PHEMT GaAs IC High Linearity 3 V
Control SPDT Switch 0.1鈥? GHz
AS191-73
Features
s
+2.5 to +5 V Linear Operation
s
Harmonics H
2
, H
3
> 65 dBc @
P
IN
= 34.5 dBm
s
Low Insertion Loss (0.5 dB @ 0.9 GHz)
s
High Isolation (27 dB @ 0.9 GHz)
s
Ultra Miniature SOT-6 Package
s
PHEMT Process
0.006
(0.15 mm)
0.000
(0.00 mm)
0.057 (1.45 mm)
0.035 (0.90 mm)
5.0藲 鹵 1藲
SOT-6
0.074
(1.90 mm REF.)
PIN 6
PIN 1
INDICATOR
PIN 1
0.020 (0.51 mm)
0.014 (0.350 mm)
0.126 (3.20 mm)
0.087 (2.20 mm)
0.071 (1.80 mm)
0.052 (1.30 mm)
0.037 (0.95 mm) REF.
0.012
(0.30 mm)
TYP.
0.014
(0.26 mm)
0.004
(0.10 mm)
5.0藲 鹵 1藲
Description
The AS191-73 is a PHEMT GaAs FET IC high linearity
SPDT switch in a SOT-6 plastic package. This switch has
been designed for use where extremely high linearity, low
control voltage, high isolation, low insertion loss and ultra
miniature package size are required. It can be controlled
with positive, negative or a combination of both voltages.
Some standard implementations include antenna
changeover, T/R and diversity switching over 3 W. The
0.122 (3.10 mm)
0.106 (2.70 mm)
0.022 (0.61 mm)
0.004 (0.10 mm)
AS191-73 switch can be used in many analog and digital
wireless communication systems including cellular, GSM
and DECT applications.
Electrical Specifications at 25擄C (0, +3 V)
Parameter
1
Insertion Loss
2
Frequency
0.1鈥?.5 GHz
0.5鈥?.0 GHz
1.0鈥?.0 GHz
0.1鈥?.5 GHz
0.5鈥?.0 GHz
1.0鈥?.0 GHz
0.1鈥?.0 GHz
1.0鈥?.0 GHz
31
25
19
Min.
Typ.
0.45
0.50
0.55
33
27
21
1.2:1
1.3:1
Max.
0.60
0.60
0.70
Unit
dB
dB
dB
dB
dB
dB
dB
dB
Isolation
VSWR
3
Operating Characteristics at 25擄C (0, +3 V)
Parameter
Switching
Characteristics
4
Condition
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
0/+3 V
P
IN
= 34.5 dBm
0.9 GHz
0.9 GHz
Frequency
Min.
Typ.
60
100
50
+35
+65
Max.
Unit
ns
ns
mV
dBm
dBc
Input Power for -0.1 dB Compression
Harmonics H
2
, H
3
Control Voltages
V
Low
= 0 to 0.2 V @ 20 碌A(chǔ) Max.
V
High
= +2.5 V @ 100 碌A(chǔ) Max. to +5 V @ 200 碌A(chǔ) Max.
3. Insertion loss state.
4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
1. All measurements made in a 50
鈩?/div>
system, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/擄C.
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. 8/00A
1
1
2
