GaAs 30 dB IC Voltage Variable Dual
Control Attenuator DC–8 GHz
AT006N3-93
Features
I
Dual Control Voltages
I
Low Insertion Loss
I
Broadband DC–8 GHz
I
Small Low Cost “Chip on Board” Package
-93
0.160
0.140
0.100
0.060
Description
The AT006N3-93 GHz GaAs FET IC non-reflective
bridged “T” attenuator provides up to 30 dB of “non-
reflective” attenuation. The control voltage requirements
are 0 to -5 V.
This attenuator has two independent voltage controls,
which must be adjusted in a prescribed manner to obtain
the desired attenuation under non-reflective conditions.
Refer to the Application Notes section, “Dual Voltage
Controlled VVA.”
Applications for these fast attenuators are AGC circuits
and variable level control in various military and
telecommunications systems.
0.056
0.020
0.000
0.000
0.140
Electrical Specifications at 25°C
Parameter
1
Insertion
Loss
2
Frequency
4
DC–2.0 GHz
DC–4.0 GHz
DC–6.0 GHz
DC–8.0 GHz
DC–2.0 GHz
DC–4.0 GHz
DC–6.0 GHz
DC–8.0 GHz
DC–2.0 GHz
DC–4.0 GHz
DC–8.0 GHz
30
29
26
24
Min.
Typ.
0.8
1.0
1.2
1.9
35
33
30
28
1.25:1
1.40:1
1.50:1
1.3:1
1.5:1
1.6:1
Max.
1.0
1.2
1.4
2.0
Unit
dB
dB
dB
dB
dB
dB
dB
dB
Attenuation Range
VSWR (I/O)
Operating Characteristics at 25°C
Parameter
Switching Characteristics
Condition
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
3
For All Attenuation Levels
V
Low
= 0 to -0.2 V @ 20
µA
Max.
V
High
= -5 V @ 50
µA
Max.
0.5–6 GHz
0.05 GHz
Frequency
Min.
Typ.
7
10
20
0
-3
Max.
Unit
ns
ns
mV
dBm
dBm
Input Power for 1 dB Compression
Control Voltages
1. All measurements made in a 50
Ω
system, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/°C.
3. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
4. DC = 300 kHz.
Alpha Industries, Inc.
[781] 935-5150
•
Fax
[617] 824-4579
•
Email
sales@alphaind.com
•
www.alphaind.com
Specifications subject to change without notice. 9/99A
1
ALPHA [ ALPHA INDUSTRIES ]
