ADL5387(RevB) Просмотр технического описания (PDF) - Analog Devices
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ADL5387 Datasheet PDF : 28 Pages
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ADL5387
APPLICATIONS INFORMATION
BASIC CONNECTIONS
Figure 51 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 60 MHz to 4 GHz.
The LO return loss can be seen in Figure 24. Figure 50 shows
the LO input configuration.
Data Sheet
LO INPUT
8 LOIP
1000pF
1000pF
9 LOIN
Figure 50. Single-Ended LO Drive
The recommended LO drive level is between −6 dBm and
+6 dBm. For operation below 50 MHz, a minimum LO drive
level of 0 dBm should be used. 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
60 MHz and 4 GHz.
RFC
ETC1-1-13
120nH 1000pF 1000pF 120nH
VPOS
0.1µF
100pF
VPOS
0.1µF
100pF
24 23 22 21 20 19
1 VPA
2 COM
3 BIAS
4 VPL
5 VPL
6 VPL
ADL5387
VPB 18
VPB 17
QHI 16
QLO 15
IHI 14
ILO 13
7 8 9 10 11 12
100pF
VPOS
0.1µF
QHI
QLO
IHI
ILO
1000pF
1000pF
LO
Figure 51. Basic Connections Schematic for ADL5387
Rev. B | Page 16 of 28
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