DATA SHEET
AS172-73, AS172-73LF: PHEMT GaAs IC Transfer Switch
300 kHz–2 GHz
Features
High linearity (50 dBm IP3 @ 0.9 GHz) @ 3 V
●
Low insertion loss (0.4 dB @ 0.9 GHz)
●
Isolation (20 dB @ 0.9 GHz)
●
Simultaneous T/R switching
●
Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C
per JEDEC J-STD-020
●
Pin Out
Positive Operation
External
Antenna
J
2
C
BL
V
2
Tx
C
BL
Rx
V
1
C
BL
3
C
BL
10 kΩ
V
S
DC blocking capacitors (C
BL
) and biasing resistor must be supplied externally for positive
voltage operation.
C
BL
= 100 pF for operation >500 MHz.
J
1
Internal
Antenna
4
1
2
6
5
Description
The AS172-73 is a PHEMT GaAs IC 4 port switch designed to
combine T/R and antenna changeover switching capability within
one device. This switch has two controls and is ideal for
applications requiring low power consumption. The AS172-73
has excellent performance to 2 GHz, making it suitable for
dual-band handset designs.
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
Electrical Specifications at 25 °C (0, 3 V)
Tx–J
1
or Rx–J
1
Parameter
(1)
Insertion Loss
(2)
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–1.0 GHz
300 kHz–2.0 GHz
23
16
11
Min.
Typ.
0.30
0.40
0.95
25
18
13
1.1:1
1.4:1
Max.
0.4
0.5
1.2
Unit
dB
dB
dB
dB
dB
dB
Isolation
VSWR
(3)
1. All measurements made in a 50
Ω
system, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/°C.
3. Insertion loss state.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200173 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • December 12, 2005
1
SKYWORKS [ SKYWORKS SOLUTIONS INC. ]
