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SKY65170-21 Datasheet Preview

SKY65170-21 Datasheet

0.5W High Power Power Amplifier

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DATA SHEET
SKY65170-21: 860 – 960 MHz, 0.5 W High Power Power
Amplifier
Applications
CDMA2000 cellular band
WCDMA, Bands V and VIII
Femtocell transmitters
Features
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.
Description
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.
GND 1
RF_IN 2
GND 3
PA_EN 4
GND 5
VC_BIAS 6
20 19 18 17
7 8 9 10
16 GND
15 VCC2
14 GND
13 GND
12 RF_OUT
11 GND
S2040a
Figure 1. SKY65170-21 Pinout – 20-Pin MCM
(Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201379B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 14, 2011
1




Skyworks Solutions

SKY65170-21 Datasheet Preview

SKY65170-21 Datasheet

0.5W High Power Power Amplifier

No Preview Available !

DATA SHEET • SKY65170-21 0.5 W, HIGH POWER PA
V_REF1
V_REF2
VC_BIAS
PA_EN
Active Bias
RF_IN
Input
Match
Inter-Stage
Match
Stage 1
PA
Stage 2
PA
Output
Match
RF_OUT
VCC1
VCC2
Figure 2. SKY65170-21 Block Diagram
S2041a
Technical Description
The SKY65170-21 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 a standard CDMA2000
modulated signal. 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
SKY65170-21 are provided in Table 2. Electrical specifications are
provided in Table 3.
Typical performance characteristics of the SKY65170-21 are
illustrated in Figures 3 through 7.
Table 1. SKY65170-21 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 # Name
11 GND
12 RF_OUT
13 GND
14 GND
15 VCC2
16 GND
17 N/C
18 GND
19 VCC1
20 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 December 14, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201379B


Part Number SKY65170-21
Description 0.5W High Power Power Amplifier
Maker Skyworks Solutions
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