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SKY65171-21 Datasheet Preview

SKY65171-21 Datasheet

0.5 W Power Amplifier

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PRELIMINARY DATA SHEET
SKY65171-21: 1930 – 2170 MHz, 0.5 W Power Amplifier
Applications
CDMA2000 cellular band
PCS1900 band
WCDMA, Bands I and II
Femtocell transmitters
Features
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)
Description
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
(Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201380B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 14, 2011
1
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Skyworks Solutions

SKY65171-21 Datasheet Preview

SKY65171-21 Datasheet

0.5 W Power Amplifier

No Preview Available !

PRELIMINARY DATA SHEET • SKY65171-21 0.5 W POWER AMPLIFIER
Figure 2. SKY65171-21 Block Diagram
Technical Description
The SKY65171-21 PA contains all of the needed RF matching and
DC biasing circuits. The device is a two-stage, HBT InGaP device
optimized for high linearity and power efficiency. These features
make the device suitable for wideband digital applications, where
PA linearity and power consumption are of critical importance
(e.g., femtocell and infrastructure applications).
The device has been characterized with standard CDMA2000 and
WCDMA modulated signals. Under these stringent test conditions,
the device exhibits excellent spectral purity and power efficiency.
Electrical and Mechanical Specifications
Signal pin assignments and functional pin descriptions are
described in Table 1. The absolute maximum ratings of the
SKY65171-21 are provided in Table 2. Electrical specifications are
provided in Table 3.
Typical performance characteristics of the SKY65171-21 are
illustrated in Figures 3 through 8.
Table 1. SKY65171-21 Signal Descriptions
Pin # Name
Description
1 GND
Ground
2 RF_IN
RF input
3 GND
Ground
4 PA_EN
PA enable
5 GND
Ground
6 VC_BIAS
Bias voltage, 5 V
7 GND
Ground
8 V_REF1
Bias reference 1 voltage, 5 V
9 GND
Ground
10 V_REF2
Bias reference 2 voltage, 5 V
Pin #
11
12
13
14
15
16
17
18
19
20
Name
GND
RF_OUT
GND
GND
VCC2
GND
N/C
GND
VCC1
N/C
Description
Ground
RF output
Ground
Ground
Stage 2 collector voltage, 5 V
Ground
No connection
Ground
Stage 1 collector voltage, 5 V
No connection
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2 March 14, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201380B
Free Datasheet http://www.datasheet-pdf.com/


Part Number SKY65171-21
Description 0.5 W Power Amplifier
Maker Skyworks Solutions
Total Page 12 Pages
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