17.5 GHz to 24 GHz,
GaAs, MMIC, I/Q Downconverter
ADMV1012
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
VDRF VGRF
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
27
31
ADMV1012
RFIN
3
LOIN 10
VDLO
20 IF2
22 IF1
×2
15
2
4
GND
GND
GND
11
Single-ended, 50 Ω RF and LO input ports
Exposed pad, 4.9 mm × 4.9 mm, 32-terminal LCC
Figure 1.
APPLICATIONS
Point to point microwave radios
Radars and electronic warfare systems
Instrumentation, automatic test equipment (ATE)
Satellite communications
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 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 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 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.
Rev. A
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