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参数资料
| 型号： | TC9400CPD |
| 元件分类： | 模拟专用变换器 |
| 英文描述： | VOLTAGE-FREQUENCY CONVERTER, 0.1 MHz, PDIP14 |
| 封装： | PLASTIC, DIP-14 |
| 文件页数： | 8/28页 |
| 文件大小： | 545K |
| 代理商： | TC9400CPD |
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TC9400/9401/9402
DS21483D-page 16
2007 Microchip Technology Inc.
FIGURE 6-4:
DC – 10 kHz Converter.
6.4
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
integrating Analog-to-Digital Converter, such as the
TC7107. 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 6-1. 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 6-5:
Ripple Filter.
TC9400A
TC9401A
TC9402A
+5V
14
VDD
V+
FOUT/2
FOUT
Output
Common
10
9
8
5
3
12
12 pF
CREF
56 pF
CINT
1000 pF
RINT
1M
Ω
60 pF Amp
Out
VOUT
VSS
IBIAS
14
10 k
Ω
2.2 k
Ω
100 k
Ω
2k
Ω
-5V
+5V
Zero Adjust
2
7
(Typically -5V)
VREF
FIN
11
Threshold
Detector
3ms
Delay
*
*Optional If
Buffer is Needed
Offset
Adjust
VREF
OUT
IIN
42
–
+
Op
Amp
+
VREF
See
Figure 7-1:
Frequency
Input Level
Shifter
6
GND
Threshold
Detect
1
47 pF
VOUT
TC9400
12
3
5
VREFOUT
IIN
GND
AMP OUT
6
.001 F
+
–
1
3
2
.01 F1MΩ
0.1 F
+5
7
6
4
-5
TL071
200
Ω
M
Ω
M
Ω
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PDF描述 |
|---|---|
| TC9400EJDG | VOLTAGE-FREQUENCY CONVERTER, 0.1 MHz, CDIP14 |
| TC9400COD713 | VOLTAGE-FREQUENCY CONVERTER, 0.1 MHz, PDSO14 |
| TC9402EJD | VOLTAGE-FREQUENCY CONVERTER, 0.1 MHz, CDIP14 |
| TC9400EJD | VOLTAGE-FREQUENCY CONVERTER, 0.1 MHz, CDIP14 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC9400CPD | 制造商:Microchip Technology Inc 功能描述:IC F/V-V/F CONVERTER 9400 DIP14 |
| TC9400CPD | 制造商:Microchip Technology Inc 功能描述:IC F/V-V/F CONVERTER 9400 DIP14 |
| TC9400EJD | 功能描述:电压频率转换及频率电压转换 V/F Converter RoHS:否 制造商:Texas Instruments 全标度频率:4000 KHz 线性误差:+/- 1 % FSR 电源电压-最大: 电源电压-最小: 最大工作温度:+ 85 C 最小工作温度:- 25 C 安装风格:Through Hole 封装 / 箱体:PDIP-14 封装:Tube |
| TC9400F | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:SIGMA-DELTA MODULATION SYSTEM DA CONVERTER WITH A BUILT-IN 8-TIMES OVER SAMPLING DIGITAL FILTER / DIGITALATTENUATOR |
| TC9400N | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:SIGMA-DELTA MODULATION SYSTEM DA CONVERTER WITH A BUILT-IN 8-TIMES OVER SAMPLING DIGITAL FILTER / DIGITALATTENUATOR |
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