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参数资料
| 型号： | AD652SQ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 21/28页 |
| 文件大小： | 779K |
| 描述： | IC V-F CONV SYNCH MONO 5V 16CDIP |
| 标准包装： | 1 |
| 类型： | 电压至频率 |
| 频率 - 最大： | 2MHz |
| 全量程： | ±25ppm/°C |
| 线性： | ±0.005% |
| 安装类型： | 通孔 |
| 封装/外壳： | 16-CDIP（0.300"，7.62mm） |
| 供应商设备封装： | 16-CDIP |
| 包装： | 管件 |
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AD652
Rev. C | Page 21 of 28
V
S
?SPAN class="pst AD652SQ_2632819_4">2
+V
S
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
AD652
SYNCHRONOUS
VOLTAGE-TO-
FREQUENCY
CONVERTER
0.02?/SPAN>F
OLTS
OUT
V
2
+5V
4k&
MPX INPUT
V
S
?SPAN class="pst AD652SQ_2632819_4">3
+V
S
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
AD652
SYNCHRONOUS
VOLTAGE-TO-
FREQUENCY
CONVERTER
0.02?/SPAN>F
VOLTS
OUT
V
3
V
S
?SPAN class="pst AD652SQ_2632819_4">4
+V
S
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
AD652
SYNCHRONOUS
VOLTAGE-TO-
FREQUENCY
CONVERTER
0.02?/SPAN>F
VOLTS
OUT
V
4
1N4148
?SPAN class="pst AD652SQ_2632819_4">2,?SPAN class="pst AD652SQ_2632819_4">3,?SPAN class="pst AD652SQ_2632819_4">4 ARE PINS 15, 7, 6 OF TIM9904A FROM DEMUX FIGURE 30
Figure 31. Demultiplexer Frequency-to-Voltage Conversion
+5V
TRANSFORMER
PICO 31080
24 TURNS
T50- MICROMETALS
CK
'74
Q
D
CK
'74
Q
D
Q
500&
+15V
1
2
3
4
5
6
7
15V
8
16
15
14
13
12
11
10
9
ONE
SHOT
AND
"D"
FLOP
Q CK
D
Q
1mA
20k&
AD652
SYNCHRONOUS
VOLTAGE-TO-
FREQUENCY
CONVERTER
5V
REFERENCE
0.02?/SPAN>F
1nF
LO
HI
V
IN
3k&
1k&
1nF
6N137
OPTO-
ISOLATOR
5
4
6
3
7
2
8
1
ISOLATION BARRIER
FREQUENCY
OUTPUT
2N6659 2N6659
MYLAR
0.01?/SPAN>F
+5V
10?/SPAN>H
100&
100&
1 2 3
1.65k&
1.65k&
AD654
1
8
2
7
3
6
4
5
DRIVER
OSC
200pF
1.2k&
6.8k&
10k&
1.5k&
V
AD589
1.2V
+5V
1N4148
4
5
6
7
+15V
REG
7815
15V
REG
7915
47?/SPAN>F
47?/SPAN>F
47?/SPAN>F
47?/SPAN>F
+15V
15V
10k&
Figure 32. Isolated Synchronous VFC
Analog Signal Reconstruction
If it is desired to reconstruct the analog voltages from the
multiplex signal, three more AD652 SVFC devices are used as
frequency-to-voltage converters, as shown in Figure 31. The
comparator inputs of all the devices are strapped together, the
+ inputs are held at a 1.2 V TTL threshold, and the inputs
are driven by the multiplex input. The three clock inputs are
driven by the
?/DIV>
outputs of the clock chip. Remember that data
at the comparator input of the SVFC is loaded on the falling
edge of the clock signal and shifted out on the next rising edge.
Note that the frequency signals for each data channel are
available at the frequency output pin of each FVC.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD652SQ/883B | 功能描述:电压频率转换及频率电压转换 IC - SYNC 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 |
| AD652SQ/883B2 | 制造商:AD 制造商全称:Analog Devices 功能描述:Monolithic Synchronous Voltage-to-Frequency Converter |
| AD652SQ2 | 制造商:AD 制造商全称:Analog Devices 功能描述:Monolithic Synchronous Voltage-to-Frequency Converter |
| AD652SQ883B2 | 制造商:AD 制造商全称:Analog Devices 功能描述:Monolithic Synchronous Voltage-to-Frequency Converter |
| AD652SW | 制造商:AD 制造商全称:Analog Devices 功能描述:Monolithic Synchronous Voltage-to-Frequency Converter |
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