GaAs IC SPDT Reflective Switch
Positive Control DC–2.5 GHz
AS125-73
Features
SOT-6
■ Low Insertion Loss (0.4 dB @ 0.9 GHz)
0.074
(1.90 mm REF.)
0.126 (3.20 mm)
0.087 (2.20 mm)
■ Complementary Positive Control Voltages
PIN 6
(0/+3 V to 0/+5 V)
0.071 (1.80 mm)
0.052 (1.30 mm)
PIN 1
INDICATOR
PIN 1
■ Positive Voltage Supply (+3 to +5 V)
■ Low DC Power Consumption
0.020 (0.51 mm)
0.014 (0.350 mm)
0.037 (0.95 mm) REF.
0.012
(0.30 mm)
TYP.
■ Ultra Miniature 6 Lead SOT-6 Package
0.057 (1.45 mm)
0.035 (0.90 mm)
0.006
(0.15 mm)
0.000
5.0˚ ± 1˚
0.014
(0.26 mm)
0.004
Description
(0.00 mm)
The AS125-73 is a GaAs IC FET SPDT reflective switch
in the SOT-6 plastic package for commercial applications.
(0.10 mm)
5.0˚ ± 1˚
For positive operation it requires a fixed positive bias (V )
S
0.022 (0.61 mm)
0.004 (0.10 mm)
0.122 (3.10 mm)
0.106 (2.70 mm)
on the J line and DC blocks on all RF lines. This switch
1
can also be operated with complementary negative
voltage (no V or blocking caps required).The AS125-73
S
provides a low cost solution for IF switching requirements
in dual-band and dual mode subscribers.
Electrical Specifications at 25°C (0, +3 V)
1
2
Parameter
Frequency
Min.
Typ.
Max.
Unit
3
Insertion Loss
DC–0.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–2.5 GHz
0.4
0.45
0.6
0.5
0.6
0.8
1.1
dB
dB
dB
dB
0.9
Isolation
DC–0.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–2.5 GHz
22
17
11
10
25
20
14
13
dB
dB
dB
dB
4
VSWR
DC–1.0 GHz
DC–2.5 GHz
1.2:1
1.5:1
1.3:1
1.7:1
Operating Characteristics at 25°C (0, +3 V)
Parameter
Condition
Frequency
Min.
Typ.
Max.
Unit
5
Switching Characteristics
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
10
20
25
ns
ns
mV
Input Power for 1 dB Compression
0/+3 V
0/+5 V
0.5–2.0 GHz
0.5–2.0 GHz
+21
+28
dBm
dBm
Intermodulation Intercept Point (IP3)
Control Voltages
For Two-tone Input Power +13 dBm
0.5–2.0 GHz
+45
dBm
V
V
V
= 0 to 0.2 V @ 20 µA Max.
= +3 V @ 100 µA Max. to +5 V @ 200 µA Max.
Low
High
= V
± 0.2 V
S
High
1. All measurements made in a 50 Ω 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.
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