參數(shù)資料
型號: AD652SQ
廠商: Analog Devices Inc
文件頁數(shù): 21/28頁
文件大?。?/td> 779K
描述: IC V-F CONV SYNCH MONO 5V 16CDIP
標(biāo)準(zhǔn)包裝: 1
類型: 電壓至頻率
頻率 - 最大: 2MHz
全量程: ±25ppm/°C
線性: ±0.005%
安裝類型: 通孔
封裝/外殼: 16-CDIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 16-CDIP
包裝: 管件
 
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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AD652SQ/883B 功能描述:電壓頻率轉(zhuǎn)換及頻率電壓轉(zhuǎn)換 IC - SYNC 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
AD652SQ/883B2 制造商:AD 制造商全稱:Analog Devices 功能描述:Monolithic Synchronous Voltage-to-Frequency Converter
AD652SQ2 制造商:AD 制造商全稱:Analog Devices 功能描述:Monolithic Synchronous Voltage-to-Frequency Converter
AD652SQ883B2 制造商:AD 制造商全稱:Analog Devices 功能描述:Monolithic Synchronous Voltage-to-Frequency Converter
AD652SW 制造商:AD 制造商全稱:Analog Devices 功能描述:Monolithic Synchronous Voltage-to-Frequency Converter