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參數(shù)資料
| 型號(hào)： | TC9402EJD |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Voltage-to-Frequency/Frequency-to-Voltage Converters |
| 中文描述： | Voltage-to-Frequency/Frequency-to-Voltage轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 12/13頁(yè) |
| 文件大?。?/td> | 154K |
| 代理商： | TC9402EJD |
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3-298
TELCOM SEMICONDUCTOR, INC.
VOLTAGE-TO-FREQUENCY/
FREQUENCY-TO-VOLTAGE CONVERTERS
TC9400
TC9401
TC9402
Figure 10. Ripple Filter
Offset
Adjust
10k
.01
μ
F
6.2V
IN914
33k
100k
500k
0.1
μ
F
100k
V+ = 10V to 15V
1M
47pF
V
OUT
Frequency
Input
TC9400
6
10k
2
11
1.0M
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
V+
1.0k
0.01
μ
F
.001
μ
F
DET
Note: The output is referenced to pin 6, which is at 6.2V (Vz). For frequency meter applications,
a 1 mA meter with a series-scaling resistor can be placed across pins 6 and 12.
1M
47pF
V
OUT
TC9400
12
3
5
V
REF
OUT
I
IN
GND
AMP OUT
6
.001
μ
F
+
–
1M
3
2
.01
μ
F
1M
0.1
μ
F
+5
7
6
4
–5
TL071
200
Output Filtering
The output of the TC9400 has a sawtooth ripple super-
imposed on a DC level. The ripple will be rejected if the
TC9400 output is converted to a digital value by an integrat-
ing analog to digital converter, such as the TC7107 or
TC7109. The ripple can also be reduced by increasing the
value of the integrating capacitor, although this will reduce
the response time of the F/V converter.
The sawtooth ripple on the output of an F/V can be
eliminated without affecting the F/V's response time by
using the circuit in Figure 10. The circuit is a capacitance
multiplier, where the output coupling capacitor is multiplied
by the AC gain of the op amp. A moderately fast op amp,
such as the TL071, should be used.
Figure 9. F/V Single Supply F/V Converter
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TC9400EJD | Rectangular Connector; Body Material:Polyester; Series:8016; Number of Contacts:120; Contact Material:Phosphor Bronze; Contact Plating:Gold Over Nickel; Gender:Male; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes |
| TC9402CPD | VOLTAGE-TO-FREQUENCY/FREQUENCY-TO-VOLTAGE CONVERTERS |
| TC9400 | VOLTAGE-TO-FREQUENCY/FREQUENCY-TO-VOLTAGE CONVERTERS |
| TC9400CPD | VOLTAGE-TO-FREQUENCY/FREQUENCY-TO-VOLTAGE CONVERTERS |
| TC9401CPD | VOLTAGE-TO-FREQUENCY/FREQUENCY-TO-VOLTAGE CONVERTERS |
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| TC9404FNG | 制造商:Toshiba 功能描述:1Bit Cut Tape |
| TC9409BF | 制造商:TOSHIBA 制造商全稱(chēng):Toshiba Semiconductor 功能描述:SINGLE CHIP KARAOKE LSI |
| TC9411 | 制造商:TOSHIBA 制造商全稱(chēng):Toshiba Semiconductor 功能描述:CD GRAPHICS DECODER |
| TC9411F | 制造商:TOSHIBA 制造商全稱(chēng):Toshiba Semiconductor 功能描述:CD GRAPHICS DECODER |
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