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AM038R1-00

33–43 GHz GaAs MMIC Image Rejection Balanced Mixer

Alpha Industries 

33–43 GHz GaAs MMIC

Image Rejection Balanced Mixer

AM038R1-00

Features

I Low Conversion Loss, 9 dB

I Low LO Power Requirement, 8 dBm

I Image Rejection, 18 dB

I No DC Bias Required

I Requires External IF 90° Hybrid

Description

Alpha’s image rejection balanced GaAs Schottky diode

mixer has a typical conversion loss of 9 dB at an LO power

level as low as 8 dBm over the band 33–43 GHz. An

external 90° IF hybrid is required to combine the IF1 and

IF2 signals at the desired IF frequency. 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. This device is recommended

for applications requiring down conversion.

Chip Outline

1.785

0.890

0.000

1.258

0.890

0.489

0.085

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

Image Rejection1

RF and LO Return Loss1

LO to RF Isolation1

LO to IF Isolation1

RF Input 1 dB Compression Point1

Individual 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

IR

RLRF, RLLO

ISOLO-RF

ISOLO-IF

P1 dB

RS

Min.

Typ.2

33–43

0–3

8–14

9

18

12

12

23

7

Max.

3.0

Unit

GHz

GHz

dBm

dB

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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