PRELIMINARY DATA SHEET
SKY65171-21: 1930 – 2170 MHz, 0.5 W Power Amplifier
• CDMA2000 cellular band
• PCS1900 band
• WCDMA, Bands I and II
• Femtocell transmitters
• Wideband frequency operation: 1930 to 2170 MHz
• High gain: > 27 dB
• OP1dB: > +27 dBm
• ACPR ≤ –48 dBc for POUT ≥ +18 dBm
• ACLR ≤ –45 dBc for POUT ≥ +18 dBm
• Single DC supply: 5 V
• Internal RF match and bias circuits
• PA on/off control voltage
• Small footprint, MCM (20-pin, 6 x 6 mm) SMT package (MSL3,
260 °C per JEDEC J-STD-020)
Skyworks SKY65171-21 is a fully-matched, 0.5 W Power
Amplifier (PA) with high efficiency, designed for use in the 1930 to
2170 MHz band.
The device is fabricated using Skyworks high reliability Indium
Gallium Phosphide (InGaP) Heterojunction Bipolar Transistor (HBT)
technology. This process allows for single supply operation while
maintaining high efficiency and good linearity.
The SKY65171-21 contains all of the active bias and RF matching
circuits, which make it easy to integrate into 50 Ω RF systems.
The internal input and output match are optimized for gain, 1 dB
Compression Point (P1dB), Adjacent Channel Power Ratio (ACPR),
Adjacent Channel Leakage Ratio (ACLR),and efficiency when
integrated in a 50 Ω system.
The primary bias to the SKY65171-21 can be supplied directly
from a single 5 VDC supply. The PA is designed to operate with
lower current by reducing the bias voltage.
The device is internally matched and mounted in a 20-pin,
6 x 6 mm Multi-Chip Module (MCM) Surface-Mounted Technology
(SMT) package, which allows for a highly manufacturable low cost
solution. The device package and pinout for the 20-pin MCM are
shown in Figure 1. A block diagram of the SKY65171-21 is shown
in Figure 2.
Figure 1. SKY65171-21 Pinout – 20-Pin MCM
Skyworks Solutions, Inc. • Phone  376-3000 • Fax  376-3100 • email@example.com • www.skyworksinc.com
201380B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 14, 2011
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