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參數(shù)資料
| 型號(hào)： | TC9402CPD |
| 廠商： | TelCom Semiconductor, Inc. |
| 英文描述： | VOLTAGE-TO-FREQUENCY/FREQUENCY-TO-VOLTAGE CONVERTERS |
| 中文描述： | VOLTAGE-TO-FREQUENCY/FREQUENCY-TO-VOLTAGE變換器 |
| 文件頁數(shù)： | 12/13頁 |
| 文件大?。?/td> | 154K |
| 代理商： | TC9402CPD |
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 |
|---|---|
| TC9400 | VOLTAGE-TO-FREQUENCY/FREQUENCY-TO-VOLTAGE CONVERTERS |
| TC9400CPD | VOLTAGE-TO-FREQUENCY/FREQUENCY-TO-VOLTAGE CONVERTERS |
| TC9401CPD | VOLTAGE-TO-FREQUENCY/FREQUENCY-TO-VOLTAGE CONVERTERS |
| TC9402 | VOLTAGE-TO-FREQUENCY/FREQUENCY-TO-VOLTAGE CONVERTERS |
| TC9400COD | VOLTAGE-TO-FREQUENCY/FREQUENCY-TO-VOLTAGE CONVERTERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TC9402CPD | 制造商:Microchip Technology Inc 功能描述:IC F/V-V/F CONVERTER |
| TC9402CPD | 制造商:Microchip Technology Inc 功能描述:V/F Converter |
| TC9402EJD | 功能描述:電壓頻率轉(zhuǎn)換及頻率電壓轉(zhuǎn)換 V/F Converter RoHS:否 制造商:Texas Instruments 全標(biāo)度頻率:4000 KHz 線性誤差:+/- 1 % FSR 電源電壓-最大: 電源電壓-最小: 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-14 封裝:Tube |
| 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 |
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