SKY65112-84LF Skyworks Solutions, SKY65112-84LF Datasheet - Page 6

• Manufacturer Part Number: SKY65112-84LF
• Description: Linear Power Amplifier Driver
• Manufacturer: Skyworks Solutions

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Absolute Maximum Ratings
1. Case temperature is defined as the temperature of the surface of the exposed paddle
Performance is guaranteed only under the conditions listed in the specifications table and is
not guaranteed under the full range(s) described by the Absolute Maximum specifications.
Exceeding any of the absolute maximum/minimum specifications may result in permanent
damage to the device and will void the warranty.
CAUTION: Although this device is designed to be as robust as
PRELIMINARY DATA SHEET • SKY65112-84LF
Technical Description
The SKY65112 is a single stage linear amplifier. The device
should be externally matched for optimum gain and linearity
using external passive components on the input and on the
output ports. These external components allow the amplifier to
be optimized for the desired operating frequency.
The RF input is internally connected to pins 2, 3 and 4 via
different lengths of bond wire. The inductances produced by
these bond wires can be utilized in the impedance matching
circuit on the amplifier’s input port.
The RF output is internally connected to pins 6 and 7 for current
sharing. Both of these pins should be connected externally to the
same printed circuit board trace.
The SKY65112 contains a bias circuit for optimum temperature
tracking performance. An external resistor is used to set the bias
current level. The value of this resistor can be selected to set the
amplifier operational mode to Class A, B, or AB, allowing for
optimization of linearity and efficiency.
6
RF input power (P
Supply voltage (V
Reference current (I
Total supply current (I
Power dissipation (P
Case operating temperature
Storage temperature (T
Junction temperature (T
Thermal resistance (θ
where it is soldered to the printed circuit board ground. This surface must be connected
via the lowest possible thermal impedance to an adequate heatsink.
possible, ESD (Electrostatic Discharge) can damage
this device. This device must be protected at all times
from ESD. Static charges may easily produce poten-
tials of several kilovolts on the human body or
equipment, which can discharge without detection.
Industry-standard ESD precautions must be employed
at all times.
Characteristic
CC
IN
)
)
REF
DISS
December 19, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200453 Rev. B
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
CC
JC
)
ST
)
)
J
+ I
)
)
REF
(1) (
)
T
C
)
-50 to +150 °C
-50 to +150 °C
-40 to +85 °C
42 °C/W
22 dBm
500 mA
10 mA
Value
2 W
8 V
Package and Handling Information
Since the device package is sensitive to moisture absorption, it is
baked and vacuum packed before shipping. Instructions on the
shipping container label regarding exposure to moisture after the
container seal is broken must be followed. Otherwise, problems
related to moisture absorption may occur when the part is
subjected to high temperature during solder assembly.
Please refer to Skyworks solder reflow application note, available
at www.skyworksinc.com, for instructions on mounting the
SKY65112 to a printed circuit board.
Production quantities of this product are shipped in a standard
tape and reel format. For packaging details, refer to the Skyworks
Application Note, “ Tape and Reel ,” document number 101568.
Pin Out
Pin Descriptions
Backside
Pin No.
2, 3, 4
6, 7
1
5
8
RF_Out
Name
RF_In
V
GND
GND
V
REF
CC
1
2
3
4
Reference voltage input
RF input
Ground
RF output
Supply voltage
Exposed paddle package ground
Exposed
Paddle
Descriptions
8
7
6
5