DATA SHEET
AS227-321LF: PHEMT GaAs IC High-Power
SP3T Switch 300 kHz–2 GHz
Features
●
●
●
●
●
●
●
Functional Block Diagram
ANT
V
1
V
3
Positive low voltage control (0/2.75 V operation)
Low insertion loss (0.5 dB typ. @ 1 GHz)
High isolation (26 dB typ. @ 1 GHz)
Excellent IIP3 (63 dBm @ 2.75 V, 27 dBm/tone)
Miniature QFN-12 plastic package
PHEMT process
Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C
per JEDEC J-STD-020
RF1
RF3
RF2
Description
The AS227-321LF is a PHEMT GaAs IC SP3T antenna switch
operating in the 900 MHz and 1800 MHz frequency bands.
Switching between the antenna and Tx/Rx ports is accomplished
with 3 control inputs. When the control inputs are driven with the
appropriate voltages, a low insertion loss path is provided from
an antenna port to an Rx or Tx port, while the other ports have
high attenuation.
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
Electrical Specifications at 25 °C
V
CTL
= 0/2.75 V, Z
O
= 50
Ω,
unless otherwise noted
Parameter
Insertion loss
Ant-RF1, RF2, RF3
Frequency
300 kHz–0.5 GHz
300 kHz–1.0 GHz
300 kHz–2.0 GHz
300 kHz–0.5 GHz
300 kHz–1.0 GHz
300 kHz–2.0 GHz
300 kHz–0.5 GHz
300 kHz–1.0 GHz
300 kHz–2.0 GHz
30
24
18
Min.
Typ.
0.45
0.50
0.70
32
26
20
18
18
14
Max.
0.6
0.7
0.9
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
Isolation
Ant-RF1, RF2, RF3
Return loss
Ant-RF1, RF2, RF3
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200120 Rev. D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 15, 2006
V
2
1
DATA SHEET • AS227-321LF
Pin Out (Top View)
ANT
C
BL
Truth Table
V
1
V
HIGH
GND
V
2
V
LOW
V
HIGH
V
LOW
V
3
V
LOW
V
LOW
V
HIGH
Ant-RF1
Ins. loss
Isolation
Isolation
Ant-RF2
Isolation
Ins. loss
Isolation
Ant-RF3
Isolation
Isolation
Ins. loss
GND
V
Low
V
LOW
12
11
10
All other conditions not recommended.
V
LOW
= 0–0.2 V.
V
HIGH
= 2.75–5 V.
V
3
C
BL
RF3
9
V
1
RF1
C
BL
N/C
GND
V
2
C
BL
RF2
DC blocks required. C
BL
= 47 pF for operation >500 MHz.
0.029
(0.73 mm)
Absolute Maximum Ratings
Characteristic
RF input power
Control voltage
Operating temperature
Storage temperature
Value
4 W > 0.5 GHz
0/6 V control
6V
-40 °C to +85 °C
-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:
Although 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 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.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200120 Rev. D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 15, 2006
1
2
3
4
5
6
8
QFN-12
0.118 (3.00 mm)
Pin 1
Indicator
0.118
(3.00 mm)
0.008 (0.20 mm)
Seating Plane
0.001
(0.02 mm)
GND
7
0.007
(0.180 mm)
0.030
(0.75 mm)
± 0.002
(0.05 mm)
0.017
(0.435 mm) Sq.
Pin 1 Indicator
Exposed pad
0.009 (0.23 mm)
+ 0.003 (0.07 mm)
- 0.002 (0.05 mm)
0.0196
(0.50 mm) BSC
0.057 (1.45 mm) Sq.
+ 0.004 (0.10 mm)
- 0.006 (0.15 mm)
0.022 (0.55 mm)
± 0.004 (0.10 mm)
3
DATA SHEET • AS227-321LF
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information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to
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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
4
August 15, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200120 Rev. D
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