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VFC320BP PDF预览

VFC320BP

更新时间: 2024-02-24 10:50:49
品牌 Logo 应用领域
德州仪器 - TI 转换器模拟特殊功能转换器光电二极管PC
页数 文件大小 规格书
12页 234K
描述
Voltage-to-Frequency and Frequency-to-Voltage CONVERTER

VFC320BP 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:METAL CAN, TO-100, 10 PINReach Compliance Code:unknown
风险等级:5.73Is Samacsys:N
转换器类型:VOLTAGE TO FREQUENCY CONVERTERJESD-30 代码:O-MBCY-W10
JESD-609代码:e0最大线性误差 (EL):0.03%
最大负电源电压:-20 V最小负电源电压:-13 V
标称负供电电压:-15 V功能数量:1
端子数量:10最大工作频率:1 MHz
最高工作温度:125 °C最低工作温度:-55 °C
封装主体材料:METAL封装等效代码:CAN10,.23
封装形状:ROUND封装形式:CYLINDRICAL
电源:+-15 V认证状态:Not Qualified
子类别:Analog Special Function Converters最大压摆率:7.5 mA
最大供电电压:20 V最小供电电压:13 V
标称供电电压:15 V表面贴装:NO
技术:BIPOLAR温度等级:MILITARY
端子面层:Tin/Lead (Sn/Pb)端子形式:WIRE
端子位置:BOTTOMBase Number Matches:1

VFC320BP 数据手册

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Selecting R2  
pin 10 should be biased closer to zero to insure that the input  
signal at pin 10 crosses the zero threshold.  
R2 = VPULLUP/(8mA – ILOAD  
)
Errors are nulled using 0.001 • full scale frequency to null  
offset, and full scale frequency to null the gain error. The  
procedure is given on this page. Use equations from V/F  
calculations to find R1, R3, R4, C1 and C2.  
=5V/(8mA – 1.6mA), one TTL-load = 1.6mA  
=781Ω  
Choose a 7501/4-watt carbon compensation resistor with  
±5% tolerance.  
TYPICAL APPLICATIONS  
FREQUENCY-TO-VOLTAGE CONVERSION  
To operate the VFC320 as a frequency-to-voltage converter,  
connect the unit as shown in Figure 9. To interface with  
TTL-logic, the input should be coupled through a capacitor,  
and the input to pin 10 biased near +2.5V. The converter will  
detect the falling edges of the input pulse train as the voltage  
at pin 10 crosses zero. Choose C3 to make t = 0.1t (see  
Figure 9). For input signals with amplitudes less than 5V,  
Excellent linearity, wide dynamic range, and compatible  
TTL, DTL, and CMOS digital output make the VFC320  
ideal for a variety of VFC applications. High accuracy  
allows the VFC320 to be used where absolute or exact  
readings must be made. It is also suitable for systems  
requiring high resolution up to 14 bits  
Figures 10-14 show typical applications of the VFC320.  
R1  
R3  
C2  
Integrator Capacitor  
+15V  
R4  
R5  
1
2
3
4
5
6
7
14  
T
13  
12  
11  
10  
9
NC  
VOUT  
(1)  
15V  
+VCC  
Input  
Amp  
NC  
+1V  
0V  
12k  
(1)  
R6  
VCC  
C3  
One-shot  
Capacitor  
(t)  
2.5V  
fIN  
C1  
0.001µF  
R7  
2.2kΩ  
NC  
NC  
NC  
One-  
shot  
fOUT  
8
FFS = 100kHz  
NOTE: (1) Bypass with 0.01µF  
FIGURE 9. Connection Diagram for F/V Conversion.  
+
fOUT  
VIN  
Counter  
Sensor  
INA101  
VFC320  
Parallel  
Data  
High Noise  
Immunity  
Computer  
Instrumentation  
Amp  
Clock  
FIGURE 10. Inexpensive A/D with Two-Wire Digital Transmission Over Twisted Pair.  
VIN  
e1  
e2  
fOUT  
Differential  
Input  
BDC  
Counter  
VFC320  
Driver/Display  
Clock  
FIGURE 11. Inexpensive Digital Panel Meter.  
VFC320  
8
SBVS017A  

VFC320BP 替代型号

型号 品牌 替代类型 描述 数据表
VFC320BPG4 TI

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