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參數資料
| 型號： | ADL5387ACPZ-WP1 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 50 MHz to 2 GHz Quadrature Demodulator |
| 中文描述： | 50兆赫至2千兆赫正交解調器 |
| 文件頁數： | 15/28頁 |
| 文件大小： | 648K |
| 代理商： | ADL5387ACPZ-WP1 |
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ADL5387
APPLICATIONS INFORMATION
BASIC CONNECTIONS
Figure 47 shows the basic connections schematic for the ADL5387.
POWER SUPPLY
The nominal voltage supply for the ADL5387 is 5 V and is
applied to the VPA, VPB, VPL, and VPX pins. Ground should
be connected to the COM, CML, and CMRF pins. Each of
the supply pins should be decoupled using two capacitors;
recommended capacitor values are 100 pF and 0.1 μF.
LOCAL OSCILLATOR (LO) INPUT
The LO port is driven in a single-ended manner. The LO signal
must be ac-coupled via a 1000 pF capacitor directly into LOIP,
and LOIN is ac-coupled to ground also using a 1000 pF capacitor.
The LO port is designed for a broadband 50 Ω match and
therefore exhibits excellent return loss from 100 MHz to 4 GHz.
The LO return loss can be seen in Figure 20. Figure 46 shows
the LO input configuration.
Rev. 0 | Page 15 of 28
LO INPUT
LOIP
LOIN
1000pF
1000pF
8
9
0
Figure 46. Single-Ended LO Drive
The recommended LO drive level is between 6 dBm and
+6 dBm. The LO frequency at the input to the device should be
twice that of the desired LO frequency at the mixer core. The
applied LO frequency range is between 100 MHz and 4 GHz.
RFC
120nH
120nH
1000pF 1000pF
100pF
100pF
0.1μF
1000pF
100pF
1000pF
0.1μF
0.1μF
V
POS
V
POS
LO
V
POS
ETC1-1-13
1
ADL5387
C
C
R
R
C
V
C
7
L
8
L
9
C
10
C
11
C
12
24
23
22
21
20
19
2
3
4
5
6
VPA
COM
BIAS
VPL
VPL
VPL
18
17
16
15
14
13
VPB
QHI
QLO
IHI
ILO
VPB
QHI
QLO
IHI
ILO
0
Figure 47. Basic Connections Schematic for ADL5387
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