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AM028D1-00

26–33 GHz GaAs MMIC Double Balanced Down Converter Mixer

Alpha Industries 

26–33 GHz GaAs MMIC

Double Balanced Down Converter Mixer

AM028D1-00

Features

I Low Conversion Loss, 6.5 dB

I Insensitive to LO Power Variations

I High LO to RF Isolation, 27 dB

I No DC Bias Required

Description

Alpha’s double balanced GaAs Schottky diode mixer has

a typical conversion loss of 6.5 dB at an LO power level

as low as 11 dBm over the band 26–33 GHz. The chip

uses Alpha’s proven Schottky diode technology, and is

based upon MBE layers for the highest uniformity and

repeatability. The diodes employ surface passivation to

ensure a rugged, reliable part with through-substrate via

holes and gold-based backside metallization to facilitate

an epoxy die attach process. All chips are screened for

DC diode parameters and lot samples are RF measured

to guarantee performance.

Chip Outline

2.155

1.582

50 OHMS

0.085

0.000

1.086

0.591

Dimensions indicated in mm.

All pads are ≥ 0.07 mm wide.

Chip thickness = 0.1 mm.

Absolute Maximum Ratings

Characteristic

Operating Temperature

Storage Temperature

Total Input Power (RF + LO)

Value

-55°C to +125°C

-65°C to +150°C

23 dBm

Electrical Specifications at 25°C

Parameter

RF and LO Frequency Range

IF Frequency Range

LO Power Level

Conversion Loss1

RF and LO Return Loss1

LO to RF Isolation1

LO to IF Isolation1

RF Input 1 dB Compression Point1

Two Parallel Diode Series Resistance

1. Not measured on a 100% basis.

2. Typical represents the median parameter value across the specified

frequency range for the median chip.

Symbol

FRF, FLO

FIF

PLO

LC

RLRF, RLLO

ISOLO-RF

ISOLO-IF

P1 dB

Min.

Typ.2

26–33

0–2

11–21

6.5

20

27

30

12

Max.

1.5

Unit

GHz

GHz

dBm

dB

dB

dB

dB

dBm

Ω

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

1

Specifications subject to change without notice. 2/00A

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