Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
1
Specifications subject to change without notice. 10/02A
PHEMT GaAs IC High Linearity 3 V
T/R SPDT Switch 0.12.5 GHz
Features
+2.7 to +5 V Linear Operation
Harmonics H
2
, H
3
> 70 dBc @
P
IN
= 34.5 dBm
Low T
X
Insertion Loss (0.25 dB @ 0.9 GHz)
High R
X
Isolation (35 dB @ 0.9 GHz)
Applications
T/R Switch for Handset Applications
Outline Drawing
AS217-000
Description
The AS217-000 is a PHEMT GaAs FET IC high linearity
SPDT switch. This switch has been designed for use
where extremely high linearity, low control voltage, high
R
X
isolation and low T
X
insertion loss. It can be
controlled with positive, negative or a combination of both
voltages. Some standard implementations include
antenna changeover, T/R and diversity switching over
3 W. The AS217-000 switch can be used in many analog
and digital wireless communication systems including
cellular, GSM and DECT applications.
GND
R
X
T
X
V
1
ANT
V
2
0.008 (0.215 mm)
0.020 (0.507 mm)
0.026 (0.653 mm)
0.029 (0.730 mm)
0.026 (0.653 mm)
0.009 (0.235 mm)
0.000
0.003 (0.078 mm)
0.020 (0.505 mm)
0.017 (0.428 mm)
0.016 (0.405 mm)
0.0030 (0.077 mm)
0.000
0.018 (0.464 mm)
0.015 (0.392 mm)
Parameter
1
Condition
Frequency
Min.
Typ.
Max.
Unit
Insertion Loss
2
Ant-R
X
0.11.0 GHz
0.20
0.30
0.35
dB
1.02.0 GHz
0.25
0.35
0.50
dB
2.02.5 GHz
0.40
0.50
0.65
dB
Ant-T
X
0.11.0 GHz
0.10
0.25
0.30
dB
1.02.0 GHz
0.20
0.30
0.45
dB
2.02.5 GHz
0.35
0.40
0.50
dB
Isolation
Ant-R
X
0.11.0 GHz
34
36
dB
1.02.0 GHz
25
30
dB
2.02.5 GHz
20
24
dB
Ant-T
X
0.11.0 GHz
20
27
dB
1.02.0 GHz
14
17
dB
2.02.5 GHz
10
14
dB
VSWR
3
0.12.5 GHz
1.2:1
1.3:1
dB
Electrical Specifications at 25C (0, +3 V)
Preliminary
Dimension in inches (mm). Thickness: 0.008 (0.200 mm) 0.001 (0.025 mm).
Tolerance: 0.001 (0.025 mm).
PHEMT GaAs IC High Linearity 3 V T/R SPDT Switch 0.12.5 GHz
AS217-000
2
Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
Specifications subject to change without notice. 10/02A
Typical Performance Data (0, +3 V)
Insertion Loss (dB)
Frequency (GHz)
Insertion Loss vs. Frequency
0
0.5
1.0
1.5
2.0
2.5
3.0
-1.0
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
Ant-T
X
Ant-R
X
VSWR
Frequency (GHz)
VSWR vs. Frequency
1.0
1.1
1.2
1.3
1.4
1.5
1.6
0.5
1.0
1.5
2.0
2.5
3.0
T
X
-S
11
T
X
-S
22
R
X
-S
11
R
X
-S
22
Isolation (dB)
Frequency (GHz)
Isolation vs. Frequency
0
0.5
1.0
1.5
2.0
2.5
3.0
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
Ant-T
X
Ant-R
X
T
X
-R
X
Characteristic
Value
RF Input Power
4 W > 500 MHz
0/+6 V Control
Control Voltage
-0.2 V, +6 V
Operating Temperature
-40C to +85C
Storage Temperature
-65C to +150C
Absolute Maximum Ratings
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
+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 SPDT Switch 0.12.5 GHz
AS217-000
Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
3
Specifications subject to change without notice. 10/02A
V
1
V
2
AntR
X
AntT
X
V
High
0
Isolation
Insertion Loss
0
V
High
Insertion Loss
Isolation
Truth Table
V
High
= +2.7 to +5 V.
Pin Out
GND
R
X
T
X
V
1
ANT
V
2
Note: Bond pad metalization: gold.
Bond pad dimensions: 0.003 (0.075 mm) x 0.003 (0.075 mm).
Back side metalization: none.
See application note, Handling GaAs MMIC Die.
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