GaAs IC SPDT Reflective Switch DC鈥?.5 GHz
AS239-12
Features
s
Low Insertion Loss (0.4 dB @ 1 GHz)
s
High Isolation (35 dB @ 1 GHz)
s
General Purpose Switching
PIN 1
INDICATOR
0.244 (6.20 mm)
0.228 (5.80 mm)
SOIC-8
PIN 8
0.050 (1.27 mm) BSC
Description
The AS239-12 is a low cost IC FET SPDT reflective switch
in a plastic SOIC-8 package for commercial low cost, low
power applications. The switch operates with -5 V, 0 V or
operates with +5 V, 0 V when device is 鈥渇loated鈥?as shown
on following page. This general purpose SPDT switch is
used in many commercial telecommunication applications.
PIN 1
0.068
(1.73 mm) MAX.
0.020 (0.51 mm) MAX.
0.049
(1.24 mm)
0.016
(0.41 mm)
0.016 MAX.
(0.41 mm) x
45藲 CHAMFER
0.197 (5.00 mm)
0.189 (4.80 mm)
0.010 (0.25 mm)
0.004 (0.10 mm)
0.158 (4.00 mm)
0.150 (3.80 mm)
0.010 (0.25 mm)
0.007 (0.17 mm)
8藲
MAX.
Electrical Specifications at 25擄C (0, -5 V)
Parameter
1
Insertion
Loss
3
Frequency
2
DC鈥?.1
DC鈥?.5
DC鈥?.0
DC鈥?.0
DC鈥?.5
DC鈥?.1
DC鈥?.5
DC鈥?.0
DC鈥?.0
DC鈥?.5
GHz
GHz
GHz
GHz
GHz
GHz
GHz
GHz
GHz
GHz
52
40
30
22
17
Min.
Typ.
0.3
0.3
0.4
0.5
0.7
56
45
35
24
20
1.2:1
1.5:1
Max.
0.6
0.6
0.7
0.8
0.9
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Isolation
VSWR
4
DC鈥?.0 GHz
DC鈥?.5 GHz
Operating Characteristics at 25擄C (0, -5 V)
Parameter
Switching Characteristics
5
Condition
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
0.5鈥?.0 GHz
0.05 GHz
For Two-tone Input Power +5 dBm
0.5鈥?.0 GHz
0.05 GHz
Frequency
Min.
Typ.
8
30
25
+27
+21
+46
+40
Max.
Unit
ns
ns
mV
dBm
dBm
dBm
dBm
Input Power for 1 dB Compression
Intermodulation Intercept Point (IP3)
Control Voltages
V
Low
= 0 to -0.2 V @ 20 碌A(chǔ) Max.
V
High
= -5 V @ 20 碌A(chǔ) to -7 V @ 200 碌A(chǔ) Max.
1. All measurements made in a 50
鈩?/div>
system, unless otherwise specified.
2. DC = 300 kHz.
3. Insertion loss changes by 0.003 dB/擄C.
4. Insertion loss state.
5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
Alpha Industries, Inc.
[781] 935-5150
鈥?/div>
Fax
[617] 824-4579
鈥?/div>
Email
sales@alphaind.com
鈥?/div>
www.alphaind.com
Specifications subject to change without notice. 3/99A
1
1
2
