17.5 GHz to 24 GHz,

GaAs, MMIC, I/Q Downconverter

Data Sheet

ADMV1012

Rev. A

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FEATURES

RF input frequency range: 17.5 GHz to 24 GHz

IF output frequency range: 2.5 GHz to 3.5 GHz

LO input frequency range: 7 GHz to 13.5 GHz

Conversion gain (with hybrid): 15 dB typical

SSB noise figure: 2.5 dB typical

Input IP3: 3 dBm typical

Input P1dB: −5 dBm typical

25 dB of image rejection

Single-ended, 50 Ω RF and LO input ports

Exposed pad, 4.9 mm × 4.9 mm, 32-terminal LCC

APPLICATIONS

Point to point microwave radios

Radars and electronic warfare systems

Instrumentation, automatic test equipment (ATE)

Satellite communications

FUNCTIONAL BLOCK DIAGRAM

31

20

10

3

15

22

27

×2

IF2

LOIN

RFIN

VDRF VGRF

VDLO

IF1

ADMV1012

2

4

GND

GND

11

GND

Figure 1.

GENERAL DESCRIPTION

The ADMV1012 is a compact, gallium arsenide (GaAs)

design, monolithic microwave integrated circuit (MMIC), in

phase/quadrature (I/Q) downconverter in a RoHS compliant

package optimized for point to point microwave radio designs

that operate in the 17.5 GHz to 24 GHz input frequency range.

The ADMV1012 provides 15 dB of conversion gain with 25 dB

of image rejection, and 2.5 dB noise figure. The ADMV1012

uses a radio frequency (RF) low noise amplifier (LNA) followed

by an I/Q, double balanced mixer, where a driver amplifier drives

the local oscillator (LO) with a ×2 multiplier. IF1 and IF2 mixer

quadrature outputs are provided, and an external 90° hybrid is

required to select the required sideband.

The I/Q mixer topology reduces the need for filtering of unwanted

sideband. The ADMV1012 is a much smaller alternative to

hybrid style, double sideband (DSB) downconverter assemblies

and eliminates the need for wire bonding by allowing the use of

surface-mount manufacturing assemblies.

The ADMV1012 downconverter comes in a compact, thermally

enhanced, 4.9 mm × 4.9 mm, 32-terminal LCC. The ADMV1012

operates over the −40°C to +85°C temperature range.