收藏本站
参数资料
型号： AD652SQ
厂商： Analog Devices Inc
文件页数： 20/28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
AD652
 
Rev. C | Page 20 of 28
SVFC Demultiplexer
The demultiplexer needed to separate the combined signals is
shown in Figure 30. A phase-locked loop drives another 4-phase
clock chip to lock onto the reconstructed clock signal. The sync
pulses are distinguished from the data pulses by their shorter
duration. Each falling edge on the multiplex input signal
triggers the one-shot; at the end of this one-shot pulse, the
multiplex input signal is sampled by a D-type flip-flop. If the
signal is high, the pulse was short (a sync pulse) and the
Q
output of the D-flop goes low. The D-flop is cleared a short time
(two gate delays) later, and the clock is reconstructed as a
stream of short, low-going pulses. If the multiplex input is a data
pulse, then the signal will still be low and no pulse will appear at
the reconstructed clock output when the D-flop samples at the
end of the one-shot period. See Figure 29.
If it is desired to recover the individual frequency signals, the
multiplex input is sampled with a D-flop at the appropriate
time, as determined by the rising edge of the various phases
generated by the clock chip. These frequency signals can be
counted as a ratio relative to the reconstructed clock, so it is not
even necessary for the transmitter to be crystal-controlled as
shown in Figure 30.
?SPAN class="pst AD652SQ_2632819_6">1
?SPAN class="pst AD652SQ_2632819_6">1
SYNC
?SPAN class="pst AD652SQ_2632819_6">2
?SPAN class="pst AD652SQ_2632819_6">3
DATA
?SPAN class="pst AD652SQ_2632819_6">4
?SPAN class="pst AD652SQ_2632819_6">2
?SPAN class="pst AD652SQ_2632819_6">3
?SPAN class="pst AD652SQ_2632819_6">4
1MULTIPLEX
OUTPUT
 
Figure 28. Multiplexer Waveforms
MULTIPLEX
INPUT
ONE SHOT
RECONSTRUCTED
CLOCK
?SPAN class="pst AD652SQ_2632819_6">1
(PHASE LOCKED TO
RECONSTRUCTED
CLOCK)
 
Figure 29. Demultiplexer Waveforms
14
13
5
4
10
4
2
11
8
9
0.1?/SPAN>F
PHASE LOCK LOOP
MC4044
3
1
3.01k&
719&
1k&
+5V
+5V
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
?SPAN class="pst AD652SQ_2632819_6">4
?SPAN class="pst AD652SQ_2632819_6">3
?SPAN class="pst AD652SQ_2632819_6">1
+5V
?SPAN class="pst AD652SQ_2632819_6">2
TANK 1
TIM 9904A
4 PHASE CLOCK
TANK 2    XTAL 2
XTAL 1
FFQ
OSCIN
FFD
OSCOUT
?SPAN class="pst AD652SQ_2632819_6">3
V
DD
?SPAN class="pst AD652SQ_2632819_6">4
?SPAN class="pst AD652SQ_2632819_6">1
?SPAN class="pst AD652SQ_2632819_6">2
GND 1
GND 2
V
CC
?SPAN class="pst AD652SQ_2632819_6">1 TTL
?SPAN class="pst AD652SQ_2632819_6">2 TTL
?SPAN class="pst AD652SQ_2632819_6">3 TTL
?SPAN class="pst AD652SQ_2632819_6">4 TTL
130&
150&
3
16
15
11
6
8
9
7
2
4
5
+5V
50pF
VCO
'LS629
390pF
'00
'00
CLEAR
Q
CLOCK
D  1/2 '74
RECONSTRUCTED
CLOCK OUTPUT
MPX
INPUT
1
14
2
13
3
12
4
11
5
10
6
9
7
8
Q Q
ONE SHOT
'121
GND
NC
R
INT
C
EXT
R
EXT
/C
EXT
NC
NC
V
CC
Q
+5V
A2
A1
NC
2k&
50pF
+5V
Q
D
CLOCK
Q
f2
?SPAN class="pst AD652SQ_2632819_6">2
'74 (1/2)
D
CLOCK
Q
f3
RECONSTRUCTED
FREQUENCY OUTPUTS
?SPAN class="pst AD652SQ_2632819_6">3
'74 (1/2)
D
CLOCK
Q
f4
?SPAN class="pst AD652SQ_2632819_6">4
'74 (1/2)
NC = NO CONNECT
 
Figure 30. SVFC Demultiplexers
相关PDF资料
PDF描述
AD654JNZ/+ IC CONV VOLT-FREQ 500KHZ 8DIP
AD7740YRM IC CONVERTER V TO FREQ 8-MSOP
ADM1070ARTZ-REEL7 IC CTRLR HOTSWAP -48V SOT23-6
ADM1073ARU-REEL IC CTRLR HOTSWAP -48V 14TSSOP
ADM4210-2AUJZ-RL7 IC CTLR HOTSWAP LV TSOT23-6
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
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*