DATA SHEET
AS156-73, AS156-73LF: GaAs IC SPST Switch
Single Positive Control 0.5–2.5 GHz
Features
Single positive control voltage
Pin Out
VS
●
10 k
●
3 V to 5 V operation
●
Isolation can be tuned to desired frequency
J1
GND
CBL
●
High isolation (45 dB at 0.9 GHz with 100 pF bypass capacitor)
CBYPASS
GND
GND
●
Designed for use as an LNA bypass switch
●
Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C
J2
V1
CBL
per JEDEC J-STD-020
DC blocking capacitors (CBL) must be supplied externally.
CBL = 100 pF for operation >500 MHz.
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 capac-
itor 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.
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
NEW
Electrical Specifications at 25 °C (0, 3 V) CBYPASS = 100 pF
(1)
Parameter
Frequency
Min.
Typ.
Max.
Unit
(2)
Insertion loss
0.5–1.4 GHz
1.4–2.0 GHz
2.0–2.5 GHz
0.65
0.70
0.75
0.75
0.80
0.90
dB
dB
dB
Isolation
0.5–1.4 GHz
1.4–2.0 GHz
2.0–2.5 GHz
40
23
10
45
28
15
dB
dB
dB
VSWR
0.5–2.5 GHz
1.3:1
1. All measurements made in a 50 Ω 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
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