Preliminary
PHEMT GaAs IC High Power
SP3T Switch DC–2 GHz
AS202-321
Features
■
Positive Low Voltage Control
(0/2.75 V Operation)
■
Low Insertion Loss (< 0.6 dB @ 2 GHz)
■
High Isolation (30 dB at 1 and 2 GHz)
■
Excellent Harmonics Performance
(65 dBc @ 2.75 V 1 GHz P
IN
= 34 dBm)
■
Miniature MLP-12 Plastic Package
■
PHEMT Process
EXPOSED
PAD
MLP-12
0.118 (3.00 mm)
PIN 1
INDICATOR
0.118
(3.00 mm)
0.008 (0.20 mm)
SEATING PLANE
0.001
(0.02 mm)
0.030
(0.75 mm)
± 0.002
(0.05 mm)
PIN 1
INDICATOR
0.029
(0.73 mm)
Description
The AS202-321 is a PHEMT GaAs IC SP3T antenna
switch operating in the 900 MHz and 1800 MHz
frequency bands. Switching between the antenna and
T
X
/R
X
ports is accomplished with 3 control inputs. When
the control inputs are driven with the appropriate voltages,
a low insertion loss path is provided from an antenna
port to an R
X
or T
X
port, while the other ports have
high attenuation.
0.009 (0.23 mm)
+ 0.003 (0.07 mm)
- 0.002 (0.05 mm)
0.0196
(0.50 mm) BSC
0.057 (1.45 mm) SQ.
+ 0.004 (0.10 mm)
- 0.006 (0.15 mm)
Electrical Specifications at 25°C (0, +2.75 V)
Parameter
Insertion Loss
Ant-RF1, RF2, RF3
Frequency
0.1–0.5 GHz
0.5–1.0 GHz
1.0–2.0 GHz
0.1–0.5 GHz
0.5–1.0 GHz
1.0–2.0 GHz
0.1–0.5 GHz
0.5–1.0 GHz
1.0–2.0 GHz
25
22
22
Min.
Typ.
0.55
0.60
0.80
28
25
25
18
18
14
Max.
0.75
0.80
1.10
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
Isolation
Ant-RF1, RF2, RF3
Return Loss
Ant-RF1, RF2, RF3
Operating Characteristics at 25°C (0, +2.75 V)
Parameter
2nd Harmonic
3rd Harmonic
2nd Harmonic
3rd Harmonic
Gate Leakage Current
Control Voltages
Condition
34 dBm In @ 2.75 V
34 dBm In @ 2.75 V
32 dBm In @ 2.75 V
32 dBm In @ 2.75 V
34 dBm In @ 2.75 V
V
High
V
Low
-0.25
2.60
0
2.75
Frequency
1 GHz
1 GHz
2 GHz
2 GHz
Min.
Typ.
72
65
70
65
0.030
0.25
5.00
Max.
Unit
dBc
dBc
dBc
dBc
mA
V
V
Alpha Industries, Inc.
[781] 935-5150
•
Fax
[978] 241-7906
•
Email
sales@alphaind.com
•
www.alphaind.com
Specifications subject to change without notice. 8/01A
1
ALPHA [ ALPHA INDUSTRIES ]
