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)
20
ns
On, Off (50% CTL to 90/10% RF)
40
ns
Video Feedthru
50
mV
Input Power for 1 dB Compression (T
X
)
0.52.0 GHz
+33
dBm
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +0 dBm
0.52.0 GHz
+45
dBm
Control Voltages
V
Low
= 0 to -0.2 V @ 20 A Max.
V
High
= -5 V @ 25 A to -8 V @ 100 A Max.
GaAs IC Transfer Switch DC2 GHz
Features
High Linearity (+45 dBm IP3 @ 0.9 GHz)
Small MSOP-8 Plastic Package
Low Insertion Loss (0.4 dB @ 0.9 GHz)
Simultaneous T/R Switching
AS127-59
Description
The AS127-59 is a 4 port switch designed to combine T/R
and antenna changeover switching capability within one
device. This switch has two 5 V controls and is ideal for
applications requiring low power consumption. The
AS127-59 has excellent performance to 2 GHz making it
suitable for dual-band handset designs.
Parameter
1
Frequency
2
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
Insertion Loss
3
DC0.5 GHz
0.35
0.5
0.5
0.7
dB
DC1.0 GHz
0.45
0.7
0.6
0.9
dB
DC2.0 GHz
0.7
1.0
0.85
1.3
dB
Isolation
DC0.5 GHz
20
25
25
28
dB
DC1.0 GHz
13
15
17
20
dB
DC2.0 GHz
10
13
14
16
dB
VSWR
4
DC1.0 GHz
1.2:1
1.5:1
1.2:1
1.5:1
DC2.0 GHz
1.3:1
1.8:1
1.3:1
1.8:1
Electrical Specifications at 25C (0, -5 V)
0.012 (0.30 mm)
PIN 1
PIN 1
INDICATOR
+ 0.006 (0.15 mm)
7.0
TYP.
0.038 (0.95 mm)
0.030 (0.75 mm)
0.017
(0.43 mm)
8.0
MAX.
0.028 (0.70 mm)
0.016 (0.40 mm)
0.007 (0.18 mm)
0.005 (0.12 mm)
0.006 (0.15 mm)
0.002 (0.05 mm)
- 0.002 (0.05 mm)
0.0256 (0.65 mm) TYP.
0.118 (3.00 mm)
0.004 (0.1 mm)
SQ.
0.193 (4.90 mm)
REF.
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.
T
X
J
2
or R
X
J
2
T
X
J
1
or R
X
J
1
MSOP-8
GaAs IC Transfer Switch DC2 GHz
AS127-59
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
0.2
0
0.5
1.0
1.5
2.0
0.4
0.6
0.8
1.0
1.2
dB
Frequency (GHz)
Insertion Loss vs. Frequency
T
X
, R
X
J
2
T
X
, R
X
J
1
1.0
0
0.5
1.0
1.5
2.0
1.1
1.2
1.3
1.4
1.5
Frequency (GHz)
VSWR vs. Frequency
0
10
0
0.5
1.0
1.5
2.0
20
30
40
50
dB
Frequency (GHz)
Isolation vs. Frequency
T
X
, R
X
J
2
T
X
, R
X
J
1
Typical Performance Data (0, -5 V)
12
3
4
87
6
5
GND
J
1
GND
T
X
V
1
V
2
J
2
V
S
V
S
10 k
10 k
C
BL
C
BL
C
BL
R
X
C
BL
Characteristic
Value
RF Input Power
4 W > 0.5 GHz,
0/-5 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
V
1
V
2
T
X
J
2,
R
X
J
1
T
X
J
1,
R
X
J
2
0
-5
Insertion Loss
Isolation
-5
0
Isolation
Insertion Loss
Truth Table
Pin Out
V
High
= +5 to +8 V (V
S
= V
High
0.2 V).
External components shown are for positive voltage operation only.
C
BL
= 100 pF for operation >500 MHz.
Negative Operation
Positive Operation
V
1
V
2
T
X
J
2,
R
X
J
1
T
X
J
1,
R
X
J
2
V
High
0
Insertion Loss
Isolation
0
V
High
Isolation
Insertion Loss
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