Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
1
Specifications subject to change without notice. 8/02A
PHEMT GaAs IC High Linearity 3 V
T/R SP3T Switch 0.12.5 GHz
Features
+2.6 to +5 V Linear Operation
Harmonics H
2
, H
3
> 70 dBc @
P
IN
= 34.5 dBm
Low T
X
Insertion Loss (0.35 dB @ 0.9 GHz)
High R
X
Isolation (25 dB @ 0.9 GHz)
Miniature MLP-12 Plastic Package
PHEMT Process
AS219-321
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
T
X
/R
X
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 a T
X
port, while the other R
X
ports have
high attenuation.
0.008 (0.20 mm)
SEATING PLANE
0.118 (3.00 mm)
PIN 1
INDICATOR
PIN 1 INDICATOR
0.118
(3.00 mm)
0.001
(0.02 mm)
0.030
(0.75 mm)
0.002
(0.05 mm)
EXPOSED PAD
0.029
(0.73 mm)
0.017
(0.435 mm) SQ.
0.007
(0.180 mm)
0.0196
(0.50 mm) BSC
0.057 (1.45 mm) SQ.
+ 0.004 (0.10 mm)
- 0.006 (0.15 mm)
0.022 (0.55 mm)
0.004 (0.10 mm)
0.009 (0.23 mm)
+ 0.003 (0.07 mm)
- 0.002 (0.05 mm)
MLP-12
Parameter
1
Condition
Frequency
Min.
Typ.
Max.
Unit
Insertion Loss
2
Ant-R
X
0.11.0 GHz
0.50
0.75
dB
1.02.0 GHz
0.70
0.80
dB
2.02.5 GHz
0.80
1.10
dB
Ant-T
X
0.11.0 GHz
0.20
0.35
0.40
dB
1.02.0 GHz
0.40
0.50
0.55
dB
2.02.5 GHz
0.55
0.65
0.70
dB
Isolation
Ant-R
X
0.11.0 GHz
24
26
dB
1.02.0 GHz
20
25
dB
2.02.5 GHz
20
24
dB
Ant-T
X
0.11.0 GHz
20
23
dB
1.02.0 GHz
14
16
dB
2.02.5 GHz
10
14
dB
VSWR
3
0.12.5 GHz
1.1:1
dB
Electrical Specifications at 25C (0, +3 V)
Parameter
Condition
Frequency
Min.
Typ.
Max.
Unit
Switching Characteristics
4
Rise, Fall (10/90% or 90/10% RF)
60
ns
On, Off (50% CTL to 90/10% RF)
100
ns
Video Feedthru
50
mV
Input Power for -0.1 dB Compression
0/+3 V
0.9 GHz
+35
dBm
Harmonics H
2
, H
3
(Transmit State)
P
IN
= 34.5 dBm
0.9 GHz, 1.8 GHz
+70
dBc
Control Voltages
V
Low
= 0 to 0.2 V @ 20 A Max.
V
High
= +2.7 V @ 100 A Max. to +5 V @ 200 A Max.
Operating Characteristics at 25C (0, +3 V)
1. All measurements made in a 50
system, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/C.
3. Insertion loss state.
4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
PHEMT GaAs IC High Linearity 3 V T/R SP3T Switch 0.12.5 GHz
AS219-321
2
Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
Specifications subject to change without notice. 8/02A
V
1
V
2
V
3
Ant-T
X
Ant-R
X1
Ant-R
X2
V
High
V
Low
V
Low
Ins. Loss
Isolation
Isolation
V
Low
V
High
V
Low
Isolation
Ins. Loss
Isolation
V
Low
V
Low
V
High
Isolation
Isolation
Ins. Loss
Truth Table
V
Low
= 00.2 V.
V
High
= 2.755 V.
Typical Performance Data
Insertion Loss (dB)
Frequency (GHz)
Insertion Loss vs. Frequency
-2.0
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0
0
0.5
1.0
1.5
2.0
2.5
Ant-R
X2
Ant-R
X1
Ant-T
X
Isolation (dB)
Frequency (GHz)
Isolation vs. Frequency
0
0.5
1.0
1.5
2.0
2.5
-50
-45
-40
-35
-30
-25
-20
-15
-10
Ant-R
X1
Ant-T
X
Ant-R
X2
Return Loss (dB)
Frequency (GHz)
Return Loss vs. Frequency
0
0.5
1.0
1.5
2.0
2.5
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
Ant-R
X1
Ant-R
X2
Ant-T
X
1.8 GHz Harmonics vs. Control Voltages
Control Voltages (V)
Harmonics (dBc)
60
65
70
75
80
85
90
95
2.6
3.0
3.4
3.8
4.2
4.6
5.0
2nd Harmonic
3rd Harmonic
0.9 GHz Harmonics vs. Control Voltages
60
65
70
75
80
85
90
95
2.6
3.0
3.4
3.8
4.2
4.6
5.0
Control Voltages (V)
Harmonics (dBc)
2nd Harmonic
3rd Harmonic
PHEMT GaAs IC High Linearity 3 V T/R SP3T Switch 0.12.5 GHz
AS219-321
Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
3
Specifications subject to change without notice. 8/02A
Pin Out (Top View)
V
1
T
X
GND
V
3
R
X2
GND
ANT
V
2
N/C
GND
R
X1
GND
C
BL
C
BL
C
BL
C
BL
123
4
5
6
12
11
10
987
Characteristic
Value
RF Input Power
6 W > 500 MHz
0/+7 V Control
Control Voltage
-0.2 V, +8 V
Operating Temperature
-40C to +85C
Storage Temperature
-65C to +150C
JC
25C/W
Absolute Maximum Ratings
DC blocking capacitors (C
BL
) must be supplied externally for
positive voltage operation.
C
BL
= 47 pF for operation >500 MHz.
PDF 
ZIP