ALPHA AS177-86 Datasheet
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com 1
Specifications subject to change without notice. 10/99A
GaAs IC High Isolation Positive Control
SPDT Switch DC–3.0 GHz
Features
■ Positive Voltage Control (0/+3, +5 V)
■ High Isolation (50 dB @ 0.9, 1.9 GHz)
■ Low DC Power Consumption
■ Ideal for GSM, PCS, 3G and ISM 2.4 GHz
Applications
■ Miniature Low Cost MSOP-10
Plastic Package
MSOP-10
AS177-86
Description
The AS177-86 is a GaAs FET IC SPDT switch packaged
in a MSOP-10 plastic package for low cost, high isolation
commercial applications. Ideal building block for base
station dual band applications where synthesizer isolation
is critical. Use in conjunction with the AS165-59 SPST
switch to meet GSM synthesizer isolation requirements.
Parameter
1
Condition Frequency
2
Min. Typ. Max. Unit
Insertion Loss
3
DC–1.0 GHz 0.7 0.85 dB
1.0–2.0 GHz 0.8 1.00 dB
2.0–3.0 GHz 0.9 1.20 dB
Isolation J1–J2/J1–J
3
DC–2.0 GHz 44/50 48/55 dB
J1–J2/J1–J
3
2.0–2.5 GHz 41/44 46/50 dB
2.5–3.0 GHz 34 40
VSWR
4
DC–3.0 GHz 1.3:1 1.5:1
Electrical Specifications at 25°C (0, +3 V), (0, +5 V)
PIN 10
PIN 1
PIN 1
INDICATOR
0.034
(0.86 mm)
± 0.004
(0.10 mm)
0.118 (3.00 mm)
± 0.006 (0.15 mm)
0.193
(4.90 mm)
± 0.006
(0.15 mm)
0˚–6˚
8˚–16˚
0.118 (3.00 mm)
± 0.006 (0.15 mm)
0.022 (0.55 mm)
± 0.006 (0.15 mm)
0.006 (0.15 mm) MAX.
0.002 (0.05 mm) MIN.
0.0197
(0.500 mm)
BSC
0.009 (0.23 mm)
REF.
0.043
(1.09 mm)
MAX.
Preliminary
Parameter Condition Frequency Min. Typ. Max. Unit
Switching Characteristics
5
Rise, Fall (10/90% or 90/10% RF) 50 ns
On, Off (50% CTL to 90/10% RF) 100 ns
Video Feedthru 25 mV
Input Power for 1 dB Compression +3 V 0.5–3.0 GHz +21 dB
+5 V 0.5–3.0 GHz +27 dB
Intermodulation Intercept Point (IP3) Two-tone Input Power +5 dBm
+3 V 0.5–3.0 GHz +41 dBm
+5 V 0.5–3.0 GHz +45 dBm
Control Voltages V
Low
= 0 to 0.2 V @ 20 µA Max.
V
High
= +3 V @ 100 µA Max. to +5 V @ 200 µA Max.
VS = V
High
± 0.2 V
Operating Characteristics at 25°C (0, +5 V)
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.
GaAs IC High Isolation Positive Control SPDT Switch DC–3.0 GHz AS177-86
2 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 10/99A
J
2
J
1
V
1
V
2
GND
GND
GND
GND
GND
C
BL
C
BL
J
3
C
BL
1
10
2
9
3
8
4
7
5
6
CBL= 47 pF for operation >500MHz.
V
1
V
2
J1–J
2
J1–J
3
0V
High
Isolation Insertion Loss
V
High
0 Insertion Loss Isolation
Truth Table
Pin Out
V
High
= +3 V to +5 V.
Characteristic Value
RF Input Power 1 W Max. > 500 MHz
0/+8 V Control
Supply Voltage +8 V
Control Voltage -0.2 V, +8 V
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +150°C
Θ
JC
25°C/W
Absolute Maximum Ratings
0 0.5 1.0 1.5 2.0 2.5 3.0
Insertion Loss (dB)
Frequency (GHz)
Insertion Loss vs. Frequency
-1.50
-1.25
-1.00
-0.75
-0.50
-0.25
0
J
1–J2
J1–J
3
0 0.5 1.0 1.5 2.0 2.5 3.0
VSWR (dB)
Frequency (GHz)
VSWR vs. Frequency
J1–J
2
J1–J
3
1.0
1.2
1.4
1.6
1.8
2.0
-70
-20
-25
-30
-35
-40
-45
-50
-55
-60
-65
0 0.5 1.0 1.5 2.0 2.5 3.0
Isolation (dB)
Frequency (GHz)
Isolation vs. Frequency
J1–J
2
J1–J
3
Typical Performance Data (0, +5 V)
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