isl55016 Intersil Corporation, isl55016 Datasheet - Page 10

• Manufacturer Part Number: isl55016
• Description: Mmic Silicon Bipolar Differential Amplifier
• Manufacturer: Intersil Corporation

Thermal Management
The power dissipation of ISL55016 is about 500mW. The
recommended layout is shown in Figure 31. The ground pad
should be placed under the bottom of the device. At least
two thermal vias are needed to lower the temperature.
Choices of Components
ISL55016 is designed for wide bandwidth applications, from
50MHz to 3GHz. The decoupling and RF choke components
should be chosen carefully for different frequency
applications. Tables 1 and 2 list the components used on the
evaluation board.
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
FREQUENCY BAND
TABLE 1. LIST OF COMPONENTS (50MHz~300MHz)
-10
-15
-20
-25
-30
C1, C2
C4, C5
R1, R2
-5
L1, L2
0
C3
C6
0
FIGURE 32. |S11| vs FREQUENCY
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
PROBE STATION
0.5G
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
For information regarding Intersil Corporation and its products, see www.intersil.com
1.0G
FREQUENCY (Hz)
10
27Ω/0Ω
VALUE
2200pF
2200pF
2.2µH
0.1µF
1nF
1.5G
EVAL BOARD WITH
MATCHING NETWORK
2.0G
DESCRIPTION/
DIMENSIONS
2.5G
Ferrite/0603
Multilayer
0603
0603
0603
1206
0402
3.0G
ISL55016
Evaluation Board Setup
The Evaluation board is designed to connect directly to the
2-way 180° Power combiner to recombine signals from
-2GHz and allow single-ended assessment with good phase
matching the two differential signals into one single-ended
output. For lower frequencies, a different choice of power
combiner is needed and short matched coaxial cables
should be used to connect to the combiner. This setup is
used on noise figure measurement and differential
OIP2/OIP3 measurements.
RF
FIGURE 33. EVALUATION BOARD WITH 2-WAY 180° POWER
FREQUENCY BAND
IN
C1
C2
TABLE 2. LIST OF COMPONENTS (300MHz~3GHz)
C1, C2
C4, C5
R1, R2
L1, L2
1
2
3
C3
C6
ISL55016
COMBINER
6
5
4
R1
L1
C6
C3
+5V
R2
L2
27Ω/0Ω
VALUE
100nH
100pF
100pF
100pF
C4
0.1µF
C5
RF
OUT
RF
1
2
COMBINER
POWER
180°
DESCRIPTION/
DIMENSIONS
Mount/0402
Surface
s
0603
0603
0603
1206
0402
DIFFERENTIAL
SIGNAL
OUTPUT
June 24, 2008
FN6526.1