Alpha Industries, Inc.
[781] 935-5150
Fax
[617] 824-4579
Email
sales@alphaind.com
www.alphaind.com
Specifications subject to change without notice. 3/99A
1
Parameter
Condition
Frequency
Min.
Typ.
60
100
50
+41
Max.
Unit
ns
ns
mV
dBm
Switching Characteristics
5
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
Two-tone Input Power +10 dBm
V
Low
= 0 to 0.2 V @ 20 μA Max.
V
High
= +5 V @ 200 μA Max. to +7 V @ 500 μA Max.
V
S
= V
High
± 0.2 V
Intermodulation Intercept Point (IP3)
Control Voltages
0.5–2.0 GHz
GaAs IC High Isolation Positive Control
SPDT Switch DC–2.5 GHz
Features
I
Positive Voltage Control
I
High Isolation (50 dB @ 0.9 GHz
and 1.9 GHz)
I
Low DC Power Consumption
I
Base Station Synthesizer Switch
SOIC-14
AS148-24
Description
GaAs FET IC SPDT switch packaged in an SOIC-14
plastic package for low cost commercial applications.Ideal
building block for base station dual band applications
where synthesizer isolation is critical.Use in conjunction
with the AS123-12 SPST switch to meet GSM synthesizer
isolation requirement.
Parameter
1
Frequency
2
DC–1.0 GHz
DC–2.0 GHz
DC–2.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–2.5 GHz
DC–2.0 GHz
DC–2.5 GHz
Min.
Typ.
0.6
0.8
1.2
50
50
42
1.3:1
1.5:1
Max.
0.9
1.1
1.4
Unit
dB
dB
dB
dB
dB
dB
Insertion Loss
3
Isolation
44
45
32
VSWR
4
1.5:1
1.8:1
Electrical Specifications at 25°C (0, +5 V)
PIN 14
0.050
(1.27 mm) BSC
PIN 1
PIN 1
INDICATOR
0.158 (4.01 mm)
0.150 (3.81 mm)
0.050 (1.27 mm)
0.016 (0.40 mm)
0.244
(6.20 mm)
0.228
(5.80 mm)
0.020 (0.51 mm)
0.013 (0.33 mm)
0.344 (8.75 mm)
0.337 (8.55 mm)
0.068
(1.73 mm) MAX.
0.010 (0.25 mm)
0.004 (0.10 mm)
0.158 (4.00 mm)
0.150 (3.80 mm)
0.049 (1.24 mm)
0.016 (0.41 mm)
0.016 MAX.
(0.41 mm)
x 45
CHAMFER
8 MAX.
0.0098 (0.25 mm)
0.0075 (0.19 mm)
Operating Characteristics at 25°C (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.