ALPHA AV850M2-A2 Datasheet

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

Specifications subject to change without notice. 6/00A

18–40 GHz Surface Mount
Voltage V ariable Attenuator

Features

■ Surface Mount Package

■ 30 dB Attenuation Range

■ +10 dBm P

1 dB

All Attenuation States

■ Low Insertion Loss

■ 100% RF and DC Testing

AV850M2-A2

Patent Pending

Description

The A V850M2-A2 is a broadband millimeterwav e v oltage
variable attenuator in a rugged surface mount package
that is compatible with high-volume solder installation.The
attenuator is designed for use in millimeterwave
communication and sensor systems as a variable
attenuation stage in the receiver or transmitter chain when
wide dynamic range and high linearity are required.The
robust ceramic surface mount pac kage provides e xcellent
electrical performance and a high degree of
environmental protection for long-term reliability. All
attenuators are screened at the operating frequencies prior
to shipment for guaranteed performance. Attenuator is
targeted for high-volume millimeterw av e applications such
as point-to-point and point-to-multipoint wireless
communications systems. Control voltage VC2sets the
attenuation level while VC1adjusts return loss for the part.

Parameter Symbol Min. Typ. Max. Unit

Bandwidth BW 18 40 GHz
Insertion Loss at Minimum Attenuation IL

Min

34dB

Insertion Loss at Maximum Attenuation IL

Max

27 33 dBm

Input Return Loss RL

I

10 dB

Output Return Loss RL

O

10 dB

Output Power at 1 dB Gain Compression (For All Attenuation Levels) P

1 dB

8 10 dBm

Temperature Coefficient of Attenuation dG/dT -0.002 dB/C

Electrical Specifications at 25°C

Parameter Symbol Min. Typ. Max. Unit

Control Current IC1+ I

C2

<1 mA

DC

RF

Pin Out

AV850M2-A2

YYWW

RF In RF Out

Orientation

Indicated by

Missing

Castellations

V

C2

N/C N/C

N/C V

C1

N/C

18–40 GHz Surface Mount Voltage Variable Attenuator AV850M2-A2

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

Specifications subject to change without notice. 6/00A

Characteristic Value

Operating Temperature (TC) -55°C to +90°C
Storage Temperature (TST) -65°C to +150°C
Control Voltage (VC1) -7 V

DC

Control Voltage (VC2) -7 V

DC

Power In (PIN) 30 dBm

Absolute Maximum Ratings

Frequency (GHz)

Attenuation vs. Frequency

-40

-30

-20

-10

0

18 23 28 33 38

Attenuation (dB)

-0.5 V

-1.0 V

-1.5 V

-2 V

VC2 = -3 V

V

C2

= 0 V

Attenuation vs. Control Voltage

-45

-35

-25

-15

-5

-3 -2 -1 0

Control Voltage VC2 (V)

Attenuation (dB)

18 GHz

23 GHz

28 GHz

33 GHz

38 GHz

1 dB Compression vs. Attenuation

0

5

10

15

20

25

0 5 10 15 20 25 30

Attenuation (dB)

Input Power at 1 dB

Compression (dBm)

18 GHz

38 GHz

Typical Performance Data

Outline

0.241

(6.12 mm)

0.040

(1.02 mm)

0.016

(0.41 mm)

0.194

(4.93 mm)

0.056

(1.42 mm)

0.204

(5.18 mm)

0.251

(6.38 mm)

2X 0.044

(1.12 mm)

8X 0.020

(0.51 mm)

2X 0.129

(3.28 mm)

C

L

2X 0.064

(1.63 mm)

2X 0.043

(1.09 mm)

2X 0.085

(2.16 mm)

C

L