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
Parameter
1
Condition
Frequency
Min.
Typ.
Max.
Unit
Switching Characteristics
Rise, On (10/90% or 50% CTL to 90% RF)
1.0
S
Fall, Off (90/10% RF or 50% CTL to 10% RF)
0.3
S
Intermodulation Intercept Point (IIP3)
3
For Two-tone Input Power +0 dBm
0.9 GHz
12
dBm
Control Voltage (V
C
)
0.0
V
S
V
Supply Voltage (V
S
)
3
Control Current (I
C
)
0.2 x V
C
mA
Supply Current (I
S
)
150
A
GaAs IC 30 dB Voltage Variable Attenuator
Single Positive 3 V Control 1.72.5 GHz
Features
I Single Positive 3 V Control Voltage
I 33 dB Attenuation Range @ 1.9 GHz
I Excellent Linearity Performance
SOT-6
AV110-73
0.074
(1.90 mm REF.)
0.071 (1.80 mm)
0.052 (1.30 mm)
0.037 (0.95 mm) REF.
0.122 (3.10 mm)
0.106 (2.70 mm)
0.006
(0.15 mm)
0.000
(0.00 mm)
0.057 (1.45 mm)
0.035 (0.90 mm)
0.020 (0.51 mm)
0.014 (0.350 mm)
0.126 (3.20 mm)
0.087 (2.20 mm)
PIN 6
PIN 1
PIN 1
INDICATOR
0.022 (0.61 mm)
0.004 (0.10 mm)
0.014
(0.26 mm)
0.004
(0.10 mm)
0.012
(0.30 mm)
TYP.
5.0 1
5.0 1
Description
The AV110-73 GaAs IC FET voltage variable attenuator
provides 33 dB attenuation range at 1900 MHz controlled
by a single positive voltage. The VVA has a linear transfer
curve of 12 dB/V slope, with input and output VSWR better
than 2:1 over all states. It operates with supply voltage of
+3 V and control voltage of 0 V to +3 V in a low cost
SOT-6 package. The RF ports require 25 pF DC blocking
capacitors.
Operating Characteristics at 25C (V
S
= 3 V)
1. All measurements made in a 50
system, unless otherwise specified.
2. Maximum attenuation includes insertion loss.
3. For worst case state.
Preliminary
Parameter
1
Frequency
Min.
Typ.
Max.
Unit
Insertion Loss (V
C
= 0 V)
1.72.0 GHz
3.5
dB
2.02.5 GHz
3.8
dB
Maximum Attenuation (V
C
= 3 V)
2
1.72.0 GHz
33
dB
2.02.5 GHz
28
dB
VSWR (I/O)
3
1.72.5 GHz
2.0:1
Electrical Specifications at 25C (V
S
= 3 V)
GaAs IC 30 dB Voltage Variable Attenuator Single Positive 3 V Control 1.72.5 GHz
AV110-73
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
V
Control
(V)
Attenuation vs. Control Voltage
@ 1900 MHz
-40
-35
-30
-25
-20
-15
-10
-5
0
0
0.5
1.0
1.5
2.0
2.5
3.0
Attenuation (dB)
Attenuation vs. Control Voltage
@ 2400 MHz
-35
-30
-25
-20
-15
-10
-5
0
0
0.5
1.0
1.5
2.0
2.5
3.0
V
Control
(V)
Attenuation (dB)
V
C
(V)
VSWR vs. Control Voltage
VSWR
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
Input
Output
2.5
2.0
3.0
1.5
0
0.5
1.0
GND
V
S
J
1
C
BL
GND
V
C
J
2
C
BL
12
3
65
4
Characteristic
Value
RF Input Power
50 mW > 500 MHz
Supply Voltage
+7 V
Control Voltage
+3.3 V
Operating Temperature
-40C to +85C
Storage Temperature
-65C to +150C
JC
25C/W
Absolute Maximum Ratings
Pin Out
DC blocking capacitors (C
BL
) supplied externally.
C
BL
= 25 pF for 1900 MHz operation.
Note: Exceeding these parameters may cause irreversible damage.
Typical Performance Data @ 1.9 GHz
(Unless Otherwise Specified)
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