SKY65170-21: 860 – 960 MHz, 0.5 W High Power Power
• CDMA2000 cellular band
• WCDMA, Bands V and VIII
• Femtocell transmitters
• Wideband frequency operation: 860 to 960 MHz
• High gain: > 30 dB
• OP1dB: > +27 dBm
• ACPR ≤ –51 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 Pb-free products are compliant with
all applicable legislation. For additional
information, refer to Skyworks Deﬁnition of
Lead (Pb)-Free, document number SQ04-0073.
Skyworks SKY65170-21 is a fully-matched, 0.5 W Power
Amplifier (PA) with high efficiency, designed for use in the 860 to
960 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 SKY65170-21 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
Output Compression Point (OP1dB), Adjacent Channel Leakage
Ratio (ACLR), Adjacent Channel Power Ratio (ACPR), and
efficiency when integrated in a 50 Ω system.
The primary bias to the SKY65170-21 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 SKY65170-21 is
shown in Figure 2.
20 19 18 17
7 8 9 10
Figure 1. SKY65170-21 Pinout – 20-Pin MCM
Skyworks Solutions, Inc. • Phone  376-3000 • Fax  376-3100 • email@example.com • www.skyworksinc.com
201379B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 14, 2011