PRELIMINARY DATA SHEET
AS179-000: GaAs SPDT Switch 300 kHz–3 GHz
Medium Power
Applications
General purpose medium power switch in telecommunication
applications
●
Transceiver transmit-receive switch in 802.11b/g WLAN,
etc., systems
●
Functional Block Diagram
C
BL
RF1
J
2
Ground
C
BL
V
1
J
1
Control
Voltage 1
C
BL
RF
Common
Features
Broadband: 300 kHz–3 GHz
●
Low insertion loss: 0.3 dB @ 900 MHz
●
High isolation: 25 dB @ 900 MHz
●
P
1 dB
: +30 dBm @ 3 V control voltage
●
IP3: +43 dBm @ 3 V control voltage
●
Low DC power consumption
●
100% RF tested in die form
●
Lead (Pb)-free
●
ESD class 0
●
RF2
J
3
V
2
Control
Voltage 2
DC blocks required on all RF ports for positive control voltage operation.
Absolute Maximum Ratings
Characteristic
RF input power (V
CTL
0 V/7 V)
Value
6 W, f > 500 MHz
2 W, 100 > f > 500 MHz
315 mW, f = 300 kHz
(1)
-0.2 V
≤
V
C
≤
8 V
-40 °C to +85 °C
-40 °C to +150 °C
Control voltage range
Operating temperature range
Storage temperature range
Description
The AS179-000 is a monolithic SPDT switch fabricated
using Skyworks proprietary GaAs PHEMTs as the switching
elements. This wideband switch operates with RF signals from
300 kHz–3 GHz. The RF signal paths within the AS179-000 are
bilateral. The J
1
and J
2
RF input/output terminals are reflective.
Switching is controlled via a pair of high-impedance control
voltage inputs. Depending upon the logic voltage level applied
to the control voltage pins, the common RF pin (J
1
) is con-
nected to one of two switched RF pins (J
2
or J
3
) via a low
insertion loss path, while the path between the RF common
and the other RF pin is in its high isolation state.
DC power consumption is very low, 100 µA nominal with control
voltage of 3 V. The switch can operate over the temperature
range of -40° C to 85° 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.
1. Derate linearly for 300 kHz < f < 100 MHz.
CAUTION:
Although this device is designed to be as robust as
possible, Electrostatic Discharge (ESD) 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.
NEW
Skyworks offers lead (Pb)-free “environmentally
friendly” packaging that is RoHS compliant
(European Parliament for the Restriction of
Hazardous Substances).
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200078 Rev. A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 17, 2005
1
SKYWORKS [ SKYWORKS SOLUTIONS INC. ]
