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PRELIMINARY DATA SHEET
AS202-321, AS202-321LF: PHEMT GaAs IC High-Power SP3T Switch LF-2 GHz
Features
Positive low voltage control (0/2.75 V operation) Low insertion loss (< 0.8 dB @ 2 GHz) High isolation (25 dB at 1 and 2 GHz) Excellent harmonics performance (-65 dBc @ 2.75 V 1 GHz, PIN = 34 dBm) Miniature QFN-12 plastic package PHEMT process Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 C per JEDEC J-STD-020
Functional Block Diagram
ANT V1 V3
RF1
RF3
RF2
Description
The AS202-321 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 (0, 2.75 V)
ZO = 50 , unless otherwise noted
Parameter Insertion loss Ant-RF1, RF2, RF3 Frequency LF-0.5 GHz LF-1.0 GHz LF-2.0 GHz LF-0.5 GHz LF-1.0 GHz LF-2.0 GHz LF-0.5 GHz LF-1.0 GHz LF-2.0 GHz 25 22 22 Min. Typ. 0.55 0.60 0.80 28 25 25 18 18 14 Max. 0.75 0.80 1.10 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
200190 Rev. B * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * September 15, 2006
V2
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PRELIMINARY DATA SHEET * AS202-321, AS202-321LF
Operating Characteristics at 25 C (0, 2.75 V)
ZO = 50 , unless otherwise noted
Parameter 2nd harmonic 3rd harmonic 2nd harmonic 3rd harmonic Gate leakage current Thermal resistance Control voltages VHIGH VLOW -0.25 2.60 Condition 34 dBm In @ 2.75 V 34 dBm In @ 2.75 V 32 dBm In @ 2.75 V 32 dBm In @ 2.75 V 34 dBm In @ 2.75 V 25 0 2.75 0.25 5.00 Frequency 1 GHz 1 GHz 2 GHz 2 GHz Min. Typ. -72 -65 -70 -65 0.03 Max. Unit dBc dBc dBc dBc mA C/W V V
Typical Performance Data (0, 2.75 V, CBL = 47 pF)
ZO = 50 , unless otherwise noted
2.0 1.6 1.2 0 -5 -10 -15
Insertion Loss (dB)
0.8 0.4 0 -0.4 -0.8 -1.2 -1.6 -2.0 0 0.5 1.0 1.5 2.0 2.5 3.0 Ant-RF2 Ant-RF3 Ant-RF1
Isolation (dB)
-20 -25 -30 -35 -40 -45 -50 0 0.5 1.0
Ant-RF3 Ant-RF1
Ant-RF2
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
0 -5 -90
Isolation vs. Frequency
2nd and 3rd Harmonics (dBc)
-80 -70 -60 -50 -40 -30 -20 -10 0 2.0 2.5
2nd Harmonic
Return Loss (dB)
-10 Ant-RF2 -15 Ant-RF3 -20 -25 0 0.5 1.0 1.5 2.0 2.5 3.0 Ant-RF1
3rd Harmonic
3.0
3.5
4.0
4.5
Frequency (GHz)
Control Voltage (V)
Return Loss vs. Frequency
2nd and 3rd Harmonics vs. Control Voltage
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
September 15, 2006 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200190 Rev. B
PRELIMINARY DATA SHEET * AS202-321, AS202-321LF
Pin Out
ANT CBL
Truth Table
V1 VHIGH VLOW
GND
V2 VLOW VHIGH VLOW
V3 VLOW VLOW VHIGH
Ant-RF1 Ins. loss Isolation Isolation
Ant-RF2 Isolation Ins. loss Isolation
Ant-RF3 Isolation Isolation Ins. loss
GND
VLOW
12
11
10
All other conditions not recommended. VLOW = 0-0.2 V. VHIGH = 2.75-5 V.
V3 CBL RF3
9
V1 RF1 CBL N/C
GND
V2
CBL
RF2
LF blocks required. CBL = 47 pF for operation >500 MHz.
1 2 3
4 5 6
8
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
GND
7
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.
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)
0.029 (0.73 mm) Exposed pad 0.009 (0.23 mm) + 0.003 (0.07 mm) - 0.002 (0.05 mm)
0.007 (0.180 mm)
0.030 (0.75 mm) 0.002 (0.05 mm) 0.017 (0.435 mm) Sq. Pin 1 Indicator 0.057 (1.45 mm) Sq. + 0.004 (0.10 mm) - 0.006 (0.15 mm)
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 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.
Recommended Solder Reflow Profiles
Refer to the "Recommended Solder Reflow Profile" Application Note.
Tape and Reel Information
0.0196 (0.50 mm) BSC 0.022 (0.55 mm) 0.004 (0.10 mm)
Refer to the "Discrete Devices and IC Switch/Attenuators Tape and Reel Package Orientation" Application Note.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200190 Rev. B * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * September 15, 2006
3
PRELIMINARY DATA SHEET * AS202-321, AS202-321LF
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Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4
September 15, 2006 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200190 Rev. B

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