ALPHA AV101-12 Datasheet

Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [e-mail] • www.alphaind.com 1

Specifications subject to change without notice. 6/01A

HIP3™ Variable Attenuator

0.80–1.00 GHz

Features

■ +50 dBm IP3 Typical

■ Low Loss 1 dB Typical

■ Attenuation 30 dB Typical

■ Good VSWR <1.5:1 Typical

■ Small SOIC-8 Package

AV101-12

Description

The AV101-12 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.

Parameter Min. Typ. Max. Unit

Frequency 0.80 1.00 GHz

Insertion Loss (0 mA Control Current) 1 1.5 dB

Attenuation @ 3.0 mA Control Current (900 MHz) 18.5 21.5 dB

VSWR All Ports 1.5 1.8

Input 3rd Order Intercept +47 +50 dBm

Group Delay 0.9 1.2 ns

Electrical Specifications at 25°C

SOIC-8

SOIC-8

Parameter

1

Condition Frequency Min. Typ. Max. Unit

Switching Characteristics

2

Rise, Fall (10/90% or 90/10% RF) 5 µs
On, Off (50% CTL to 90/10% RF) 8 µs
Video Feedthru (Peak) 5 mV

Maximum Input Power for <1 dB
Attenuation Variation +15 dBm

Operating Characteristics at 25°C (0, +5 V)

1. All measurements made in a 50 Ω system, unless otherwise specified.

2. 0–4 mA square wave total control current.

2 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [e-mail] • www.alphaind.com

Specifications subject to change without notice. 6/01A

HIP3™ Variable Attenuator 0.80–1.00 GHz AV101-12

VSWR (:1)

Input/Output VSWR vs. Current

@ 800 MHz

1.0

1.1

1.2

1.3

1.4

1.5

0.0000 0.0010 0.0020 0.0030 0.0040 0.0050

Current (Amps)

Input

Output

VSWR (:1)

Input/Output VSWR vs. Current

@ 900 MHz

1.0

1.1

1.2

1.3

1.4

1.5

Current (Amps)

Input

Output

0.0000 0.0010 0.0020 0.0030 0.0040 0.0050

Attenuation (dB)

0.0000 0.0010 0.0020 0.0030 0.0040 0.0050

Attenuation vs. Current

-70.0

-50.0

-60.0

-40.0

-30.0

-20.0

-10.0

0.0

Current (Amps)

800 MHz

900 MHz

1000 MHz

Attenuation (dB)

0.80 0.85 0.90 0.95 1.00

Attenuation vs. Frequency

-25.0

-20.0

-15.0

-10.0

-5.0

0.0

Frequency (GHz)

0.0 mA

0.2 mA

0.9 mA

1.9 mA

2.8 mA

3.5 mA

Input/Output VSWR vs. Current

@ 1000 MHz

1.0

1.1

1.2

1.3

1.4

1.5

Current (Amps)

Input

Output

VSWR (:1)

0.0000 0.0010 0.0020 0.0030 0.0040 0.0050

Diode Current (mA)

400 600 800 1000

Typical PIN Diode Current vs. Voltage

0.01

0.1

1

10

Diode Voltage (mV)

Typical Performance Data