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PDF SKY65119 Data sheet ( Hoja de datos )
| Número de pieza | SKY65119 | |
| Descripción | 700-800 MHz Linear Power Amplifier | |
| Fabricantes | Skyworks Solutions | |
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PRELIMINARY DATA SHEET
SKY65119: 700 – 800 MHz Linear Power Amplifier
Applications
• AMPS/CDMA/TDMA/GSM
• Repeaters
• WLL and ISM bands
• Mobile radio
• Paging
• Telematics
www.DataSheet4U.com
Features
• Typical POUT of 32.5 dBm
• High linearity
• Low power consumption
• Single +5 V supply
• MCM (12-pin, 8 x 8 mm) Pb-free free (MSL3, 250 °C per JEDEC
J-STD-020) SMT package
Description
Skyworks SKY65119 Power Amplifier (PA) is a fully matched,
12-pin lead-free Multi-Chip Module (MCM) developed for cellular,
Wireless Local Loop (WLL), and Industrial, Scientific, Medical
(ISM) applications. This small, power-efficient PA has a full 700 to
800 MHz bandwidth coverage packed into a single compact
package.
All active circuitry in the module is contained in a single Gallium
Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC).
The SKY65119 is manufactured with Skyworks Aluminum (Al)
GaAs Heterojunction Bipolar Transistor (HBT) process, which
allows for single supply operation while maintaining high
efficiency and good linearity.
Figure 1 shows a functional block diagram for the SKY65119. The
device package and pinout are shown in Figure 2. Signal pin
assignments and functional pin descriptions are provided in
Table 1.
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances) compliant packaging.
VCC1
Driver Amp
Bias
VCC2
Power Amp
Bias
RFIN Input Match
PA Interstage Match
PA
Output Match
RFOUT
GND
Figure 1. SKY65119 Functional Block Diagram
C1220a
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200610A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • December 7, 2006
1
1 page  
PRELIMINARY DATA SHEET • SKY65119 POWER AMPLIFIER
Evaluation Board Description
Skyworks SKY65119 Evaluation Board is used to test the
performance of the SKY65119 PA. The Evaluation Board
schematic diagram is shown in Figure 9. The schematic shows
the basic design of the board for the 700 to 800 MHz range. An
assembly drawing for the Evaluation Board is shown in Figure 10
and the layer detail is provided in Figure 11.
Circuit Design Considerations
The following design considerations are general in nature and
must be followed regardless of final use or configuration
1. Paths to ground should be made as short as possible.
2. The ground pad of the SKY65119 PA has special electrical and
www.DattahSehrmeeatl4gUro.cuonmding requirements. This pad is the main thermal
conduit for heat dissipation. Since the circuit board acts as the
heat sink, it must shunt as much heat as possible from the
amplifier. As such, design the connection to the ground pad to
dissipate the maximum wattage produced to the circuit board.
Multiple vias to the grounding layer are required.
3. Two external output bypass capacitors (0.01 µF, and 4.7 µF)
are required on the VCC1 (pin 4) supply input and also on the
VCC2 (pin 12) supply input. All four capacitors should be
placed in parallel between the supply line and ground. See
Figure 9 for a detailed diagram.
4. VCC2 (pin 12) and VCC1 (pin 4) may be connected together at
the supply.
5. The RF output includes an onboard internal DC blocking
capacitor. All impedance matching is provided internally.
Therefore, the application only needs to provide a good 50 Ω
load.
Testing Procedure
Use the following procedure to set up the SKY65119 Evaluation
Board for testing. Refer to Figure 12 for guidance:
1. Connect a +5.0 V supply voltage to VCC1 and VCC2. If
available, enable the current limiting function of the power
supply to 1.0 A.
2. Connect a signal generator to the RF signal input port. Set it to
the desired RF frequency at a power level of 4 dBm or less to
the Evaluation Board but do NOT enable the RF signal.
3. Connect a spectrum analyzer to the RF signal output port.
4. Enable the power supply.
5. Enable the RF signal.
6. Take measurements.
CAUTION: If the input signal exceeds the rated power, the
SKY65119 Evaluation Board can be permanently
damaged.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200610A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • December 7, 2006
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet SKY65119.PDF ] | |
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