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參數(shù)資料
| 型號(hào)： | AD831 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Low Distortion Mixer |
| 中文描述： | 低失真混頻器 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 225K |
| 代理商： | AD831 |
AD831
REV. B
–11–
Single Supply Operation
Figure 26 is similar to the dual supply circuit in Figure 19. Sup-
plies may be as low as 9 V but should not be higher than
11 V due to power dissipation. As in Figure 19, both the RF
and LO ports are driven single-ended and terminated.
In single supply operation, the COM terminal is the “ground”
reference for the output amplifier and must be biased to 1/2 the
supply voltage, which is done by resistors R1 and R2. T he OUT
pin must be ac-coupled to the load.
R1
110
IF
OUTPUT
R
T
NC
0.1μF
0.1μF
+9V
51.1
0.1μF
+9V
0.1μF
C2
L1
C1
RF
INPUT
82pF
82pF
0.1μF
+9V
LO INPUT
–10 dBm
5k
5k
+5V
R2
51.1
C
C
0.1μF
0.1μF
IFN
VP
IFP
50
AP
GND
VN
RFP
RFN
VN
VP
9
LON
LOP
VP
12
GND
13
BIAS
VN
AD831
Top View
50
6
7
8
4
5
10
11
AN
VFB
COM
OUT
14
15
16
17
18
1
2
3
19
20
Figure 26. Connections for
+9 V Single-Supply Operation
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