data sheet
AS218-000: PHEMT GaAs IC High-Power Transfer Switch
0.1–6 GHz
Applications
Pin Out (Top View)
WLAN 802.11a, b, g diversity
l
Ant 2
Features
Operating frequency 0.1–6 GHz
Positive low voltage control (0/3 V operation)
l Low insertion loss
l
Lead (Pb)-free, RoHS-compliant, and Green
l
l
Description
The AS218-000 is a broadband transfer switch designed to
combine T/R and antenna diversity switching functions on a
single IC. The device is designed to handle high power and
maintain high linearity at low control voltages. This low-cost
switch is ideal for Wi-Fi systems and is capable of covering both
the 2.4 and 5 GHz bands.
NEW
Tx
Rx
V1
V2
Ant 1
DC blocking caps required on RF lines for positive voltage operation.
Skyworks Green™ products are RoHS (Restriction
of Hazardous Substances)-compliant, conform to
the EIA/EICTA/JEITA Joint Industry Guide (JIG)
Level A guidelines, are halogen free according to
IEC-61249-2-21, and contain 500 MHz
0/7 V control
Control voltage
-0.2 V, +8 V
Operating temperature
-40 °C to +85 °C
Storage temperature
-65 °C to +150 °C
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: A lthough this device is designed to be as robust as
possible, ESD (Electrostatic Discharge) can damage
this device. This device must be protected at all
times from ESD. Static charges may easily produce
potentials of several kilovolts on the human body or
equipment, which can discharge without detection.
Industry-standard ESD precautions must be employed
at all times.
V1
V 2
Insertion Loss Path
0
1
Ant 1 to Tx, Ant 2 to Rx
1
0
Ant 2 to Tx, Ant 1 to Rx
All other conditions not recommended.
“1” = 3 to 5 V.
“0” = 0 to 0.2 V.
Outline Drawing
0.028
(0.72 mm)
Truth Table
0.012
(0.31 mm)
Absolute Maximum Ratings
0.035
(0.90 mm)
0.027
(0.68 mm)
Rx
Tx
0.032
(0.81 mm)
0.003
(0.08 mm)
Sq. Typ.
0.005
(0.13 mm)
V1
ANT 1
ANT 2
V2
0.024
(0.60 mm)
0.029
(0.73 mm)
0.033
(0.84 mm)
0.009
(0.24 mm)
0.000
0.004
(0.11 mm)
0.000
Chip thickness 0.008 ± 0.001 (0.203 ± 0.025).
Bond pad dimensions: 0.028 (0.07 mm square).
Bond pad metallization: gold.
Backside metallization: none.
Dimensions in inches (mm).
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200145 Rev. F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • October 22, 2008
3
Data Sheet • AS218-000
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4
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
October 22, 2008 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200145 Rev. F
