HMC571LC5
v05..0208
GaAs MMIC I/Q DOWNCONVERTER
21 - 25 GHz
Typical Applications
Features
The HMC571LC5 is ideal for:
9 dB Conversion Gain
Image Rejection: 18 dB
2 LO to RF Isolation: 35 dB
Noise Figure: 3.0 dB
• Point-to-Point and Point-to-Multi-Point Radio
• Military Radar, EW & ELINT
8
• Satellite Communications
Input IP3: +2 dBm
RoHS Compliant 5x5 mm SMT Package
Functional Diagram
General Description
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 figure 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 filter 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 Specifications, TA = +25° C, IF = 100 MHz, LO = +4 dBm, Vdd = 3.5 Vdc*
Parameter
Frequency Range, RF
Min.
Typ.
Max.
Min.
Typ.
Max.
Units
21.2 - 23.7
21 - 25
9 - 14
DC - 3.5
11
GHz
GHz
GHz
dB
Frequency Range, LO
Frequency Range, IF
Conversion Gain (As IRM)
Noise Figure
9 - 14
DC - 3.5
11
9
8
3
3
dB
Image Rejection
18
-7
22
15
-9
23
dB
1 dB Compression (Input)
2 LO to RF Isolation
2 LO to IF Isolation
-5
-6
dBm
dB
50
40
+4
60
55
38
-1
40
45
45
dB
IP3 (Input)
+6
+5
dBm
dB
Amplitude Balance
0.8
5
0.3
Phase Balance
4
Deg
mA
Total Supply Current
*Data taken as IRM with external IF Hybrid
125
150
125
150
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
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