For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
MIXERS - I/Q MIXERS, IRMS & RECEIVERS - SMT
1
HMC571LC5
v08.0514
GaAs MMIC I/Q DOWNCONVERTER
21 - 25 GHz
General Description
FeaturesTypical Applications
The HMC571LC5 is a compact GaAs MMIC I/Q
downconverter in a leadless RoHS compliant
SMT package. This device provides a small signal
conversion gain of 9 dB with a noise gure of 3.0 dB
and 18 dB of image rejection across the frequency
band. The HMC571LC5 utilizes an LNA followed by
an image reject mixer which is driven by an active x2
multiplier. The image reject mixer eliminates the need
for a lter following the LNA, and removes thermal
noise at the image frequency. I and Q mixer outputs
are provided and an external 90° hybrid is needed to
select the required sideband. The HMC571LC5 is a
much smaller alternative to hybrid style image reject
mixer downconverter assemblies, and it eliminates the
need for wire bonding by allowing the use of surface
mount manufacturing techniques.
Electrical Specications, T
A
= +25 °C, IF = 100 MHz, LO = +4 dBm, Vdd = 3.5 Vdc*
Parameter Min. Typ. Max. Min. Typ. Max. Units
Frequency Range, RF 21.2 - 23.7 21 - 25 GHz
Frequency Range, LO 9 - 14 9 - 14 GHz
Frequency Range, IF DC - 3.5 DC - 3.5 GHz
Conversion Gain (As IRM) 9 11 8 11 dB
Noise Figure 3 3 dB
Image Rejection 18 22 15 23 dB
1 dB Compression (Input) -7 -5 -9 -6 dBm
2 LO to RF Isolation 50 60 55 40 dB
2 LO to IF Isolation 40 45 38 45 dB
IP3 (Input) +4 +6 -1 +5 dBm
Amplitude Balance 0.8 0.3 dB
Phase Balance 5 4 Deg
Total Supply Current 125 165 125 165 mA
*Data taken as IRM with external IF Hybrid
Functional Diagram
The HMC571LC5 is ideal for:
• Point-to-Point and Point-to-Multi-Point Radio
• Military Radar, EW & ELINT
• Satellite Communications
Conversion Gain: 9 dB
Image Rejection: 18 dB
2 LO to RF Isolation: 35 dB
Noise Figure: 3 dB
Input IP3: +2 dBm
32 Lead 5x5mm SMT Package: 25mm²
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
