HIP3™ Variable Attenuator
0.80–1.00 GHz
AV111-12
Features
I
+40 dBm IP3 Typical
I
Low Loss 1 dB Typical
I
Attenuation 30 dB Typical
I
Good VSWR <1.5:1 Typical
I
Low Phase Shift
SOI
C-8
SOI
C-8
Description
The AV111-12 is a current controlled variable attenuator
from Alpha’s series of HIP3™ components. It is designed
to meet the wide dynamic range required in spread
spectrum wireless base station applications. A monolithic
quadrature hybrid is teamed with a silicon PIN diode pair
in a plastic surface mount package reducing size and
assuring consistency from part to part.
Electrical Specifications at 25°C
Parameter
Frequency
Insertion Loss (0 mA Control Current)
Attenuation @ 1.2 mA Control Current (900 MHz)
VSWR All Ports
Input 3rd Order Intercept
Relative Phase Shift Up to 20 dB Attenuation
1
Group Delay
+37
17.5
1.5
+40
7
0.4
10
0.9
Min.
0.80
1.0
Typ.
Max.
1.0
1.5
21.5
1.8
dBm
Deg.
ns
Unit
GHz
dB
dB
Operating Characteristics at 25°C (0, +5 V)
Parameter
2
Switching Characteristics
3
Condition
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru (Peak)
Frequency
Min.
Typ.
Max.
5
8
5
+15
Unit
µs
µs
mV
dBm
Maximum Input Power for <1 dB
Attenuation Variation
1. When built with external components as shown in the Pin Out diagram.
2. All measurements made in a 50
Ω
system, unless otherwise specified.
3. 0–4 mA square wave total control current.
Alpha Industries, Inc.
[781] 935-5150
•
Fax
[617] 824-4579
•
Email
sales@alphaind.com
•
www.alphaind.com
Specifications subject to change without notice. 6/01A
1
ALPHA [ ALPHA INDUSTRIES ]
