GaAs IC 15 dB Voltage Variable
Attenuator Single Control DC–2 GHz
AF002N2-32
Features
s
Single Voltage Control, Positive or
Negative Voltage
s
Low Cost SOT-143 Package
s
15 dB Dynamic Range
s
Non-Reflective
0.037 (0.94 mm)
0.030 (0.76 mm)
0.055 (1.40 mm)
0.047 1.19 mm)
0.098 (2.49 mm)
0.083 (2.11 mm)
SOT-143
0.120 (3.05 mm)
0.105 (2.67 mm)
0.075
(1.91 mm)
0.021 (0.53 mm)
0.015 (0.38 mm)
Description
The AF002N2-32 is a single control non-reflective IC FET
VVA ideal for AGC applications. Its low DC drain
characteristic and size make it suitable for PCS and
portable cellular markets. A positive control voltage may
be used by adding 2 DC blocking capacitors (C
BL
) and
1 bypass capacitor (C
BP
).
0.006 (0.15 mm)
0.003 (0.08 mm)
8˚0’ MAX.
0.010
(0.25 mm)
0.005 (0.13 mm)
0.035 (0.89 mm)
0.004 (0.19 mm)
0.001 (0.03 mm)
Electrical Specifications at 25°C (0, -5 V)
Parameter
1
Insertion Loss (V
1
= -5 V)
3
Frequency
2
DC–0.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–0.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–2.0 GHz
18
14
10
Min.
Typ.
3.1
3.3
3.5
20
16
12
2.0:1
2.2:1
Max.
3.3
3.5
3.8
Unit
dB
dB
dB
dB
dB
dB
Attenuation (V
1
= 0 V)
VSWR (V
1
= 0 to -5 V)
Operating Characteristics at 25°C (0, -5 V)
Parameter
Switching Characteristics
4
Condition
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
For All Attenuation Levels
0.05 GHz
0.90 GHz
Frequency
Min.
Typ.
7
10
20
-3
0
Max.
Unit
ns
ns
mV
dBm
dBm
Input Power for 1 dB Compression
Control Voltages
V
Low
= 0 to -0.2 V @ 20 µA Max.
V
High
= -5 V @ 50 µA Max. to -8 V @ 200 µA Max.
V
S
= V
High
± 0.2 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. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
Alpha Industries, Inc.
[781] 935-5150
•
Fax
[617] 824-4579
•
Email
sales@alphaind.com
•
www.alphaind.com
Specifications subject to change without notice. 3/99A
1
ALPHA [ ALPHA INDUSTRIES ]
