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AD630KNZ PDF预览

AD630KNZ

更新时间： 2024-02-27 04:40:56
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
13页 488K
描述
Balanced Modulator/Demodulator

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AD630KNZ 技术参数

是否Rohs认证：不符合生命周期：Obsolete
零件包装代码：QLCC包装说明：CERAMIC, LCC-20
针数：20Reach Compliance Code：not_compliant
ECCN代码：5A991.AHTS代码：8542.39.00.01
风险等级：5.02Is Samacsys：N
商用集成电路类型：CONSUMER CIRCUITJESD-30 代码：S-CQCC-N20
JESD-609代码：e0长度：8.89 mm
端子数量：20最高工作温度：125 °C
最低工作温度：-55 °C封装主体材料：CERAMIC, METAL-SEALED COFIRED
封装代码：QCCN封装形状：SQUARE
封装形式：CHIP CARRIER峰值回流温度（摄氏度）：220
认证状态：Not Qualified座面最大高度：2.54 mm
最大压摆率：5 mA最大供电电压 (Vsup)：16.5 V
最小供电电压 (Vsup)：5 V表面贴装：YES
温度等级：MILITARY端子面层：Tin/Lead (Sn/Pb)
端子形式：NO LEAD端子节距：1.27 mm
端子位置：QUAD处于峰值回流温度下的最长时间：30
宽度：8.89 mmBase Number Matches：1

AD630KNZ 数据手册

 浏览型号AD630KNZ的Datasheet PDF文件第6页浏览型号AD630KNZ的Datasheet PDF文件第7页浏览型号AD630KNZ的Datasheet PDF文件第8页浏览型号AD630KNZ的Datasheet PDF文件第10页浏览型号AD630KNZ的Datasheet PDF文件第11页浏览型号AD630KNZ的Datasheet PDF文件第12页 
AD630  
AD630 when used to modulate a 100 kHz square wave carrier  
with a 10 kHz sinusoid. The result is the double sideband sup-  
pressed carrier waveform.  
the system input tied to 0 V, and a switching or carrier wave-  
form applied to the comparator, a low level square wave will  
appear at the output. The differential offset adjustment potenti-  
ometers can be used to null the amplitude of this square wave  
(Pins 3 and 4). The common-mode offset adjustment can be  
used to zero the residual dc output voltage (Pins 5 and 6).  
These functions should be implemented using 10k trim poten-  
tiometers with wipers connected directly to Pin 8 as shown in  
Figures 9a and 9b.  
These balanced modulator topologies accept two inputs, a signal  
(or modulation) input applied to the amplifying channels and a  
reference (or carrier) input applied to the comparator.  
10k⍀  
10k⍀  
DIFF  
ADJ  
CM  
ADJ  
CHANNEL STATUS OUTPUT  
6
4
3
5
2.5k⍀  
2.5k⍀  
The channel status output, Pin 7, is an open collector output  
referenced to –VS that can be used to indicate which of the two  
input channels is active. The output will be active (pulled low)  
when Channel A is selected. This output can also be used to  
supply positive feedback around the comparator. This produces  
hysteresis which serves to increase noise immunity. Figure 7  
shows an example of how hysteresis may be implemented. Note  
that the feedback signal is applied to the inverting (–) terminal  
of the comparator to achieve positive feedback. This is because  
the open collector channel status output inverts the output sense  
of the internal comparator.  
MODULATION  
INPUT  
1
2
AMP A  
12  
11  
13  
A
+V  
S
20  
B
10k⍀  
MODULATED  
OUTPUT  
SIGNAL  
17  
18  
AMP B  
14  
15  
16  
7
–V  
10k⍀  
19  
AD630  
CARRIER  
INPUT  
5k⍀  
COMP  
9
10  
8
–V  
S
+5V  
Figure 9a. AD630 Configured as a Gain-of-One Balanced  
Modulator  
100k⍀  
1M⍀  
100k⍀  
9
7
10k⍀  
10k⍀  
DIFF  
ADJ  
CM  
ADJ  
10  
8
6
4
3
5
–15V  
100⍀  
2.5k⍀  
2.5k⍀  
MODULATION  
INPUT  
1
2
AMP A  
12  
11  
13  
A
+V  
S
20  
Figure 7. Comparator Hysteresis  
B
10k⍀  
MODULATED  
OUTPUT  
SIGNAL  
17  
18  
AMP B  
The channel status output may be interfaced with TTL inputs  
as shown in Figure 8. This circuit provides appropriate level  
shifting from the open-collector AD630 channel status output to  
TTL inputs.  
14  
15  
16  
–V  
10k⍀  
19  
AD630  
CARRIER  
INPUT  
5k⍀  
COMP  
7
9
10  
8
+5V  
–V  
S
+15V  
100k⍀  
22k⍀  
6.8k⍀  
Figure 9b. AD630 Configured as a Gain-of-Two Balanced  
Modulator  
IN914s  
AD630  
7
TTL INPUT  
2N2222  
8
5V  
20␮s  
5V  
–15V  
MODULATION  
INPUT  
Figure 8. Channel Status—TTL Interface  
APPLICATIONS: BALANCED MODULATOR  
CARRIER  
INPUT  
Perhaps the most commonly used configuration of the AD630 is  
the balanced modulator. The application resistors provide precise  
symmetric gains of 1 and 2. The 1 arrangement is shown in  
Figure 9a and the 2 arrangement is shown in Figure 9b. These  
cases differ only in the connection of the 10 kΩ feedback resistor  
(Pin 14) and the compensation capacitor (Pin 12). Note the use  
of the 2.5 kΩ bias current compensation resistors in these  
examples. These resistors perform the identical function in the  
1 gain case. Figure 10 demonstrates the performance of the  
OUTPUT  
SIGNAL  
10V  
Figure 10. Gain-of-Two Balanced Modulator Sample  
Waveforms  
–8–  
REV. E  
1...678910111213

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