Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
1
Specifications subject to change without notice. 3/99A
Parameter
Condition
Frequency
Min.
Typ.
Max.
Unit
Switching Characteristics
5
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 1 dB Compression
0.9 GHz
+35
dBm
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +10 dBm
0.9 GHz
+55
dBm
Control Voltages
V
Low
= 0 to 0.2 V @ 20 A Max.
V
High =
+3 V @ 100 A Max. to +5 V @ 200 A Max.
V
S
= V
High
0.2 V
GaAs IC High Power SPDT Switch
Positive Control DC2 GHz
Features
High Linearity (55 dBm IP3 @ 0.9 GHz)
Low Insertion Loss (0.4 dB @ 0.9 GHz)
High Isolation (35 dB @ 0.9 GHz)
Low DC Power Consumption
Positive 3 V to 5 V Control Voltages
SOIC-8
AS277-12
Description
The AS277-12 is an IC FET SPDT switch in an SOIC-8
plastic package. It is a reflective switch designed for use
where extremely high linearity and low insertion loss are
required. It is controlled with positive voltage eliminating
the need for negative voltage. Some standard
implementations include antenna changeover, T/R and
diversity switching over 2 W. The AS277-12 switch can be
used in many analog and digital wireless communication
systems including cellular, GSM and DECT applications.
Parameter
1
Frequency
2
Min.
Typ.
Max.
Unit
Insertion Loss
3
DC1.0 GHz
0.4
0.50
dB
DC2.0 GHz
0.6
0.75
dB
Isolation
DC1.0 GHz
30
33
dB
DC2.0 GHz
16
18
dB
VSWR
4
DC1.0 GHz
1.1:1
1.2:1
DC2.0 GHz
1.3:1
1.4:1
Electrical Specifications at 25C (0, +5 V)
0.049
(1.24 mm)
0.016
(0.41 mm)
0.016 MAX.
(0.41 mm) x
45 CHAMFER
PIN 1
0.197 (5.00 mm)
0.189 (4.80 mm)
0.068
(1.73 mm) MAX.
0.010 (0.25 mm)
0.004 (0.10 mm)
0.010 (0.25 mm)
0.007 (0.17 mm)
0.158 (4.00 mm)
0.150 (3.80 mm)
8
MAX.
0.020 (0.51 mm) MAX.
0.244 (6.20 mm)
0.228 (5.80 mm)
0.050 (1.27 mm) BSC
PIN 8
PIN 1
INDICATOR
Operating Characteristics at 25C (0, +5 V)
1. All measurements made in a 50
system, unless otherwise specified.
2. DC = 300 kHz.
3. Insertion loss changes by 0.003 dB/C.
4. Insertion loss state.
5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
GaAs IC High Power SPDT Switch Positive Control DC2 GHz
AS277-12
2
Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
Specifications subject to change without notice. 3/99A
0.7
0.6
0.5
0.4
0.3
0.2
Frequency (GHz)
Insertion Loss vs. Frequency
dB
DC
1.0
2.0
85C
25C
0C
2.0
1.8
1.6
1.4
1.2
1.0
Frequency (GHz)
VSWR vs. Frequency
DC
1.0
2.0
60
10
Frequency (GHz)
Isolation vs. Frequency
dB
DC
1.0
2.0
20
30
40
50
Typical Performance Data (0, +5 V)
12
3
4
87
6
5
J
2
J
1
V
1
V
S
V
2
GND
GND
J
3
C
BL
C
BL
C
BL
Characteristic
Value
RF Input Power
6 W Max. > 0.9 GHz,
0/+5 V Control
Supply Voltage
+8 V
Control Voltage
-0.2 V, +8 V
Operating Temperature
-40C to +85C
Storage Temperature
-65C to +150C
JC
85C/W
Absolute Maximum Ratings
Pin Out
DC blocking capacitors, C
BL
must be supplied externally.
C
BL
= 100 pF for operation >500 MHz.
V
1
V
2
J
1
J
2
J
1
J
3
V
High
0
Isolation
Insertion Loss
0
V
High
Insertion Loss
Isolation
Truth Table
V
High
= +3 to +5 V (V
S
= V
High
0.2 V).
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