Skyworks Solutions, Inc. [781] 376-3000
Fax [781] 376-3100 Email sales@skyworksinc.com www.skyworksinc.com
1
Specifications subject to change without notice. 11/02A
Parameter
Condition
Frequency
Min.
Typ.
Max.
Unit
Switching Characteristics
4
Rise, Fall (10/90% or 90/10% RF)
1
s
On, Off (50% CTL to 90/10% RF)
1
s
Video Feedthru
10
mV
Input Power for 1 dB Compression
0/+3 V
0.9 GHz
18
dBm
0/+5 V
0.9 GHz
27
dBm
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +13 dBm
0/+5 V
0.52.0 GHz
43
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 SPST Switch
Single Positive Control 0.52.5 GHz
Features
Single Positive Control Voltage
+3 V to +5 V Operation
Isolation Can be Tuned to Desired
Frequency
High Isolation (45 dB at 0.9 GHz with
100 pF Bypass Capacitor)
Designed for Use as an LNA Bypass Switch
AS156-73
Description
The AS156-73 is an SPST FET IC switch. The switch
requires external DC blocking capacitors and one
bypass capacitor. Isolation is optimized at 0.9 GHz utilizing
100 pF bypass capacitor and optimized at 1.9 GHz utilizing
a 2.7 pF bypass capacitor. This switch requires a positive
supply and single positive control. The device is mounted
in the SOT-6 package for surface mounting in commercial
switching applications, specifically as an LNA bypass
switch.
Parameter
1
Frequency
2
Min.
Typ.
Max.
Unit
Insertion Loss
3
0.51.4 GHz
0.65
0.75
dB
1.42.0 GHz
0.70
0.80
dB
2.02.5 GHz
0.75
0.90
dB
Isolation
0.51.4 GHz
40
45
dB
1.42.0 GHz
23
28
dB
2.02.5 GHz
10
15
dB
VSWR
0.52.5 GHz
1.3:1
Electrical Specifications at 25C (0, +3 V) C
BYPASS
= 100 pF
0.074
(1.90 mm) REF.
0.071 (1.80 mm)
0.052 (1.30 mm)
0.037 (0.95 mm) REF.
0.122 (3.10 mm)
0.106 (2.70 mm)
0.006
(0.15 mm)
0.000
(0.00 mm)
0.057 (1.45 mm)
0.035 (0.90 mm)
0.020 (0.51 mm)
0.014 (0.350 mm)
0.126 (3.20 mm)
0.087 (2.20 mm)
PIN 6
PIN 1
PIN 1
INDICATOR
0.022 (0.61 mm)
0.004 (0.10 mm)
0.014
(0.26 mm)
0.004
(0.10 mm)
0.012
(0.30 mm)
TYP.
5.0 1
5.0 1
Operating Characteristics at 25C (0, +3 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. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
SOT-6
GaAs IC SPST Switch Single Positive Control 0.52.5 GHz
AS156-73
2
Skyworks Solutions, Inc. [781] 376-3000
Fax [781] 376-3100 Email sales@skyworksinc.com www.skyworksinc.com
Specifications subject to change without notice. 11/02A
0.2
0.5
1.0
1.5
2.0
2.5
3.0
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Frequency (GHz)
dB
Insertion Loss vs. Frequency
0.5
0
1.0
1.5
2.0
3.0
2.5
0.8
1.0
1.2
1.4
1.6
Frequency (GHz)
VSWR
VSWR vs. Frequency
2.7 pF Bypass
Connector
0.5
1.0
1.5
2.0
3.0
2.5
0
10
20
30
40
50
60
Frequency (GHz)
dB
Isolation vs. Frequency
C
BYPASS
= 100 pF
C
BYPASS
= 2.7 pF
8 pF
Typical Performance Data (0, +3 V)
12
3
65
4
J
1
V
1
GND
GND
GND
C
BYPASS
V
S
10 k
C
BL
J
2
C
BL
Characteristic
Value
RF Input Power
2.5 W Max. > 500 MHz,
0/+8 V Control
Supply Voltage, V
S
+8 V
Control Voltage, V
1
-0.2 V, +8 V
Operating Temperature
-40C to +85C
Storage Temperature
-65C to +150C
JC
25C/W
Absolute Maximum Ratings
V
1
J
1
J
2
V
High
Insertion Loss
0
Isolation
Truth Table
Pin Out
V
High
= +3 to +5 V (V
S
= V
High
0.2 V).
DC blocking capacitors (C
BL
) must be supplied externally.
C
BL
= 100 pF for operation >500 MHz.
C
BYPASS
value and exact location determines frequency response of isolation
(see isolation vs. frequency curve as example).
PDF 
ZIP