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ADL5602ARKZ-R7

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
ADL5602 Data Sheet
Rev. A | Page 12 of 16
BASIC CONNECTIONS
The basic connections for operating the ADL5602 are shown in
Figure 16. Recommended components are listed in Table 5. The
input and output should be ac-coupled with appropriately sized
capacitors (device characterization was performed with 0.1 μF
capacitors). A 5 V dc bias is supplied to the amplifier through
the bias inductor connected to RFOUT (Pin 3). The bias voltage
should be decoupled using a 1 µF capacitor, a 1.2 nF capacitor,
and a 68 pF capacitor.
RFIN
GND
GND
RFOUT
1
2
3
ADL5602
C6
1µF
L1
470nH
GND
RFIN
RFOUT
(2)
C5
1.2nF
C4
68pF
C2
0.1µF
C1
0.1µF
VCC
08190-015
Figure 16. Basic Connections
SOLDERING INFORMATION AND RECOMMENDED
PCB LAND PATTERN
Figure 17 shows the recommended land pattern for the ADL5602.
To minimize thermal impedance, the exposed paddle on the
package underside should be soldered down to a ground plane
along with Pin 2. If multiple ground layers exist, they should be
stitched together using vias. For more information on land
pattern design and layout, refer to the AN-772 Application
Note, A Design and Manufacturing Guide for the Lead Frame
Chip Scale Package (LFCSP).
1.50mm
3.00mm
1.27mm
0.62mm
3.48mm
1.80mm
0.86mm
5.37mm
0.20mm
0.762mm 0.635mm
0.86mm
08190-101
Figure 17. Recommended Land Pattern
Table 5. Recommended Components for Basic Connections
Frequency (MHz) C1 C2 L1 C4 C5 C6
50 to 4000 0.1 µF 0.1 µF 470 nH (Coilcraft 0603LS-NX or equivalent) 68 pF 1.2 nF 1 µF
Data Sheet ADL5602
Rev. A | Page 13 of 16
W-CDMA ACPR PERFORMANCE
Figure 18 shows a plot of adjacent channel power ratio (ACPR)
vs. P
OUT
for the ADL5602. The signal type being used is a single
W-CDMA carrier (Test Model 1-64) at 2140 MHz. This signal is
generated by a very low ACPR source. ACPR is measured at the
output by a high dynamic range spectrum analyzer, which
incorporates an instrument noise correction function.
The ADL5602 achieves an ACPR of −75 dBc at −5 dBm output,
at which point device noise and not distortion is beginning to
dominate the power in the adjacent channels. At an output
power of +5 dBm, ACPR is still very low at −61 dBc, making
the device particularly suitable for PA driver applications.
–40
–45
–50
–55
–60
–65
–70
–75
–80
–20
–15
–10
–5
0 5
10
ACPR AT 5MHz CARRIER OFFSET (dBc)
P
OUT
(dBm)
08190-017
Figure 18. ACPR vs. P
OUT
, Single Carrier W-CDMA (Test Model 1-64) at
2140 MHz Evaluation Board
ADL5602 Data Sheet
Rev. A | Page 14 of 16
EVALUATION BOARD
Figure 20 shows the schematic for the ADL5602 evaluation
board. The board is powered by a single 5 V supply.
The components used on the board are listed in Table 6.
Power can be applied to the board through clip-on leads
(VCC and GND).
08190-018
Figure 19. Evaluation Board Layout (Top)
RFIN
GND
GND
RFOUT
1
2
3
ADL5602
C6
1µF
L1
470nH
GND
RFIN
RFOUT
(2)
C5
1.2nF
C4
68pF
C2
0.1µF
C1
0.1µF
VCC
08190-019
Figure 20. Evaluation Board Schematic
Table 6. Evaluation Board Configuration Options
Component Description Default Value
C1, C2 AC-coupling capacitors 0.1 μF, 0402
L1 DC bias inductor 470 nH, 0603 (Coilcraft 0603LS-NX or equivalent)
VCC and GND Clip-on terminals for power supply
C4, C5, C6 Power supply decoupling capacitors C4 = 68 pF, 0603; C5 = 1.2 nF, 0603; C6 = 1 μF, 1206
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

ADL5602ARKZ-R7

Mfr. #:
Buy ADL5602ARKZ-R7
Manufacturer:
Analog Devices Inc.
Description:
RF Amplifier 50MHz-4.0GHz RF/IF Gain Block
Lifecycle:
New from this manufacturer.
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