DATA SHEET
AS219-321, AS219-321LF: PHEMT GaAs IC High-Linearity 3 V
T/R SP3T Switch 0.1–2.5 GHz
Features
2.6 to 5 V linear operation
G
Harmonics H , H < -70 dBc @ P
2 3
IN
= 34.5 dBm
G
Low Tx insertion loss (0.35 dB @ 0.9 GHz)
G
High Rx isolation (25 dB @ 0.9 GHz)
G
Miniature QFN-12 plastic package
G
PHEMT process
G
Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C
per JEDEC J-STD-020
G
Pin Out (Top View)
C
BL
12
11
GND
10
V
1
Tx
C
BL
N/C
V
2
ANT
GND
C
BL
GND
Rx1
1
2
3
9
8
7
Description
The AS219-321 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 three control inputs. When the control inputs are driven with
the appropriate voltages, a low insertion loss path is provided
from an antenna port to a Tx port, while the other Rx ports have
high attenuation.
4
5
6
DC blocking capacitors (C
BL
) must be supplied externally for positive voltage operation.
C
BL
= 47 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)
Parameter
(1)
Insertion loss
(2)
Ant-Rx
Condition
Frequency
0.1–1.0 GHz
1.0–2.0 GHz
2.0–2.5 GHz
0.1–1.0 GHz
1.0–2.0 GHz
2.0–2.5 GHz
0.1–1.0 GHz
1.0–2.0 GHz
2.0–2.5 GHz
0.1–1.0 GHz
1.0–2.0 GHz
2.0–2.5 GHz
0.1–2.5 GHz
24
20
20
20
14
10
Min.
Typ.
0.5
0.7
0.8
0.35
0.50
0.65
26
25
24
23
16
14
1.1:1
Max.
0.75
0.80
1.10
0.40
0.55
0.70
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Ant-Tx
Isolation
Ant-Rx
Ant-Tx
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
200250 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 30, 2007
Rx2
C
BL
GND
V
3
1
SKYWORKS [ SKYWORKS SOLUTIONS INC. ]
