GaAs 30 dB IC Voltage Variable Dual
Control Attenuator DC–6 GHz
AT006N3-00
Features
s
30 dB Range
s
Low DC Drain
s
Fast Switching
s
Capable of Meeting MIL-STD
Requirements
5
0.940
0.840
Chip Outline
0.100
0.556
1.014
0.601
Description
The AT006N3-00 chip is a GaAs FET MMIC non-reflective
bridged “T” attenuator that provides over 30 dB of
“matched” attenuation. The input and output VSWR is less
than 1.5:1 maximum under all attenuation values.
Applications for these fast attenuators are AGC circuits
and variable level control in high reliability and
telecommunications systems.
0.100
0.000
0.000
0.319
0.793
1.115
Electrical Specifications at 25°C
Parameter
1
Insertion Loss
2
Dimensions indicated in mm.
All DC (V) pads are 0.1 x 0.1 mm and RF In, Out pads are 0.07 mm wide.
Chip thickness = 0.1 mm.
Frequency
4
DC–1.0 GHz
DC–2.0 GHz
DC–4.0 GHz
DC–6.0 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–4.0 GHz
DC–6.0 GHz
DC–2.0 GHz
DC–4.0 GHz
DC–6.0 GHz
Min.
Typ.
0.8
1.0
1.2
1.5
Max.
1.0
1.2
1.4
1.7
Unit
dB
dB
dB
dB
dB
dB
dB
dB
Attenuation Range
30
29
26
25
38
35
32
30
1.2:1
1.4:1
1.5:1
1.3:1
1.5:1
1.6:1
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
0–10 dB
11–20 dB
21–30 dB
31–Max.
0.1 dB
1.0 dB
V
Low
= 0 to -0.2 V @ 20
µA
Max.
V
High
= -5 V @ 50
µA
Max.
4. DC = 300 kHz.
5. See Quality/Reliability section.
Frequency
Min.
Typ.
7
10
20
Max.
Unit
ns
ns
mV
dB
dB
dB
dB
dBm
dBm
Attenuation Flatness
DC–6 GHz
±0.5
±1.0
±1.5
±2.0
-8 (-4)
-3 (0)
Compression Point for all Attenuation
Levels 50 MHz (> 500 MHz)
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.
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 ]
