is first applied. This
condition remains until the first pulse is applied to f
IN
. In most
frequency-measurement applications this is not a problem,
because proper operation begins as soon as the frequency
input is applied.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TC9491ACOA | LOW POWER, BANDGAP VOLTAGE REFERENCES |
| TC9491A | LOW POWER, BANDGAP VOLTAGE REFERENCES |
| TC9491ACZM | LOW POWER, BANDGAP VOLTAGE REFERENCES |
| TC9491B | LOW POWER, BANDGAP VOLTAGE REFERENCES |
| TC9491BCOA | LOW POWER, BANDGAP VOLTAGE REFERENCES |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TC9404FN | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:MODULATION SYSTEM DA CONVERTER WITH ANALOG FILTER |
| TC9404FNG | 制造商:Toshiba 功能描述:1Bit Cut Tape |
| TC9409BF | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:SINGLE CHIP KARAOKE LSI |
| TC9411 | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:CD GRAPHICS DECODER |
| TC9411F | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:CD GRAPHICS DECODER |
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