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DATA SHEET
AS156-73, AS156-73LF: GaAs IC SPST Switch Single Positive Control 0.5-2.5 GHz
Features
Single positive control voltage 3 V to 5 V operation Isolation can be tuned to desired frequency High isolation (45 dB at 0.9 GHz with 100 pF bypass capacitor) Designed for use as an LNA bypass switch Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 C per JEDEC J-STD-020
Pin Out
VS 10 k J1 GND CBYPASS GND V1
1
6
CBL
2
GND J2
5
3
4
CBL
Description
The AS156-73 is an SPST FET IC switch. The switch requires external DC blocking capacitors and one bypass capacitor. Isolation is optimized at 0.9 GHz utilizing a 100 pF bypass capacitor and optimized at 1.9 GHz utilizing a 2.7 pF bypass capacitor. This switch requires a positive supply and single positive control. The device is mounted in the SOT-6 package for surface mounting in commercial switching applications, specifically as an LNA bypass switch.
DC blocking capacitors (CBL) must be supplied externally. CBL = 100 pF for operation >500 MHz.
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances)-compliant packaging.
Electrical Specifications at 25 C (0, 3 V) CBYPASS = 100 pF
Parameter(1) Insertion loss(2) Frequency 0.5-1.4 GHz 1.4-2.0 GHz 2.0-2.5 GHz 0.5-1.4 GHz 1.4-2.0 GHz 2.0-2.5 GHz 0.5-2.5 GHz 40 23 10 Min. Typ. 0.65 0.70 0.75 45 28 15 1.3:1 Max. 0.75 0.80 0.90 Unit dB dB dB dB dB dB
Isolation
VSWR
1. All measurements made in a 50 system, unless otherwise specified. 2. Insertion loss changes by 0.003 dB/C.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200171 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * December 12, 2005
1
DATA SHEET * AS156-73, AS156-73LF
Operating Characteristics at 25 C (0, 3 V)
Parameter Switching characteristics Rise, fall On, off Video feedthru Input power for 1 dB compression Intermodulation intercept point (IP3) Thermal resistance Control voltages VLOW = 0 to 0.2 V @ 20 A max. VHIGH = 3 V @ 100 A max. to 5 V @ 200 A max. VS = VHIGH 0.2 V Condition 10/90% or 90/10% RF 50% CTL to 90/10% RF TRISE = 1 ns, BW = 500 MHz VCTL = 0/3 V VCTL = 0/5 V For two-tone input power 13 dBm VCTL = 0/5 V 0.9 GHz 0.9 GHz 0.5-2 GHz Frequency Min. Typ. 1 1 10 18 27 43 25 Max. Unit s s mV dBm dBm dBm C/W
Typical Performance Data (0, 3 V)
1.0 0.9 0.8 0.7 40 60 50 CBYPASS = 100 pF 8 pF
dB
dB
0.6 0.5
30 CBYPASS = 2.7 pF 20
0.4 0.3 0.2 0.5 1.0 1.5 2.0 2.5 3.0 10 0 0.5 1.0 1.5 2.0 2.5 3.0
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
1.6
Isolation vs. Frequency
CBYPASS value and exact location determine frequency response of isolation (see isolation vs. frequency curve as example).
1.4
VSWR
2.7 pF Bypass Connector 1.2
1.0
0.8 0 0.5 1.0 1.5 2.0 2.5 3.0
Frequency (GHz)
VSWR vs. Frequency
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
December 12, 2005 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200171 Rev. C
DATA SHEET * AS156-73, AS156-73LF
Absolute Maximum Ratings
Characteristic RF input power Supply voltage, VS Control voltage, V1 Operating temperature Storage temperature Value 2.5 W max. > 500 MHz, 0/8 V control 8V -0.2 V, +8 V -40 C to +85 C -65 C to +150 C
Truth Table
V1 VHIGH 0
VHIGH = 3 to 5 V (VS = VHIGH 0.2 V).
J1-J2 Insertion loss Isolation
SOT-6
0.074 (1.90 mm) Ref. Pin 6 Pin 1 Indicator Pin 1 0.020 (0.51 mm) 0.014 (0.350 mm) 0.057 (1.45 mm) 0.035 (0.90 mm) 0.126 (3.20 mm) 0.087 (2.20 mm) 0.071 (1.80 mm) 0.052 (1.30 mm)
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 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.
0.037 (0.95 mm) Ref. 0.012 (0.30 mm) Typ. 0.014 (0.26 mm) 0.004 (0.10 mm)
0.006 (0.15 mm) 0.000 (0.00 mm)
5.0 1
5.0 1
Recommended Solder Reflow Profiles
Refer to the "Recommended Solder Reflow Profile" Application Note.
0.122 (3.10 mm) 0.106 (2.70 mm)
0.022 (0.61 mm) 0.004 (0.10 mm)
Tape and Reel Information
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
200171 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * December 12, 2005
3
DATA SHEET * AS156-73, AS156-73LF
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Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4
December 12, 2005 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200171 Rev. C

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